/*
* Copyright (C) 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License
*/
package com.android.systemui.statusbar.stack;
import android.animation.Animator;
import android.animation.AnimatorListenerAdapter;
import android.animation.ObjectAnimator;
import android.animation.PropertyValuesHolder;
import android.animation.TimeAnimator;
import android.animation.ValueAnimator;
import android.animation.ValueAnimator.AnimatorUpdateListener;
import android.annotation.FloatRange;
import android.annotation.Nullable;
import android.content.Context;
import android.content.res.Configuration;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.PointF;
import android.graphics.PorterDuff;
import android.graphics.PorterDuffXfermode;
import android.graphics.Rect;
import android.os.Bundle;
import android.os.Handler;
import android.util.AttributeSet;
import android.util.FloatProperty;
import android.util.Log;
import android.util.Pair;
import android.util.Property;
import android.view.MotionEvent;
import android.view.VelocityTracker;
import android.view.View;
import android.view.ViewConfiguration;
import android.view.ViewGroup;
import android.view.ViewTreeObserver;
import android.view.WindowInsets;
import android.view.accessibility.AccessibilityEvent;
import android.view.accessibility.AccessibilityNodeInfo;
import android.view.animation.AnimationUtils;
import android.view.animation.Interpolator;
import android.widget.OverScroller;
import android.widget.ScrollView;
import com.android.internal.logging.MetricsLogger;
import com.android.internal.logging.MetricsProto.MetricsEvent;
import com.android.systemui.ExpandHelper;
import com.android.systemui.Interpolators;
import com.android.systemui.R;
import com.android.systemui.SwipeHelper;
import com.android.systemui.classifier.FalsingManager;
import com.android.systemui.statusbar.ActivatableNotificationView;
import com.android.systemui.statusbar.DismissView;
import com.android.systemui.statusbar.EmptyShadeView;
import com.android.systemui.statusbar.ExpandableNotificationRow;
import com.android.systemui.statusbar.ExpandableView;
import com.android.systemui.statusbar.NotificationGuts;
import com.android.systemui.statusbar.NotificationOverflowContainer;
import com.android.systemui.statusbar.NotificationSettingsIconRow;
import com.android.systemui.statusbar.NotificationSettingsIconRow.SettingsIconRowListener;
import com.android.systemui.statusbar.StackScrollerDecorView;
import com.android.systemui.statusbar.StatusBarState;
import com.android.systemui.statusbar.notification.FakeShadowView;
import com.android.systemui.statusbar.notification.NotificationUtils;
import com.android.systemui.statusbar.phone.NotificationGroupManager;
import com.android.systemui.statusbar.phone.PhoneStatusBar;
import com.android.systemui.statusbar.phone.ScrimController;
import com.android.systemui.statusbar.policy.HeadsUpManager;
import com.android.systemui.statusbar.policy.ScrollAdapter;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashSet;
/**
* A layout which handles a dynamic amount of notifications and presents them in a scrollable stack.
*/
public class NotificationStackScrollLayout extends ViewGroup
implements SwipeHelper.Callback, ExpandHelper.Callback, ScrollAdapter,
ExpandableView.OnHeightChangedListener, NotificationGroupManager.OnGroupChangeListener,
SettingsIconRowListener, ScrollContainer {
public static final float BACKGROUND_ALPHA_DIMMED = 0.7f;
private static final String TAG = "StackScroller";
private static final boolean DEBUG = false;
private static final float RUBBER_BAND_FACTOR_NORMAL = 0.35f;
private static final float RUBBER_BAND_FACTOR_AFTER_EXPAND = 0.15f;
private static final float RUBBER_BAND_FACTOR_ON_PANEL_EXPAND = 0.21f;
/**
* Sentinel value for no current active pointer. Used by {@link #mActivePointerId}.
*/
private static final int INVALID_POINTER = -1;
private ExpandHelper mExpandHelper;
private NotificationSwipeHelper mSwipeHelper;
private boolean mSwipingInProgress;
private int mCurrentStackHeight = Integer.MAX_VALUE;
private final Paint mBackgroundPaint = new Paint();
private float mExpandedHeight;
private int mOwnScrollY;
private int mMaxLayoutHeight;
private VelocityTracker mVelocityTracker;
private OverScroller mScroller;
private Runnable mFinishScrollingCallback;
private int mTouchSlop;
private int mMinimumVelocity;
private int mMaximumVelocity;
private int mOverflingDistance;
private float mMaxOverScroll;
private boolean mIsBeingDragged;
private int mLastMotionY;
private int mDownX;
private int mActivePointerId = INVALID_POINTER;
private boolean mTouchIsClick;
private float mInitialTouchX;
private float mInitialTouchY;
private Paint mDebugPaint;
private int mContentHeight;
private int mCollapsedSize;
private int mBottomStackSlowDownHeight;
private int mBottomStackPeekSize;
private int mPaddingBetweenElements;
private int mIncreasedPaddingBetweenElements;
private int mTopPadding;
private int mBottomInset = 0;
/**
* The algorithm which calculates the properties for our children
*/
private final StackScrollAlgorithm mStackScrollAlgorithm;
/**
* The current State this Layout is in
*/
private StackScrollState mCurrentStackScrollState = new StackScrollState(this);
private AmbientState mAmbientState = new AmbientState();
private NotificationGroupManager mGroupManager;
private HashSet<View> mChildrenToAddAnimated = new HashSet<>();
private ArrayList<View> mAddedHeadsUpChildren = new ArrayList<>();
private ArrayList<View> mChildrenToRemoveAnimated = new ArrayList<>();
private ArrayList<View> mSnappedBackChildren = new ArrayList<>();
private ArrayList<View> mDragAnimPendingChildren = new ArrayList<>();
private ArrayList<View> mChildrenChangingPositions = new ArrayList<>();
private HashSet<View> mFromMoreCardAdditions = new HashSet<>();
private ArrayList<AnimationEvent> mAnimationEvents = new ArrayList<>();
private ArrayList<View> mSwipedOutViews = new ArrayList<>();
private final StackStateAnimator mStateAnimator = new StackStateAnimator(this);
private boolean mAnimationsEnabled;
private boolean mChangePositionInProgress;
private boolean mChildTransferInProgress;
/**
* The raw amount of the overScroll on the top, which is not rubber-banded.
*/
private float mOverScrolledTopPixels;
/**
* The raw amount of the overScroll on the bottom, which is not rubber-banded.
*/
private float mOverScrolledBottomPixels;
private OnChildLocationsChangedListener mListener;
private OnOverscrollTopChangedListener mOverscrollTopChangedListener;
private ExpandableView.OnHeightChangedListener mOnHeightChangedListener;
private OnEmptySpaceClickListener mOnEmptySpaceClickListener;
private boolean mNeedsAnimation;
private boolean mTopPaddingNeedsAnimation;
private boolean mDimmedNeedsAnimation;
private boolean mHideSensitiveNeedsAnimation;
private boolean mDarkNeedsAnimation;
private int mDarkAnimationOriginIndex;
private boolean mActivateNeedsAnimation;
private boolean mGoToFullShadeNeedsAnimation;
private boolean mIsExpanded = true;
private boolean mChildrenUpdateRequested;
private boolean mIsExpansionChanging;
private boolean mPanelTracking;
private boolean mExpandingNotification;
private boolean mExpandedInThisMotion;
private boolean mScrollingEnabled;
private DismissView mDismissView;
private EmptyShadeView mEmptyShadeView;
private boolean mDismissAllInProgress;
/**
* Was the scroller scrolled to the top when the down motion was observed?
*/
private boolean mScrolledToTopOnFirstDown;
/**
* The minimal amount of over scroll which is needed in order to switch to the quick settings
* when over scrolling on a expanded card.
*/
private float mMinTopOverScrollToEscape;
private int mIntrinsicPadding;
private float mStackTranslation;
private float mTopPaddingOverflow;
private boolean mDontReportNextOverScroll;
private boolean mDontClampNextScroll;
private boolean mNeedViewResizeAnimation;
private View mExpandedGroupView;
private boolean mEverythingNeedsAnimation;
/**
* The maximum scrollPosition which we are allowed to reach when a notification was expanded.
* This is needed to avoid scrolling too far after the notification was collapsed in the same
* motion.
*/
private int mMaxScrollAfterExpand;
private SwipeHelper.LongPressListener mLongPressListener;
private NotificationSettingsIconRow mCurrIconRow;
private View mTranslatingParentView;
private View mGearExposedView;
/**
* Should in this touch motion only be scrolling allowed? It's true when the scroller was
* animating.
*/
private boolean mOnlyScrollingInThisMotion;
private boolean mDisallowDismissInThisMotion;
private boolean mInterceptDelegateEnabled;
private boolean mDelegateToScrollView;
private boolean mDisallowScrollingInThisMotion;
private long mGoToFullShadeDelay;
private ViewTreeObserver.OnPreDrawListener mChildrenUpdater
= new ViewTreeObserver.OnPreDrawListener() {
@Override
public boolean onPreDraw() {
updateForcedScroll();
updateChildren();
mChildrenUpdateRequested = false;
getViewTreeObserver().removeOnPreDrawListener(this);
return true;
}
};
private PhoneStatusBar mPhoneStatusBar;
private int[] mTempInt2 = new int[2];
private boolean mGenerateChildOrderChangedEvent;
private HashSet<Runnable> mAnimationFinishedRunnables = new HashSet<>();
private HashSet<View> mClearOverlayViewsWhenFinished = new HashSet<>();
private HashSet<Pair<ExpandableNotificationRow, Boolean>> mHeadsUpChangeAnimations
= new HashSet<>();
private HeadsUpManager mHeadsUpManager;
private boolean mTrackingHeadsUp;
private ScrimController mScrimController;
private boolean mForceNoOverlappingRendering;
private NotificationOverflowContainer mOverflowContainer;
private final ArrayList<Pair<ExpandableNotificationRow, Boolean>> mTmpList = new ArrayList<>();
private FalsingManager mFalsingManager;
private boolean mAnimationRunning;
private ViewTreeObserver.OnPreDrawListener mBackgroundUpdater
= new ViewTreeObserver.OnPreDrawListener() {
@Override
public boolean onPreDraw() {
// if it needs animation
if (!mNeedsAnimation && !mChildrenUpdateRequested) {
updateBackground();
}
return true;
}
};
private Rect mBackgroundBounds = new Rect();
private Rect mStartAnimationRect = new Rect();
private Rect mEndAnimationRect = new Rect();
private Rect mCurrentBounds = new Rect(-1, -1, -1, -1);
private boolean mAnimateNextBackgroundBottom;
private boolean mAnimateNextBackgroundTop;
private ObjectAnimator mBottomAnimator = null;
private ObjectAnimator mTopAnimator = null;
private ActivatableNotificationView mFirstVisibleBackgroundChild = null;
private ActivatableNotificationView mLastVisibleBackgroundChild = null;
private int mBgColor;
private float mDimAmount;
private ValueAnimator mDimAnimator;
private ArrayList<ExpandableView> mTmpSortedChildren = new ArrayList<>();
private Animator.AnimatorListener mDimEndListener = new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
mDimAnimator = null;
}
};
private ValueAnimator.AnimatorUpdateListener mDimUpdateListener
= new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
setDimAmount((Float) animation.getAnimatedValue());
}
};
protected ViewGroup mQsContainer;
private boolean mContinuousShadowUpdate;
private ViewTreeObserver.OnPreDrawListener mShadowUpdater
= new ViewTreeObserver.OnPreDrawListener() {
@Override
public boolean onPreDraw() {
updateViewShadows();
return true;
}
};
private Comparator<ExpandableView> mViewPositionComparator = new Comparator<ExpandableView>() {
@Override
public int compare(ExpandableView view, ExpandableView otherView) {
float endY = view.getTranslationY() + view.getActualHeight();
float otherEndY = otherView.getTranslationY() + otherView.getActualHeight();
if (endY < otherEndY) {
return -1;
} else if (endY > otherEndY) {
return 1;
} else {
// The two notifications end at the same location
return 0;
}
}
};
private PorterDuffXfermode mSrcMode = new PorterDuffXfermode(PorterDuff.Mode.SRC);
private boolean mPulsing;
private boolean mDrawBackgroundAsSrc;
private boolean mFadingOut;
private boolean mParentFadingOut;
private boolean mGroupExpandedForMeasure;
private boolean mScrollable;
private View mForcedScroll;
private float mBackgroundFadeAmount = 1.0f;
private static final Property<NotificationStackScrollLayout, Float> BACKGROUND_FADE =
new FloatProperty<NotificationStackScrollLayout>("backgroundFade") {
@Override
public void setValue(NotificationStackScrollLayout object, float value) {
object.setBackgroundFadeAmount(value);
}
@Override
public Float get(NotificationStackScrollLayout object) {
return object.getBackgroundFadeAmount();
}
};
private boolean mQsExpanded;
private boolean mForwardScrollable;
private boolean mBackwardScrollable;
public NotificationStackScrollLayout(Context context) {
this(context, null);
}
public NotificationStackScrollLayout(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public NotificationStackScrollLayout(Context context, AttributeSet attrs, int defStyleAttr) {
this(context, attrs, defStyleAttr, 0);
}
public NotificationStackScrollLayout(Context context, AttributeSet attrs, int defStyleAttr,
int defStyleRes) {
super(context, attrs, defStyleAttr, defStyleRes);
mBgColor = context.getColor(R.color.notification_shade_background_color);
int minHeight = getResources().getDimensionPixelSize(R.dimen.notification_min_height);
int maxHeight = getResources().getDimensionPixelSize(R.dimen.notification_max_height);
mExpandHelper = new ExpandHelper(getContext(), this,
minHeight, maxHeight);
mExpandHelper.setEventSource(this);
mExpandHelper.setScrollAdapter(this);
mSwipeHelper = new NotificationSwipeHelper(SwipeHelper.X, this, getContext());
mSwipeHelper.setLongPressListener(mLongPressListener);
mStackScrollAlgorithm = new StackScrollAlgorithm(context);
initView(context);
setWillNotDraw(false);
if (DEBUG) {
mDebugPaint = new Paint();
mDebugPaint.setColor(0xffff0000);
mDebugPaint.setStrokeWidth(2);
mDebugPaint.setStyle(Paint.Style.STROKE);
}
mFalsingManager = FalsingManager.getInstance(context);
}
@Override
public void onGearTouched(ExpandableNotificationRow row, int x, int y) {
if (mLongPressListener != null) {
MetricsLogger.action(mContext, MetricsEvent.ACTION_TOUCH_GEAR,
row.getStatusBarNotification().getPackageName());
mLongPressListener.onLongPress(row, x, y);
}
}
@Override
public void onSettingsIconRowReset(ExpandableNotificationRow row) {
if (mTranslatingParentView != null && row == mTranslatingParentView) {
mSwipeHelper.setSnappedToGear(false);
mGearExposedView = null;
mTranslatingParentView = null;
}
}
@Override
protected void onDraw(Canvas canvas) {
if (mCurrentBounds.top < mCurrentBounds.bottom) {
canvas.drawRect(0, mCurrentBounds.top, getWidth(), mCurrentBounds.bottom,
mBackgroundPaint);
}
if (DEBUG) {
int y = mTopPadding;
canvas.drawLine(0, y, getWidth(), y, mDebugPaint);
y = (int) (getLayoutHeight() - mBottomStackPeekSize
- mBottomStackSlowDownHeight);
canvas.drawLine(0, y, getWidth(), y, mDebugPaint);
y = (int) (getLayoutHeight() - mBottomStackPeekSize);
canvas.drawLine(0, y, getWidth(), y, mDebugPaint);
y = (int) getLayoutHeight();
canvas.drawLine(0, y, getWidth(), y, mDebugPaint);
y = getHeight() - getEmptyBottomMargin();
canvas.drawLine(0, y, getWidth(), y, mDebugPaint);
}
}
private void updateBackgroundDimming() {
float alpha = BACKGROUND_ALPHA_DIMMED + (1 - BACKGROUND_ALPHA_DIMMED) * (1.0f - mDimAmount);
alpha *= mBackgroundFadeAmount;
// We need to manually blend in the background color
int scrimColor = mScrimController.getScrimBehindColor();
// SRC_OVER blending Sa + (1 - Sa)*Da, Rc = Sc + (1 - Sa)*Dc
float alphaInv = 1 - alpha;
int color = Color.argb((int) (alpha * 255 + alphaInv * Color.alpha(scrimColor)),
(int) (mBackgroundFadeAmount * Color.red(mBgColor)
+ alphaInv * Color.red(scrimColor)),
(int) (mBackgroundFadeAmount * Color.green(mBgColor)
+ alphaInv * Color.green(scrimColor)),
(int) (mBackgroundFadeAmount * Color.blue(mBgColor)
+ alphaInv * Color.blue(scrimColor)));
mBackgroundPaint.setColor(color);
invalidate();
}
private void initView(Context context) {
mScroller = new OverScroller(getContext());
setDescendantFocusability(FOCUS_AFTER_DESCENDANTS);
setClipChildren(false);
final ViewConfiguration configuration = ViewConfiguration.get(context);
mTouchSlop = configuration.getScaledTouchSlop();
mMinimumVelocity = configuration.getScaledMinimumFlingVelocity();
mMaximumVelocity = configuration.getScaledMaximumFlingVelocity();
mOverflingDistance = configuration.getScaledOverflingDistance();
mCollapsedSize = context.getResources()
.getDimensionPixelSize(R.dimen.notification_min_height);
mBottomStackPeekSize = context.getResources()
.getDimensionPixelSize(R.dimen.bottom_stack_peek_amount);
mStackScrollAlgorithm.initView(context);
mPaddingBetweenElements = Math.max(1, context.getResources()
.getDimensionPixelSize(R.dimen.notification_divider_height));
mIncreasedPaddingBetweenElements = context.getResources()
.getDimensionPixelSize(R.dimen.notification_divider_height_increased);
mBottomStackSlowDownHeight = mStackScrollAlgorithm.getBottomStackSlowDownLength();
mMinTopOverScrollToEscape = getResources().getDimensionPixelSize(
R.dimen.min_top_overscroll_to_qs);
}
public void setDrawBackgroundAsSrc(boolean asSrc) {
mDrawBackgroundAsSrc = asSrc;
updateSrcDrawing();
}
private void updateSrcDrawing() {
mBackgroundPaint.setXfermode(mDrawBackgroundAsSrc && (!mFadingOut && !mParentFadingOut)
? mSrcMode : null);
invalidate();
}
private void notifyHeightChangeListener(ExpandableView view) {
if (mOnHeightChangedListener != null) {
mOnHeightChangedListener.onHeightChanged(view, false /* needsAnimation */);
}
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
// We need to measure all children even the GONE ones, such that the heights are calculated
// correctly as they are used to calculate how many we can fit on the screen.
final int size = getChildCount();
for (int i = 0; i < size; i++) {
measureChild(getChildAt(i), widthMeasureSpec, heightMeasureSpec);
}
}
@Override
protected void onLayout(boolean changed, int l, int t, int r, int b) {
// we layout all our children centered on the top
float centerX = getWidth() / 2.0f;
for (int i = 0; i < getChildCount(); i++) {
View child = getChildAt(i);
// We need to layout all children even the GONE ones, such that the heights are
// calculated correctly as they are used to calculate how many we can fit on the screen
float width = child.getMeasuredWidth();
float height = child.getMeasuredHeight();
child.layout((int) (centerX - width / 2.0f),
0,
(int) (centerX + width / 2.0f),
(int) height);
}
setMaxLayoutHeight(getHeight());
updateContentHeight();
clampScrollPosition();
requestChildrenUpdate();
updateFirstAndLastBackgroundViews();
updateAlgorithmLayoutMinHeight();
}
private void requestAnimationOnViewResize(ExpandableNotificationRow row) {
if (mAnimationsEnabled && (mIsExpanded || row != null && row.isPinned())) {
mNeedViewResizeAnimation = true;
mNeedsAnimation = true;
}
}
public void updateSpeedBumpIndex(int newIndex) {
mAmbientState.setSpeedBumpIndex(newIndex);
}
public void setChildLocationsChangedListener(OnChildLocationsChangedListener listener) {
mListener = listener;
}
/**
* Returns the location the given child is currently rendered at.
*
* @param child the child to get the location for
* @return one of {@link StackViewState}'s <code>LOCATION_*</code> constants
*/
public int getChildLocation(View child) {
StackViewState childViewState = mCurrentStackScrollState.getViewStateForView(child);
if (childViewState == null) {
return StackViewState.LOCATION_UNKNOWN;
}
if (childViewState.gone) {
return StackViewState.LOCATION_GONE;
}
return childViewState.location;
}
private void setMaxLayoutHeight(int maxLayoutHeight) {
mMaxLayoutHeight = maxLayoutHeight;
updateAlgorithmHeightAndPadding();
}
private void updateAlgorithmHeightAndPadding() {
mAmbientState.setLayoutHeight(getLayoutHeight());
updateAlgorithmLayoutMinHeight();
mAmbientState.setTopPadding(mTopPadding);
}
private void updateAlgorithmLayoutMinHeight() {
mAmbientState.setLayoutMinHeight(mQsExpanded && !onKeyguard() ? getLayoutMinHeight() : 0);
}
/**
* Updates the children views according to the stack scroll algorithm. Call this whenever
* modifications to {@link #mOwnScrollY} are performed to reflect it in the view layout.
*/
private void updateChildren() {
updateScrollStateForAddedChildren();
mAmbientState.setScrollY(mOwnScrollY);
mStackScrollAlgorithm.getStackScrollState(mAmbientState, mCurrentStackScrollState);
if (!isCurrentlyAnimating() && !mNeedsAnimation) {
applyCurrentState();
} else {
startAnimationToState();
}
}
private void updateScrollStateForAddedChildren() {
if (mChildrenToAddAnimated.isEmpty()) {
return;
}
for (int i = 0; i < getChildCount(); i++) {
ExpandableView child = (ExpandableView) getChildAt(i);
if (mChildrenToAddAnimated.contains(child)) {
int startingPosition = getPositionInLinearLayout(child);
int padding = child.getIncreasedPaddingAmount() == 1.0f
? mIncreasedPaddingBetweenElements :
mPaddingBetweenElements;
int childHeight = getIntrinsicHeight(child) + padding;
if (startingPosition < mOwnScrollY) {
// This child starts off screen, so let's keep it offscreen to keep the others visible
setOwnScrollY(mOwnScrollY + childHeight);
}
}
}
clampScrollPosition();
}
private void updateForcedScroll() {
if (mForcedScroll != null && (!mForcedScroll.hasFocus()
|| !mForcedScroll.isAttachedToWindow())) {
mForcedScroll = null;
}
if (mForcedScroll != null) {
ExpandableView expandableView = (ExpandableView) mForcedScroll;
int positionInLinearLayout = getPositionInLinearLayout(expandableView);
int targetScroll = targetScrollForView(expandableView, positionInLinearLayout);
int outOfViewScroll = positionInLinearLayout + expandableView.getIntrinsicHeight();
targetScroll = Math.max(0, Math.min(targetScroll, getScrollRange()));
// Only apply the scroll if we're scrolling the view upwards, or the view is so far up
// that it is not visible anymore.
if (mOwnScrollY < targetScroll || outOfViewScroll < mOwnScrollY) {
setOwnScrollY(targetScroll);
}
}
}
private void requestChildrenUpdate() {
if (!mChildrenUpdateRequested) {
getViewTreeObserver().addOnPreDrawListener(mChildrenUpdater);
mChildrenUpdateRequested = true;
invalidate();
}
}
private boolean isCurrentlyAnimating() {
return mStateAnimator.isRunning();
}
private void clampScrollPosition() {
int scrollRange = getScrollRange();
if (scrollRange < mOwnScrollY) {
setOwnScrollY(scrollRange);
}
}
public int getTopPadding() {
return mTopPadding;
}
private void setTopPadding(int topPadding, boolean animate) {
if (mTopPadding != topPadding) {
mTopPadding = topPadding;
updateAlgorithmHeightAndPadding();
updateContentHeight();
if (animate && mAnimationsEnabled && mIsExpanded) {
mTopPaddingNeedsAnimation = true;
mNeedsAnimation = true;
}
requestChildrenUpdate();
notifyHeightChangeListener(null);
}
}
/**
* Update the height of the panel.
*
* @param height the expanded height of the panel
*/
public void setExpandedHeight(float height) {
mExpandedHeight = height;
setIsExpanded(height > 0.0f);
int stackHeight;
float translationY;
float appearEndPosition = getAppearEndPosition();
float appearStartPosition = getAppearStartPosition();
if (height >= appearEndPosition) {
translationY = 0;
stackHeight = (int) height;
} else {
float appearFraction = getAppearFraction(height);
if (appearFraction >= 0) {
translationY = NotificationUtils.interpolate(getExpandTranslationStart(), 0,
appearFraction);
} else {
// This may happen when pushing up a heads up. We linearly push it up from the
// start
translationY = height - appearStartPosition + getExpandTranslationStart();
}
stackHeight = (int) (height - translationY);
}
if (stackHeight != mCurrentStackHeight) {
mCurrentStackHeight = stackHeight;
updateAlgorithmHeightAndPadding();
requestChildrenUpdate();
}
setStackTranslation(translationY);
}
/**
* @return The translation at the beginning when expanding.
* Measured relative to the resting position.
*/
private float getExpandTranslationStart() {
int startPosition = 0;
if (!mTrackingHeadsUp && !mHeadsUpManager.hasPinnedHeadsUp()) {
startPosition = - Math.min(getFirstChildIntrinsicHeight(),
mMaxLayoutHeight - mIntrinsicPadding - mBottomStackSlowDownHeight
- mBottomStackPeekSize);
}
return startPosition - mTopPadding;
}
/**
* @return the position from where the appear transition starts when expanding.
* Measured in absolute height.
*/
private float getAppearStartPosition() {
return mTrackingHeadsUp
? mHeadsUpManager.getTopHeadsUpPinnedHeight()
: 0;
}
/**
* @return the position from where the appear transition ends when expanding.
* Measured in absolute height.
*/
private float getAppearEndPosition() {
int firstItemHeight = mTrackingHeadsUp || mHeadsUpManager.hasPinnedHeadsUp()
? mHeadsUpManager.getTopHeadsUpPinnedHeight() + mBottomStackPeekSize
+ mBottomStackSlowDownHeight
: getLayoutMinHeight();
return firstItemHeight + (onKeyguard() ? mTopPadding : mIntrinsicPadding);
}
/**
* @param height the height of the panel
* @return the fraction of the appear animation that has been performed
*/
public float getAppearFraction(float height) {
float appearEndPosition = getAppearEndPosition();
float appearStartPosition = getAppearStartPosition();
return (height - appearStartPosition)
/ (appearEndPosition - appearStartPosition);
}
public float getStackTranslation() {
return mStackTranslation;
}
private void setStackTranslation(float stackTranslation) {
if (stackTranslation != mStackTranslation) {
mStackTranslation = stackTranslation;
mAmbientState.setStackTranslation(stackTranslation);
requestChildrenUpdate();
}
}
/**
* Get the current height of the view. This is at most the msize of the view given by a the
* layout but it can also be made smaller by setting {@link #mCurrentStackHeight}
*
* @return either the layout height or the externally defined height, whichever is smaller
*/
private int getLayoutHeight() {
return Math.min(mMaxLayoutHeight, mCurrentStackHeight);
}
public int getFirstItemMinHeight() {
final ExpandableView firstChild = getFirstChildNotGone();
return firstChild != null ? firstChild.getMinHeight() : mCollapsedSize;
}
public int getBottomStackPeekSize() {
return mBottomStackPeekSize;
}
public int getBottomStackSlowDownHeight() {
return mBottomStackSlowDownHeight;
}
public void setLongPressListener(SwipeHelper.LongPressListener listener) {
mSwipeHelper.setLongPressListener(listener);
mLongPressListener = listener;
}
public void setQsContainer(ViewGroup qsContainer) {
mQsContainer = qsContainer;
}
@Override
public void onChildDismissed(View v) {
ExpandableNotificationRow row = (ExpandableNotificationRow) v;
if (!row.isDismissed()) {
handleChildDismissed(v);
}
ViewGroup transientContainer = row.getTransientContainer();
if (transientContainer != null) {
transientContainer.removeTransientView(v);
}
}
private void handleChildDismissed(View v) {
if (mDismissAllInProgress) {
return;
}
setSwipingInProgress(false);
if (mDragAnimPendingChildren.contains(v)) {
// We start the swipe and finish it in the same frame, we don't want any animation
// for the drag
mDragAnimPendingChildren.remove(v);
}
mSwipedOutViews.add(v);
mAmbientState.onDragFinished(v);
updateContinuousShadowDrawing();
if (v instanceof ExpandableNotificationRow) {
ExpandableNotificationRow row = (ExpandableNotificationRow) v;
if (row.isHeadsUp()) {
mHeadsUpManager.addSwipedOutNotification(row.getStatusBarNotification().getKey());
}
}
performDismiss(v, mGroupManager, false /* fromAccessibility */);
mFalsingManager.onNotificationDismissed();
if (mFalsingManager.shouldEnforceBouncer()) {
mPhoneStatusBar.executeRunnableDismissingKeyguard(null, null /* cancelAction */,
false /* dismissShade */, true /* afterKeyguardGone */, false /* deferred */);
}
}
public static void performDismiss(View v, NotificationGroupManager groupManager,
boolean fromAccessibility) {
if (!(v instanceof ExpandableNotificationRow)) {
return;
}
ExpandableNotificationRow row = (ExpandableNotificationRow) v;
if (groupManager.isOnlyChildInGroup(row.getStatusBarNotification())) {
ExpandableNotificationRow groupSummary =
groupManager.getLogicalGroupSummary(row.getStatusBarNotification());
if (groupSummary.isClearable()) {
performDismiss(groupSummary, groupManager, fromAccessibility);
}
}
row.setDismissed(true, fromAccessibility);
if (row.isClearable()) {
row.performDismiss();
}
if (DEBUG) Log.v(TAG, "onChildDismissed: " + v);
}
@Override
public void onChildSnappedBack(View animView, float targetLeft) {
mAmbientState.onDragFinished(animView);
updateContinuousShadowDrawing();
if (!mDragAnimPendingChildren.contains(animView)) {
if (mAnimationsEnabled) {
mSnappedBackChildren.add(animView);
mNeedsAnimation = true;
}
requestChildrenUpdate();
} else {
// We start the swipe and snap back in the same frame, we don't want any animation
mDragAnimPendingChildren.remove(animView);
}
if (mCurrIconRow != null && targetLeft == 0) {
mCurrIconRow.resetState();
mCurrIconRow = null;
}
}
@Override
public boolean updateSwipeProgress(View animView, boolean dismissable, float swipeProgress) {
if (!mIsExpanded && isPinnedHeadsUp(animView) && canChildBeDismissed(animView)) {
mScrimController.setTopHeadsUpDragAmount(animView,
Math.min(Math.abs(swipeProgress / 2f - 1.0f), 1.0f));
}
return true; // Don't fade out the notification
}
@Override
public void onBeginDrag(View v) {
mFalsingManager.onNotificatonStartDismissing();
setSwipingInProgress(true);
mAmbientState.onBeginDrag(v);
updateContinuousShadowDrawing();
if (mAnimationsEnabled && (mIsExpanded || !isPinnedHeadsUp(v))) {
mDragAnimPendingChildren.add(v);
mNeedsAnimation = true;
}
requestChildrenUpdate();
}
public static boolean isPinnedHeadsUp(View v) {
if (v instanceof ExpandableNotificationRow) {
ExpandableNotificationRow row = (ExpandableNotificationRow) v;
return row.isHeadsUp() && row.isPinned();
}
return false;
}
private boolean isHeadsUp(View v) {
if (v instanceof ExpandableNotificationRow) {
ExpandableNotificationRow row = (ExpandableNotificationRow) v;
return row.isHeadsUp();
}
return false;
}
@Override
public void onDragCancelled(View v) {
mFalsingManager.onNotificatonStopDismissing();
setSwipingInProgress(false);
}
@Override
public float getFalsingThresholdFactor() {
return mPhoneStatusBar.isWakeUpComingFromTouch() ? 1.5f : 1.0f;
}
@Override
public View getChildAtPosition(MotionEvent ev) {
View child = getChildAtPosition(ev.getX(), ev.getY());
if (child instanceof ExpandableNotificationRow) {
ExpandableNotificationRow row = (ExpandableNotificationRow) child;
ExpandableNotificationRow parent = row.getNotificationParent();
if (parent != null && parent.areChildrenExpanded()
&& (parent.areGutsExposed()
|| mGearExposedView == parent
|| (parent.getNotificationChildren().size() == 1
&& parent.isClearable()))) {
// In this case the group is expanded and showing the gear for the
// group, further interaction should apply to the group, not any
// child notifications so we use the parent of the child. We also do the same
// if we only have a single child.
child = parent;
}
}
return child;
}
public ExpandableView getClosestChildAtRawPosition(float touchX, float touchY) {
getLocationOnScreen(mTempInt2);
float localTouchY = touchY - mTempInt2[1];
ExpandableView closestChild = null;
float minDist = Float.MAX_VALUE;
// find the view closest to the location, accounting for GONE views
final int count = getChildCount();
for (int childIdx = 0; childIdx < count; childIdx++) {
ExpandableView slidingChild = (ExpandableView) getChildAt(childIdx);
if (slidingChild.getVisibility() == GONE
|| slidingChild instanceof StackScrollerDecorView) {
continue;
}
float childTop = slidingChild.getTranslationY();
float top = childTop + slidingChild.getClipTopAmount();
float bottom = childTop + slidingChild.getActualHeight();
float dist = Math.min(Math.abs(top - localTouchY), Math.abs(bottom - localTouchY));
if (dist < minDist) {
closestChild = slidingChild;
minDist = dist;
}
}
return closestChild;
}
@Override
public ExpandableView getChildAtRawPosition(float touchX, float touchY) {
getLocationOnScreen(mTempInt2);
return getChildAtPosition(touchX - mTempInt2[0], touchY - mTempInt2[1]);
}
@Override
public ExpandableView getChildAtPosition(float touchX, float touchY) {
// find the view under the pointer, accounting for GONE views
final int count = getChildCount();
for (int childIdx = 0; childIdx < count; childIdx++) {
ExpandableView slidingChild = (ExpandableView) getChildAt(childIdx);
if (slidingChild.getVisibility() == GONE
|| slidingChild instanceof StackScrollerDecorView) {
continue;
}
float childTop = slidingChild.getTranslationY();
float top = childTop + slidingChild.getClipTopAmount();
float bottom = childTop + slidingChild.getActualHeight();
// Allow the full width of this view to prevent gesture conflict on Keyguard (phone and
// camera affordance).
int left = 0;
int right = getWidth();
if (touchY >= top && touchY <= bottom && touchX >= left && touchX <= right) {
if (slidingChild instanceof ExpandableNotificationRow) {
ExpandableNotificationRow row = (ExpandableNotificationRow) slidingChild;
if (!mIsExpanded && row.isHeadsUp() && row.isPinned()
&& mHeadsUpManager.getTopEntry().entry.row != row
&& mGroupManager.getGroupSummary(
mHeadsUpManager.getTopEntry().entry.row.getStatusBarNotification())
!= row) {
continue;
}
return row.getViewAtPosition(touchY - childTop);
}
return slidingChild;
}
}
return null;
}
@Override
public boolean canChildBeExpanded(View v) {
return v instanceof ExpandableNotificationRow
&& ((ExpandableNotificationRow) v).isExpandable()
&& !((ExpandableNotificationRow) v).areGutsExposed()
&& (mIsExpanded || !((ExpandableNotificationRow) v).isPinned());
}
/* Only ever called as a consequence of an expansion gesture in the shade. */
@Override
public void setUserExpandedChild(View v, boolean userExpanded) {
if (v instanceof ExpandableNotificationRow) {
ExpandableNotificationRow row = (ExpandableNotificationRow) v;
row.setUserExpanded(userExpanded, true /* allowChildrenExpansion */);
row.onExpandedByGesture(userExpanded);
}
}
@Override
public void setExpansionCancelled(View v) {
if (v instanceof ExpandableNotificationRow) {
((ExpandableNotificationRow) v).setGroupExpansionChanging(false);
}
}
@Override
public void setUserLockedChild(View v, boolean userLocked) {
if (v instanceof ExpandableNotificationRow) {
((ExpandableNotificationRow) v).setUserLocked(userLocked);
}
removeLongPressCallback();
requestDisallowInterceptTouchEvent(true);
}
@Override
public void expansionStateChanged(boolean isExpanding) {
mExpandingNotification = isExpanding;
if (!mExpandedInThisMotion) {
mMaxScrollAfterExpand = mOwnScrollY;
mExpandedInThisMotion = true;
}
}
@Override
public int getMaxExpandHeight(ExpandableView view) {
int maxContentHeight = view.getMaxContentHeight();
if (view.isSummaryWithChildren() && view.getParent() == this) {
// Faking a measure with the group expanded to simulate how the group would look if
// it was. Doing a calculation here would be highly non-trivial because of the
// algorithm
mGroupExpandedForMeasure = true;
ExpandableNotificationRow row = (ExpandableNotificationRow) view;
mGroupManager.toggleGroupExpansion(row.getStatusBarNotification());
row.setForceUnlocked(true);
mAmbientState.setLayoutHeight(mMaxLayoutHeight);
mStackScrollAlgorithm.getStackScrollState(mAmbientState, mCurrentStackScrollState);
mAmbientState.setLayoutHeight(getLayoutHeight());
mGroupManager.toggleGroupExpansion(
row.getStatusBarNotification());
mGroupExpandedForMeasure = false;
row.setForceUnlocked(false);
StackViewState viewState = mCurrentStackScrollState.getViewStateForView(view);
if (viewState != null) {
// The view could have been removed
return Math.min(viewState.height, maxContentHeight);
}
}
return maxContentHeight;
}
public void setScrollingEnabled(boolean enable) {
mScrollingEnabled = enable;
}
@Override
public void lockScrollTo(View v) {
if (mForcedScroll == v) {
return;
}
mForcedScroll = v;
scrollTo(v);
}
@Override
public boolean scrollTo(View v) {
ExpandableView expandableView = (ExpandableView) v;
int positionInLinearLayout = getPositionInLinearLayout(v);
int targetScroll = targetScrollForView(expandableView, positionInLinearLayout);
int outOfViewScroll = positionInLinearLayout + expandableView.getIntrinsicHeight();
// Only apply the scroll if we're scrolling the view upwards, or the view is so far up
// that it is not visible anymore.
if (mOwnScrollY < targetScroll || outOfViewScroll < mOwnScrollY) {
mScroller.startScroll(mScrollX, mOwnScrollY, 0, targetScroll - mOwnScrollY);
mDontReportNextOverScroll = true;
postInvalidateOnAnimation();
return true;
}
return false;
}
/**
* @return the scroll necessary to make the bottom edge of {@param v} align with the top of
* the IME.
*/
private int targetScrollForView(ExpandableView v, int positionInLinearLayout) {
return positionInLinearLayout + v.getIntrinsicHeight() +
getImeInset() - getHeight() + getTopPadding();
}
@Override
public WindowInsets onApplyWindowInsets(WindowInsets insets) {
mBottomInset = insets.getSystemWindowInsetBottom();
int range = getScrollRange();
if (mOwnScrollY > range) {
// HACK: We're repeatedly getting staggered insets here while the IME is
// animating away. To work around that we'll wait until things have settled.
removeCallbacks(mReclamp);
postDelayed(mReclamp, 50);
} else if (mForcedScroll != null) {
// The scroll was requested before we got the actual inset - in case we need
// to scroll up some more do so now.
scrollTo(mForcedScroll);
}
return insets;
}
private Runnable mReclamp = new Runnable() {
@Override
public void run() {
int range = getScrollRange();
mScroller.startScroll(mScrollX, mOwnScrollY, 0, range - mOwnScrollY);
mDontReportNextOverScroll = true;
mDontClampNextScroll = true;
postInvalidateOnAnimation();
}
};
public void setExpandingEnabled(boolean enable) {
mExpandHelper.setEnabled(enable);
}
private boolean isScrollingEnabled() {
return mScrollingEnabled;
}
@Override
public boolean canChildBeDismissed(View v) {
return StackScrollAlgorithm.canChildBeDismissed(v);
}
@Override
public boolean isAntiFalsingNeeded() {
return onKeyguard();
}
private boolean onKeyguard() {
return mPhoneStatusBar.getBarState() == StatusBarState.KEYGUARD;
}
private void setSwipingInProgress(boolean isSwiped) {
mSwipingInProgress = isSwiped;
if(isSwiped) {
requestDisallowInterceptTouchEvent(true);
}
}
@Override
protected void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
float densityScale = getResources().getDisplayMetrics().density;
mSwipeHelper.setDensityScale(densityScale);
float pagingTouchSlop = ViewConfiguration.get(getContext()).getScaledPagingTouchSlop();
mSwipeHelper.setPagingTouchSlop(pagingTouchSlop);
initView(getContext());
}
public void dismissViewAnimated(View child, Runnable endRunnable, int delay, long duration) {
mSwipeHelper.dismissChild(child, 0, endRunnable, delay, true, duration,
true /* isDismissAll */);
}
public void snapViewIfNeeded(ExpandableNotificationRow child) {
boolean animate = mIsExpanded || isPinnedHeadsUp(child);
// If the child is showing the gear to go to settings, snap to that
float targetLeft = child.getSettingsRow().isVisible() ? child.getTranslation() : 0;
mSwipeHelper.snapChildIfNeeded(child, animate, targetLeft);
}
@Override
public boolean onTouchEvent(MotionEvent ev) {
boolean isCancelOrUp = ev.getActionMasked() == MotionEvent.ACTION_CANCEL
|| ev.getActionMasked()== MotionEvent.ACTION_UP;
handleEmptySpaceClick(ev);
boolean expandWantsIt = false;
if (mIsExpanded && !mSwipingInProgress && !mOnlyScrollingInThisMotion) {
if (isCancelOrUp) {
mExpandHelper.onlyObserveMovements(false);
}
boolean wasExpandingBefore = mExpandingNotification;
expandWantsIt = mExpandHelper.onTouchEvent(ev);
if (mExpandedInThisMotion && !mExpandingNotification && wasExpandingBefore
&& !mDisallowScrollingInThisMotion) {
dispatchDownEventToScroller(ev);
}
}
boolean scrollerWantsIt = false;
if (mIsExpanded && !mSwipingInProgress && !mExpandingNotification
&& !mDisallowScrollingInThisMotion) {
scrollerWantsIt = onScrollTouch(ev);
}
boolean horizontalSwipeWantsIt = false;
if (!mIsBeingDragged
&& !mExpandingNotification
&& !mExpandedInThisMotion
&& !mOnlyScrollingInThisMotion
&& !mDisallowDismissInThisMotion) {
horizontalSwipeWantsIt = mSwipeHelper.onTouchEvent(ev);
}
return horizontalSwipeWantsIt || scrollerWantsIt || expandWantsIt || super.onTouchEvent(ev);
}
private void dispatchDownEventToScroller(MotionEvent ev) {
MotionEvent downEvent = MotionEvent.obtain(ev);
downEvent.setAction(MotionEvent.ACTION_DOWN);
onScrollTouch(downEvent);
downEvent.recycle();
}
private boolean onScrollTouch(MotionEvent ev) {
if (!isScrollingEnabled()) {
return false;
}
if (ev.getY() < mQsContainer.getBottom() && !mIsBeingDragged) {
return false;
}
mForcedScroll = null;
initVelocityTrackerIfNotExists();
mVelocityTracker.addMovement(ev);
final int action = ev.getAction();
switch (action & MotionEvent.ACTION_MASK) {
case MotionEvent.ACTION_DOWN: {
if (getChildCount() == 0 || !isInContentBounds(ev)) {
return false;
}
boolean isBeingDragged = !mScroller.isFinished();
setIsBeingDragged(isBeingDragged);
/*
* If being flinged and user touches, stop the fling. isFinished
* will be false if being flinged.
*/
if (!mScroller.isFinished()) {
mScroller.forceFinished(true);
}
// Remember where the motion event started
mLastMotionY = (int) ev.getY();
mDownX = (int) ev.getX();
mActivePointerId = ev.getPointerId(0);
break;
}
case MotionEvent.ACTION_MOVE:
final int activePointerIndex = ev.findPointerIndex(mActivePointerId);
if (activePointerIndex == -1) {
Log.e(TAG, "Invalid pointerId=" + mActivePointerId + " in onTouchEvent");
break;
}
final int y = (int) ev.getY(activePointerIndex);
final int x = (int) ev.getX(activePointerIndex);
int deltaY = mLastMotionY - y;
final int xDiff = Math.abs(x - mDownX);
final int yDiff = Math.abs(deltaY);
if (!mIsBeingDragged && yDiff > mTouchSlop && yDiff > xDiff) {
setIsBeingDragged(true);
if (deltaY > 0) {
deltaY -= mTouchSlop;
} else {
deltaY += mTouchSlop;
}
}
if (mIsBeingDragged) {
// Scroll to follow the motion event
mLastMotionY = y;
int range = getScrollRange();
if (mExpandedInThisMotion) {
range = Math.min(range, mMaxScrollAfterExpand);
}
float scrollAmount;
if (deltaY < 0) {
scrollAmount = overScrollDown(deltaY);
} else {
scrollAmount = overScrollUp(deltaY, range);
}
// Calling overScrollBy will call onOverScrolled, which
// calls onScrollChanged if applicable.
if (scrollAmount != 0.0f) {
// The scrolling motion could not be compensated with the
// existing overScroll, we have to scroll the view
overScrollBy(0, (int) scrollAmount, 0, mOwnScrollY,
0, range, 0, getHeight() / 2, true);
}
}
break;
case MotionEvent.ACTION_UP:
if (mIsBeingDragged) {
final VelocityTracker velocityTracker = mVelocityTracker;
velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity);
int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId);
if (shouldOverScrollFling(initialVelocity)) {
onOverScrollFling(true, initialVelocity);
} else {
if (getChildCount() > 0) {
if ((Math.abs(initialVelocity) > mMinimumVelocity)) {
float currentOverScrollTop = getCurrentOverScrollAmount(true);
if (currentOverScrollTop == 0.0f || initialVelocity > 0) {
fling(-initialVelocity);
} else {
onOverScrollFling(false, initialVelocity);
}
} else {
if (mScroller.springBack(mScrollX, mOwnScrollY, 0, 0, 0,
getScrollRange())) {
postInvalidateOnAnimation();
}
}
}
}
mActivePointerId = INVALID_POINTER;
endDrag();
}
break;
case MotionEvent.ACTION_CANCEL:
if (mIsBeingDragged && getChildCount() > 0) {
if (mScroller.springBack(mScrollX, mOwnScrollY, 0, 0, 0, getScrollRange())) {
postInvalidateOnAnimation();
}
mActivePointerId = INVALID_POINTER;
endDrag();
}
break;
case MotionEvent.ACTION_POINTER_DOWN: {
final int index = ev.getActionIndex();
mLastMotionY = (int) ev.getY(index);
mDownX = (int) ev.getX(index);
mActivePointerId = ev.getPointerId(index);
break;
}
case MotionEvent.ACTION_POINTER_UP:
onSecondaryPointerUp(ev);
mLastMotionY = (int) ev.getY(ev.findPointerIndex(mActivePointerId));
mDownX = (int) ev.getX(ev.findPointerIndex(mActivePointerId));
break;
}
return true;
}
private void onOverScrollFling(boolean open, int initialVelocity) {
if (mOverscrollTopChangedListener != null) {
mOverscrollTopChangedListener.flingTopOverscroll(initialVelocity, open);
}
mDontReportNextOverScroll = true;
setOverScrollAmount(0.0f, true, false);
}
/**
* Perform a scroll upwards and adapt the overscroll amounts accordingly
*
* @param deltaY The amount to scroll upwards, has to be positive.
* @return The amount of scrolling to be performed by the scroller,
* not handled by the overScroll amount.
*/
private float overScrollUp(int deltaY, int range) {
deltaY = Math.max(deltaY, 0);
float currentTopAmount = getCurrentOverScrollAmount(true);
float newTopAmount = currentTopAmount - deltaY;
if (currentTopAmount > 0) {
setOverScrollAmount(newTopAmount, true /* onTop */,
false /* animate */);
}
// Top overScroll might not grab all scrolling motion,
// we have to scroll as well.
float scrollAmount = newTopAmount < 0 ? -newTopAmount : 0.0f;
float newScrollY = mOwnScrollY + scrollAmount;
if (newScrollY > range) {
if (!mExpandedInThisMotion) {
float currentBottomPixels = getCurrentOverScrolledPixels(false);
// We overScroll on the top
setOverScrolledPixels(currentBottomPixels + newScrollY - range,
false /* onTop */,
false /* animate */);
}
setOwnScrollY(range);
scrollAmount = 0.0f;
}
return scrollAmount;
}
/**
* Perform a scroll downward and adapt the overscroll amounts accordingly
*
* @param deltaY The amount to scroll downwards, has to be negative.
* @return The amount of scrolling to be performed by the scroller,
* not handled by the overScroll amount.
*/
private float overScrollDown(int deltaY) {
deltaY = Math.min(deltaY, 0);
float currentBottomAmount = getCurrentOverScrollAmount(false);
float newBottomAmount = currentBottomAmount + deltaY;
if (currentBottomAmount > 0) {
setOverScrollAmount(newBottomAmount, false /* onTop */,
false /* animate */);
}
// Bottom overScroll might not grab all scrolling motion,
// we have to scroll as well.
float scrollAmount = newBottomAmount < 0 ? newBottomAmount : 0.0f;
float newScrollY = mOwnScrollY + scrollAmount;
if (newScrollY < 0) {
float currentTopPixels = getCurrentOverScrolledPixels(true);
// We overScroll on the top
setOverScrolledPixels(currentTopPixels - newScrollY,
true /* onTop */,
false /* animate */);
setOwnScrollY(0);
scrollAmount = 0.0f;
}
return scrollAmount;
}
private void onSecondaryPointerUp(MotionEvent ev) {
final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >>
MotionEvent.ACTION_POINTER_INDEX_SHIFT;
final int pointerId = ev.getPointerId(pointerIndex);
if (pointerId == mActivePointerId) {
// This was our active pointer going up. Choose a new
// active pointer and adjust accordingly.
// TODO: Make this decision more intelligent.
final int newPointerIndex = pointerIndex == 0 ? 1 : 0;
mLastMotionY = (int) ev.getY(newPointerIndex);
mActivePointerId = ev.getPointerId(newPointerIndex);
if (mVelocityTracker != null) {
mVelocityTracker.clear();
}
}
}
private void initVelocityTrackerIfNotExists() {
if (mVelocityTracker == null) {
mVelocityTracker = VelocityTracker.obtain();
}
}
private void recycleVelocityTracker() {
if (mVelocityTracker != null) {
mVelocityTracker.recycle();
mVelocityTracker = null;
}
}
private void initOrResetVelocityTracker() {
if (mVelocityTracker == null) {
mVelocityTracker = VelocityTracker.obtain();
} else {
mVelocityTracker.clear();
}
}
public void setFinishScrollingCallback(Runnable runnable) {
mFinishScrollingCallback = runnable;
}
@Override
public void computeScroll() {
if (mScroller.computeScrollOffset()) {
// This is called at drawing time by ViewGroup.
int oldX = mScrollX;
int oldY = mOwnScrollY;
int x = mScroller.getCurrX();
int y = mScroller.getCurrY();
if (oldX != x || oldY != y) {
int range = getScrollRange();
if (y < 0 && oldY >= 0 || y > range && oldY <= range) {
float currVelocity = mScroller.getCurrVelocity();
if (currVelocity >= mMinimumVelocity) {
mMaxOverScroll = Math.abs(currVelocity) / 1000 * mOverflingDistance;
}
}
if (mDontClampNextScroll) {
range = Math.max(range, oldY);
}
overScrollBy(x - oldX, y - oldY, oldX, oldY, 0, range,
0, (int) (mMaxOverScroll), false);
onScrollChanged(mScrollX, mOwnScrollY, oldX, oldY);
}
// Keep on drawing until the animation has finished.
postInvalidateOnAnimation();
} else {
mDontClampNextScroll = false;
if (mFinishScrollingCallback != null) {
mFinishScrollingCallback.run();
}
}
}
@Override
protected boolean overScrollBy(int deltaX, int deltaY,
int scrollX, int scrollY,
int scrollRangeX, int scrollRangeY,
int maxOverScrollX, int maxOverScrollY,
boolean isTouchEvent) {
int newScrollY = scrollY + deltaY;
final int top = -maxOverScrollY;
final int bottom = maxOverScrollY + scrollRangeY;
boolean clampedY = false;
if (newScrollY > bottom) {
newScrollY = bottom;
clampedY = true;
} else if (newScrollY < top) {
newScrollY = top;
clampedY = true;
}
onOverScrolled(0, newScrollY, false, clampedY);
return clampedY;
}
/**
* Set the amount of overScrolled pixels which will force the view to apply a rubber-banded
* overscroll effect based on numPixels. By default this will also cancel animations on the
* same overScroll edge.
*
* @param numPixels The amount of pixels to overScroll by. These will be scaled according to
* the rubber-banding logic.
* @param onTop Should the effect be applied on top of the scroller.
* @param animate Should an animation be performed.
*/
public void setOverScrolledPixels(float numPixels, boolean onTop, boolean animate) {
setOverScrollAmount(numPixels * getRubberBandFactor(onTop), onTop, animate, true);
}
/**
* Set the effective overScroll amount which will be directly reflected in the layout.
* By default this will also cancel animations on the same overScroll edge.
*
* @param amount The amount to overScroll by.
* @param onTop Should the effect be applied on top of the scroller.
* @param animate Should an animation be performed.
*/
public void setOverScrollAmount(float amount, boolean onTop, boolean animate) {
setOverScrollAmount(amount, onTop, animate, true);
}
/**
* Set the effective overScroll amount which will be directly reflected in the layout.
*
* @param amount The amount to overScroll by.
* @param onTop Should the effect be applied on top of the scroller.
* @param animate Should an animation be performed.
* @param cancelAnimators Should running animations be cancelled.
*/
public void setOverScrollAmount(float amount, boolean onTop, boolean animate,
boolean cancelAnimators) {
setOverScrollAmount(amount, onTop, animate, cancelAnimators, isRubberbanded(onTop));
}
/**
* Set the effective overScroll amount which will be directly reflected in the layout.
*
* @param amount The amount to overScroll by.
* @param onTop Should the effect be applied on top of the scroller.
* @param animate Should an animation be performed.
* @param cancelAnimators Should running animations be cancelled.
* @param isRubberbanded The value which will be passed to
* {@link OnOverscrollTopChangedListener#onOverscrollTopChanged}
*/
public void setOverScrollAmount(float amount, boolean onTop, boolean animate,
boolean cancelAnimators, boolean isRubberbanded) {
if (cancelAnimators) {
mStateAnimator.cancelOverScrollAnimators(onTop);
}
setOverScrollAmountInternal(amount, onTop, animate, isRubberbanded);
}
private void setOverScrollAmountInternal(float amount, boolean onTop, boolean animate,
boolean isRubberbanded) {
amount = Math.max(0, amount);
if (animate) {
mStateAnimator.animateOverScrollToAmount(amount, onTop, isRubberbanded);
} else {
setOverScrolledPixels(amount / getRubberBandFactor(onTop), onTop);
mAmbientState.setOverScrollAmount(amount, onTop);
if (onTop) {
notifyOverscrollTopListener(amount, isRubberbanded);
}
requestChildrenUpdate();
}
}
private void notifyOverscrollTopListener(float amount, boolean isRubberbanded) {
mExpandHelper.onlyObserveMovements(amount > 1.0f);
if (mDontReportNextOverScroll) {
mDontReportNextOverScroll = false;
return;
}
if (mOverscrollTopChangedListener != null) {
mOverscrollTopChangedListener.onOverscrollTopChanged(amount, isRubberbanded);
}
}
public void setOverscrollTopChangedListener(
OnOverscrollTopChangedListener overscrollTopChangedListener) {
mOverscrollTopChangedListener = overscrollTopChangedListener;
}
public float getCurrentOverScrollAmount(boolean top) {
return mAmbientState.getOverScrollAmount(top);
}
public float getCurrentOverScrolledPixels(boolean top) {
return top? mOverScrolledTopPixels : mOverScrolledBottomPixels;
}
private void setOverScrolledPixels(float amount, boolean onTop) {
if (onTop) {
mOverScrolledTopPixels = amount;
} else {
mOverScrolledBottomPixels = amount;
}
}
private void customScrollTo(int y) {
setOwnScrollY(y);
updateChildren();
}
@Override
protected void onOverScrolled(int scrollX, int scrollY, boolean clampedX, boolean clampedY) {
// Treat animating scrolls differently; see #computeScroll() for why.
if (!mScroller.isFinished()) {
final int oldX = mScrollX;
final int oldY = mOwnScrollY;
mScrollX = scrollX;
setOwnScrollY(scrollY);
if (clampedY) {
springBack();
} else {
onScrollChanged(mScrollX, mOwnScrollY, oldX, oldY);
invalidateParentIfNeeded();
updateChildren();
float overScrollTop = getCurrentOverScrollAmount(true);
if (mOwnScrollY < 0) {
notifyOverscrollTopListener(-mOwnScrollY, isRubberbanded(true));
} else {
notifyOverscrollTopListener(overScrollTop, isRubberbanded(true));
}
}
} else {
customScrollTo(scrollY);
scrollTo(scrollX, mScrollY);
}
}
private void springBack() {
int scrollRange = getScrollRange();
boolean overScrolledTop = mOwnScrollY <= 0;
boolean overScrolledBottom = mOwnScrollY >= scrollRange;
if (overScrolledTop || overScrolledBottom) {
boolean onTop;
float newAmount;
if (overScrolledTop) {
onTop = true;
newAmount = -mOwnScrollY;
setOwnScrollY(0);
mDontReportNextOverScroll = true;
} else {
onTop = false;
newAmount = mOwnScrollY - scrollRange;
setOwnScrollY(scrollRange);
}
setOverScrollAmount(newAmount, onTop, false);
setOverScrollAmount(0.0f, onTop, true);
mScroller.forceFinished(true);
}
}
private int getScrollRange() {
int contentHeight = getContentHeight();
int scrollRange = Math.max(0, contentHeight - mMaxLayoutHeight + mBottomStackPeekSize
+ mBottomStackSlowDownHeight);
int imeInset = getImeInset();
scrollRange += Math.min(imeInset, Math.max(0,
getContentHeight() - (getHeight() - imeInset)));
return scrollRange;
}
private int getImeInset() {
return Math.max(0, mBottomInset - (getRootView().getHeight() - getHeight()));
}
/**
* @return the first child which has visibility unequal to GONE
*/
public ExpandableView getFirstChildNotGone() {
int childCount = getChildCount();
for (int i = 0; i < childCount; i++) {
View child = getChildAt(i);
if (child.getVisibility() != View.GONE) {
return (ExpandableView) child;
}
}
return null;
}
/**
* @return the child before the given view which has visibility unequal to GONE
*/
public ExpandableView getViewBeforeView(ExpandableView view) {
ExpandableView previousView = null;
int childCount = getChildCount();
for (int i = 0; i < childCount; i++) {
View child = getChildAt(i);
if (child == view) {
return previousView;
}
if (child.getVisibility() != View.GONE) {
previousView = (ExpandableView) child;
}
}
return null;
}
/**
* @return The first child which has visibility unequal to GONE which is currently below the
* given translationY or equal to it.
*/
private View getFirstChildBelowTranlsationY(float translationY) {
int childCount = getChildCount();
for (int i = 0; i < childCount; i++) {
View child = getChildAt(i);
if (child.getVisibility() != View.GONE && child.getTranslationY() >= translationY) {
return child;
}
}
return null;
}
/**
* @return the last child which has visibility unequal to GONE
*/
public View getLastChildNotGone() {
int childCount = getChildCount();
for (int i = childCount - 1; i >= 0; i--) {
View child = getChildAt(i);
if (child.getVisibility() != View.GONE) {
return child;
}
}
return null;
}
/**
* @return the number of children which have visibility unequal to GONE
*/
public int getNotGoneChildCount() {
int childCount = getChildCount();
int count = 0;
for (int i = 0; i < childCount; i++) {
ExpandableView child = (ExpandableView) getChildAt(i);
if (child.getVisibility() != View.GONE && !child.willBeGone()) {
count++;
}
}
return count;
}
public int getContentHeight() {
return mContentHeight;
}
private void updateContentHeight() {
int height = 0;
float previousIncreasedAmount = 0.0f;
for (int i = 0; i < getChildCount(); i++) {
ExpandableView expandableView = (ExpandableView) getChildAt(i);
if (expandableView.getVisibility() != View.GONE) {
float increasedPaddingAmount = expandableView.getIncreasedPaddingAmount();
if (height != 0) {
height += (int) NotificationUtils.interpolate(
mPaddingBetweenElements,
mIncreasedPaddingBetweenElements,
Math.max(previousIncreasedAmount, increasedPaddingAmount));
}
previousIncreasedAmount = increasedPaddingAmount;
height += expandableView.getIntrinsicHeight();
}
}
mContentHeight = height + mTopPadding;
updateScrollability();
}
private void updateScrollability() {
boolean scrollable = getScrollRange() > 0;
if (scrollable != mScrollable) {
mScrollable = scrollable;
setFocusable(scrollable);
updateForwardAndBackwardScrollability();
}
}
private void updateForwardAndBackwardScrollability() {
boolean forwardScrollable = mScrollable && mOwnScrollY < getScrollRange();
boolean backwardsScrollable = mScrollable && mOwnScrollY > 0;
boolean changed = forwardScrollable != mForwardScrollable
|| backwardsScrollable != mBackwardScrollable;
mForwardScrollable = forwardScrollable;
mBackwardScrollable = backwardsScrollable;
if (changed) {
sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED);
}
}
private void updateBackground() {
if (mAmbientState.isDark()) {
return;
}
updateBackgroundBounds();
if (!mCurrentBounds.equals(mBackgroundBounds)) {
boolean animate = mAnimateNextBackgroundTop || mAnimateNextBackgroundBottom
|| areBoundsAnimating();
if (!isExpanded()) {
abortBackgroundAnimators();
animate = false;
}
if (animate) {
startBackgroundAnimation();
} else {
mCurrentBounds.set(mBackgroundBounds);
applyCurrentBackgroundBounds();
}
} else {
abortBackgroundAnimators();
}
mAnimateNextBackgroundBottom = false;
mAnimateNextBackgroundTop = false;
}
private void abortBackgroundAnimators() {
if (mBottomAnimator != null) {
mBottomAnimator.cancel();
}
if (mTopAnimator != null) {
mTopAnimator.cancel();
}
}
private boolean areBoundsAnimating() {
return mBottomAnimator != null || mTopAnimator != null;
}
private void startBackgroundAnimation() {
// left and right are always instantly applied
mCurrentBounds.left = mBackgroundBounds.left;
mCurrentBounds.right = mBackgroundBounds.right;
startBottomAnimation();
startTopAnimation();
}
private void startTopAnimation() {
int previousEndValue = mEndAnimationRect.top;
int newEndValue = mBackgroundBounds.top;
ObjectAnimator previousAnimator = mTopAnimator;
if (previousAnimator != null && previousEndValue == newEndValue) {
return;
}
if (!mAnimateNextBackgroundTop) {
// just a local update was performed
if (previousAnimator != null) {
// we need to increase all animation keyframes of the previous animator by the
// relative change to the end value
int previousStartValue = mStartAnimationRect.top;
PropertyValuesHolder[] values = previousAnimator.getValues();
values[0].setIntValues(previousStartValue, newEndValue);
mStartAnimationRect.top = previousStartValue;
mEndAnimationRect.top = newEndValue;
previousAnimator.setCurrentPlayTime(previousAnimator.getCurrentPlayTime());
return;
} else {
// no new animation needed, let's just apply the value
setBackgroundTop(newEndValue);
return;
}
}
if (previousAnimator != null) {
previousAnimator.cancel();
}
ObjectAnimator animator = ObjectAnimator.ofInt(this, "backgroundTop",
mCurrentBounds.top, newEndValue);
Interpolator interpolator = Interpolators.FAST_OUT_SLOW_IN;
animator.setInterpolator(interpolator);
animator.setDuration(StackStateAnimator.ANIMATION_DURATION_STANDARD);
// remove the tag when the animation is finished
animator.addListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
mStartAnimationRect.top = -1;
mEndAnimationRect.top = -1;
mTopAnimator = null;
}
});
animator.start();
mStartAnimationRect.top = mCurrentBounds.top;
mEndAnimationRect.top = newEndValue;
mTopAnimator = animator;
}
private void startBottomAnimation() {
int previousStartValue = mStartAnimationRect.bottom;
int previousEndValue = mEndAnimationRect.bottom;
int newEndValue = mBackgroundBounds.bottom;
ObjectAnimator previousAnimator = mBottomAnimator;
if (previousAnimator != null && previousEndValue == newEndValue) {
return;
}
if (!mAnimateNextBackgroundBottom) {
// just a local update was performed
if (previousAnimator != null) {
// we need to increase all animation keyframes of the previous animator by the
// relative change to the end value
PropertyValuesHolder[] values = previousAnimator.getValues();
values[0].setIntValues(previousStartValue, newEndValue);
mStartAnimationRect.bottom = previousStartValue;
mEndAnimationRect.bottom = newEndValue;
previousAnimator.setCurrentPlayTime(previousAnimator.getCurrentPlayTime());
return;
} else {
// no new animation needed, let's just apply the value
setBackgroundBottom(newEndValue);
return;
}
}
if (previousAnimator != null) {
previousAnimator.cancel();
}
ObjectAnimator animator = ObjectAnimator.ofInt(this, "backgroundBottom",
mCurrentBounds.bottom, newEndValue);
Interpolator interpolator = Interpolators.FAST_OUT_SLOW_IN;
animator.setInterpolator(interpolator);
animator.setDuration(StackStateAnimator.ANIMATION_DURATION_STANDARD);
// remove the tag when the animation is finished
animator.addListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
mStartAnimationRect.bottom = -1;
mEndAnimationRect.bottom = -1;
mBottomAnimator = null;
}
});
animator.start();
mStartAnimationRect.bottom = mCurrentBounds.bottom;
mEndAnimationRect.bottom = newEndValue;
mBottomAnimator = animator;
}
private void setBackgroundTop(int top) {
mCurrentBounds.top = top;
applyCurrentBackgroundBounds();
}
public void setBackgroundBottom(int bottom) {
mCurrentBounds.bottom = bottom;
applyCurrentBackgroundBounds();
}
private void applyCurrentBackgroundBounds() {
mScrimController.setExcludedBackgroundArea(
mFadingOut || mParentFadingOut || mAmbientState.isDark() ? null
: mCurrentBounds);
invalidate();
}
/**
* Update the background bounds to the new desired bounds
*/
private void updateBackgroundBounds() {
mBackgroundBounds.left = (int) getX();
mBackgroundBounds.right = (int) (getX() + getWidth());
if (!mIsExpanded) {
mBackgroundBounds.top = 0;
mBackgroundBounds.bottom = 0;
return;
}
ActivatableNotificationView firstView = mFirstVisibleBackgroundChild;
int top = 0;
if (firstView != null) {
int finalTranslationY = (int) StackStateAnimator.getFinalTranslationY(firstView);
if (mAnimateNextBackgroundTop
|| mTopAnimator == null && mCurrentBounds.top == finalTranslationY
|| mTopAnimator != null && mEndAnimationRect.top == finalTranslationY) {
// we're ending up at the same location as we are now, lets just skip the animation
top = finalTranslationY;
} else {
top = (int) firstView.getTranslationY();
}
}
ActivatableNotificationView lastView = mLastVisibleBackgroundChild;
int bottom = 0;
if (lastView != null) {
int finalTranslationY = (int) StackStateAnimator.getFinalTranslationY(lastView);
int finalHeight = StackStateAnimator.getFinalActualHeight(lastView);
int finalBottom = finalTranslationY + finalHeight;
finalBottom = Math.min(finalBottom, getHeight());
if (mAnimateNextBackgroundBottom
|| mBottomAnimator == null && mCurrentBounds.bottom == finalBottom
|| mBottomAnimator != null && mEndAnimationRect.bottom == finalBottom) {
// we're ending up at the same location as we are now, lets just skip the animation
bottom = finalBottom;
} else {
bottom = (int) (lastView.getTranslationY() + lastView.getActualHeight());
bottom = Math.min(bottom, getHeight());
}
} else {
top = mTopPadding;
bottom = top;
}
if (mPhoneStatusBar.getBarState() != StatusBarState.KEYGUARD) {
top = (int) Math.max(mTopPadding + mStackTranslation, top);
} else {
// otherwise the animation from the shade to the keyguard will jump as it's maxed
top = Math.max(0, top);
}
mBackgroundBounds.top = top;
mBackgroundBounds.bottom = Math.min(getHeight(), Math.max(bottom, top));
}
private ActivatableNotificationView getFirstPinnedHeadsUp() {
int childCount = getChildCount();
for (int i = 0; i < childCount; i++) {
View child = getChildAt(i);
if (child.getVisibility() != View.GONE
&& child instanceof ExpandableNotificationRow) {
ExpandableNotificationRow row = (ExpandableNotificationRow) child;
if (row.isPinned()) {
return row;
}
}
}
return null;
}
private ActivatableNotificationView getLastChildWithBackground() {
int childCount = getChildCount();
for (int i = childCount - 1; i >= 0; i--) {
View child = getChildAt(i);
if (child.getVisibility() != View.GONE
&& child instanceof ActivatableNotificationView) {
return (ActivatableNotificationView) child;
}
}
return null;
}
private ActivatableNotificationView getFirstChildWithBackground() {
int childCount = getChildCount();
for (int i = 0; i < childCount; i++) {
View child = getChildAt(i);
if (child.getVisibility() != View.GONE
&& child instanceof ActivatableNotificationView) {
return (ActivatableNotificationView) child;
}
}
return null;
}
/**
* Fling the scroll view
*
* @param velocityY The initial velocity in the Y direction. Positive
* numbers mean that the finger/cursor is moving down the screen,
* which means we want to scroll towards the top.
*/
private void fling(int velocityY) {
if (getChildCount() > 0) {
int scrollRange = getScrollRange();
float topAmount = getCurrentOverScrollAmount(true);
float bottomAmount = getCurrentOverScrollAmount(false);
if (velocityY < 0 && topAmount > 0) {
setOwnScrollY(mOwnScrollY - (int) topAmount);
mDontReportNextOverScroll = true;
setOverScrollAmount(0, true, false);
mMaxOverScroll = Math.abs(velocityY) / 1000f * getRubberBandFactor(true /* onTop */)
* mOverflingDistance + topAmount;
} else if (velocityY > 0 && bottomAmount > 0) {
setOwnScrollY((int) (mOwnScrollY + bottomAmount));
setOverScrollAmount(0, false, false);
mMaxOverScroll = Math.abs(velocityY) / 1000f
* getRubberBandFactor(false /* onTop */) * mOverflingDistance
+ bottomAmount;
} else {
// it will be set once we reach the boundary
mMaxOverScroll = 0.0f;
}
int minScrollY = Math.max(0, scrollRange);
if (mExpandedInThisMotion) {
minScrollY = Math.min(minScrollY, mMaxScrollAfterExpand);
}
mScroller.fling(mScrollX, mOwnScrollY, 1, velocityY, 0, 0, 0,
minScrollY, 0, mExpandedInThisMotion && mOwnScrollY >= 0 ? 0 : Integer.MAX_VALUE / 2);
postInvalidateOnAnimation();
}
}
/**
* @return Whether a fling performed on the top overscroll edge lead to the expanded
* overScroll view (i.e QS).
*/
private boolean shouldOverScrollFling(int initialVelocity) {
float topOverScroll = getCurrentOverScrollAmount(true);
return mScrolledToTopOnFirstDown
&& !mExpandedInThisMotion
&& topOverScroll > mMinTopOverScrollToEscape
&& initialVelocity > 0;
}
/**
* Updates the top padding of the notifications, taking {@link #getIntrinsicPadding()} into
* account.
*
* @param qsHeight the top padding imposed by the quick settings panel
* @param animate whether to animate the change
* @param ignoreIntrinsicPadding if true, {@link #getIntrinsicPadding()} is ignored and
* {@code qsHeight} is the final top padding
*/
public void updateTopPadding(float qsHeight, boolean animate,
boolean ignoreIntrinsicPadding) {
int topPadding = (int) qsHeight;
int minStackHeight = getLayoutMinHeight();
if (topPadding + minStackHeight > getHeight()) {
mTopPaddingOverflow = topPadding + minStackHeight - getHeight();
} else {
mTopPaddingOverflow = 0;
}
setTopPadding(ignoreIntrinsicPadding ? topPadding : clampPadding(topPadding),
animate);
setExpandedHeight(mExpandedHeight);
}
public int getLayoutMinHeight() {
int firstChildMinHeight = getFirstChildIntrinsicHeight();
return Math.min(firstChildMinHeight + mBottomStackPeekSize + mBottomStackSlowDownHeight,
mMaxLayoutHeight - mIntrinsicPadding);
}
public int getFirstChildIntrinsicHeight() {
final ExpandableView firstChild = getFirstChildNotGone();
int firstChildMinHeight = firstChild != null
? firstChild.getIntrinsicHeight()
: mEmptyShadeView != null
? mEmptyShadeView.getIntrinsicHeight()
: mCollapsedSize;
if (mOwnScrollY > 0) {
firstChildMinHeight = Math.max(firstChildMinHeight - mOwnScrollY, mCollapsedSize);
}
return firstChildMinHeight;
}
public float getTopPaddingOverflow() {
return mTopPaddingOverflow;
}
public int getPeekHeight() {
final ExpandableView firstChild = getFirstChildNotGone();
final int firstChildMinHeight = firstChild != null ? firstChild.getCollapsedHeight()
: mCollapsedSize;
return mIntrinsicPadding + firstChildMinHeight + mBottomStackPeekSize
+ mBottomStackSlowDownHeight;
}
private int clampPadding(int desiredPadding) {
return Math.max(desiredPadding, mIntrinsicPadding);
}
private float getRubberBandFactor(boolean onTop) {
if (!onTop) {
return RUBBER_BAND_FACTOR_NORMAL;
}
if (mExpandedInThisMotion) {
return RUBBER_BAND_FACTOR_AFTER_EXPAND;
} else if (mIsExpansionChanging || mPanelTracking) {
return RUBBER_BAND_FACTOR_ON_PANEL_EXPAND;
} else if (mScrolledToTopOnFirstDown) {
return 1.0f;
}
return RUBBER_BAND_FACTOR_NORMAL;
}
/**
* Accompanying function for {@link #getRubberBandFactor}: Returns true if the overscroll is
* rubberbanded, false if it is technically an overscroll but rather a motion to expand the
* overscroll view (e.g. expand QS).
*/
private boolean isRubberbanded(boolean onTop) {
return !onTop || mExpandedInThisMotion || mIsExpansionChanging || mPanelTracking
|| !mScrolledToTopOnFirstDown;
}
private void endDrag() {
setIsBeingDragged(false);
recycleVelocityTracker();
if (getCurrentOverScrollAmount(true /* onTop */) > 0) {
setOverScrollAmount(0, true /* onTop */, true /* animate */);
}
if (getCurrentOverScrollAmount(false /* onTop */) > 0) {
setOverScrollAmount(0, false /* onTop */, true /* animate */);
}
}
private void transformTouchEvent(MotionEvent ev, View sourceView, View targetView) {
ev.offsetLocation(sourceView.getX(), sourceView.getY());
ev.offsetLocation(-targetView.getX(), -targetView.getY());
}
@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
initDownStates(ev);
handleEmptySpaceClick(ev);
boolean expandWantsIt = false;
if (!mSwipingInProgress && !mOnlyScrollingInThisMotion) {
expandWantsIt = mExpandHelper.onInterceptTouchEvent(ev);
}
boolean scrollWantsIt = false;
if (!mSwipingInProgress && !mExpandingNotification) {
scrollWantsIt = onInterceptTouchEventScroll(ev);
}
boolean swipeWantsIt = false;
if (!mIsBeingDragged
&& !mExpandingNotification
&& !mExpandedInThisMotion
&& !mOnlyScrollingInThisMotion
&& !mDisallowDismissInThisMotion) {
swipeWantsIt = mSwipeHelper.onInterceptTouchEvent(ev);
}
return swipeWantsIt || scrollWantsIt || expandWantsIt || super.onInterceptTouchEvent(ev);
}
private void handleEmptySpaceClick(MotionEvent ev) {
switch (ev.getActionMasked()) {
case MotionEvent.ACTION_MOVE:
if (mTouchIsClick && (Math.abs(ev.getY() - mInitialTouchY) > mTouchSlop
|| Math.abs(ev.getX() - mInitialTouchX) > mTouchSlop )) {
mTouchIsClick = false;
}
break;
case MotionEvent.ACTION_UP:
if (mPhoneStatusBar.getBarState() != StatusBarState.KEYGUARD && mTouchIsClick &&
isBelowLastNotification(mInitialTouchX, mInitialTouchY)) {
mOnEmptySpaceClickListener.onEmptySpaceClicked(mInitialTouchX, mInitialTouchY);
}
break;
}
}
private void initDownStates(MotionEvent ev) {
if (ev.getAction() == MotionEvent.ACTION_DOWN) {
mExpandedInThisMotion = false;
mOnlyScrollingInThisMotion = !mScroller.isFinished();
mDisallowScrollingInThisMotion = false;
mDisallowDismissInThisMotion = false;
mTouchIsClick = true;
mInitialTouchX = ev.getX();
mInitialTouchY = ev.getY();
}
}
public void setChildTransferInProgress(boolean childTransferInProgress) {
mChildTransferInProgress = childTransferInProgress;
}
@Override
public void onViewRemoved(View child) {
super.onViewRemoved(child);
// we only call our internal methods if this is actually a removal and not just a
// notification which becomes a child notification
if (!mChildTransferInProgress) {
onViewRemovedInternal(child, this);
}
}
@Override
public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) {
super.requestDisallowInterceptTouchEvent(disallowIntercept);
if (disallowIntercept) {
mSwipeHelper.removeLongPressCallback();
}
}
private void onViewRemovedInternal(View child, ViewGroup container) {
if (mChangePositionInProgress) {
// This is only a position change, don't do anything special
return;
}
ExpandableView expandableView = (ExpandableView) child;
expandableView.setOnHeightChangedListener(null);
mCurrentStackScrollState.removeViewStateForView(child);
updateScrollStateForRemovedChild(expandableView);
boolean animationGenerated = generateRemoveAnimation(child);
if (animationGenerated) {
if (!mSwipedOutViews.contains(child)) {
container.getOverlay().add(child);
} else if (Math.abs(expandableView.getTranslation()) != expandableView.getWidth()) {
container.addTransientView(child, 0);
expandableView.setTransientContainer(container);
}
} else {
mSwipedOutViews.remove(child);
}
updateAnimationState(false, child);
// Make sure the clipRect we might have set is removed
expandableView.setClipTopAmount(0);
focusNextViewIfFocused(child);
}
private void focusNextViewIfFocused(View view) {
if (view instanceof ExpandableNotificationRow) {
ExpandableNotificationRow row = (ExpandableNotificationRow) view;
if (row.shouldRefocusOnDismiss()) {
View nextView = row.getChildAfterViewWhenDismissed();
if (nextView == null) {
View groupParentWhenDismissed = row.getGroupParentWhenDismissed();
nextView = getFirstChildBelowTranlsationY(groupParentWhenDismissed != null
? groupParentWhenDismissed.getTranslationY()
: view.getTranslationY());
}
if (nextView != null) {
nextView.requestAccessibilityFocus();
}
}
}
}
private boolean isChildInGroup(View child) {
return child instanceof ExpandableNotificationRow
&& mGroupManager.isChildInGroupWithSummary(
((ExpandableNotificationRow) child).getStatusBarNotification());
}
/**
* Generate a remove animation for a child view.
*
* @param child The view to generate the remove animation for.
* @return Whether an animation was generated.
*/
private boolean generateRemoveAnimation(View child) {
if (removeRemovedChildFromHeadsUpChangeAnimations(child)) {
mAddedHeadsUpChildren.remove(child);
return false;
}
if (isClickedHeadsUp(child)) {
// An animation is already running, add it to the Overlay
mClearOverlayViewsWhenFinished.add(child);
return true;
}
if (mIsExpanded && mAnimationsEnabled && !isChildInInvisibleGroup(child)) {
if (!mChildrenToAddAnimated.contains(child)) {
// Generate Animations
mChildrenToRemoveAnimated.add(child);
mNeedsAnimation = true;
return true;
} else {
mChildrenToAddAnimated.remove(child);
mFromMoreCardAdditions.remove(child);
return false;
}
}
return false;
}
private boolean isClickedHeadsUp(View child) {
return HeadsUpManager.isClickedHeadsUpNotification(child);
}
/**
* Remove a removed child view from the heads up animations if it was just added there
*
* @return whether any child was removed from the list to animate
*/
private boolean removeRemovedChildFromHeadsUpChangeAnimations(View child) {
boolean hasAddEvent = false;
for (Pair<ExpandableNotificationRow, Boolean> eventPair : mHeadsUpChangeAnimations) {
ExpandableNotificationRow row = eventPair.first;
boolean isHeadsUp = eventPair.second;
if (child == row) {
mTmpList.add(eventPair);
hasAddEvent |= isHeadsUp;
}
}
if (hasAddEvent) {
// This child was just added lets remove all events.
mHeadsUpChangeAnimations.removeAll(mTmpList);
((ExpandableNotificationRow ) child).setHeadsupDisappearRunning(false);
}
mTmpList.clear();
return hasAddEvent;
}
/**
* @param child the child to query
* @return whether a view is not a top level child but a child notification and that group is
* not expanded
*/
private boolean isChildInInvisibleGroup(View child) {
if (child instanceof ExpandableNotificationRow) {
ExpandableNotificationRow row = (ExpandableNotificationRow) child;
ExpandableNotificationRow groupSummary =
mGroupManager.getGroupSummary(row.getStatusBarNotification());
if (groupSummary != null && groupSummary != row) {
return row.getVisibility() == View.INVISIBLE;
}
}
return false;
}
/**
* Updates the scroll position when a child was removed
*
* @param removedChild the removed child
*/
private void updateScrollStateForRemovedChild(ExpandableView removedChild) {
int startingPosition = getPositionInLinearLayout(removedChild);
int padding = (int) NotificationUtils.interpolate(
mPaddingBetweenElements,
mIncreasedPaddingBetweenElements,
removedChild.getIncreasedPaddingAmount());
int childHeight = getIntrinsicHeight(removedChild) + padding;
int endPosition = startingPosition + childHeight;
if (endPosition <= mOwnScrollY) {
// This child is fully scrolled of the top, so we have to deduct its height from the
// scrollPosition
setOwnScrollY(mOwnScrollY - childHeight);
} else if (startingPosition < mOwnScrollY) {
// This child is currently being scrolled into, set the scroll position to the start of
// this child
setOwnScrollY(startingPosition);
}
}
private int getIntrinsicHeight(View view) {
if (view instanceof ExpandableView) {
ExpandableView expandableView = (ExpandableView) view;
return expandableView.getIntrinsicHeight();
}
return view.getHeight();
}
private int getPositionInLinearLayout(View requestedView) {
ExpandableNotificationRow childInGroup = null;
ExpandableNotificationRow requestedRow = null;
if (isChildInGroup(requestedView)) {
// We're asking for a child in a group. Calculate the position of the parent first,
// then within the parent.
childInGroup = (ExpandableNotificationRow) requestedView;
requestedView = requestedRow = childInGroup.getNotificationParent();
}
int position = 0;
float previousIncreasedAmount = 0.0f;
for (int i = 0; i < getChildCount(); i++) {
ExpandableView child = (ExpandableView) getChildAt(i);
boolean notGone = child.getVisibility() != View.GONE;
if (notGone) {
float increasedPaddingAmount = child.getIncreasedPaddingAmount();
if (position != 0) {
position += (int) NotificationUtils.interpolate(
mPaddingBetweenElements,
mIncreasedPaddingBetweenElements,
Math.max(previousIncreasedAmount, increasedPaddingAmount));
}
previousIncreasedAmount = increasedPaddingAmount;
}
if (child == requestedView) {
if (requestedRow != null) {
position += requestedRow.getPositionOfChild(childInGroup);
}
return position;
}
if (notGone) {
position += getIntrinsicHeight(child);
}
}
return 0;
}
@Override
public void onViewAdded(View child) {
super.onViewAdded(child);
onViewAddedInternal(child);
}
private void updateFirstAndLastBackgroundViews() {
ActivatableNotificationView firstChild = getFirstChildWithBackground();
ActivatableNotificationView lastChild = getLastChildWithBackground();
if (mAnimationsEnabled && mIsExpanded) {
mAnimateNextBackgroundTop = firstChild != mFirstVisibleBackgroundChild;
mAnimateNextBackgroundBottom = lastChild != mLastVisibleBackgroundChild;
} else {
mAnimateNextBackgroundTop = false;
mAnimateNextBackgroundBottom = false;
}
mFirstVisibleBackgroundChild = firstChild;
mLastVisibleBackgroundChild = lastChild;
}
private void onViewAddedInternal(View child) {
updateHideSensitiveForChild(child);
((ExpandableView) child).setOnHeightChangedListener(this);
generateAddAnimation(child, false /* fromMoreCard */);
updateAnimationState(child);
updateChronometerForChild(child);
}
private void updateHideSensitiveForChild(View child) {
if (child instanceof ExpandableView) {
ExpandableView expandableView = (ExpandableView) child;
expandableView.setHideSensitiveForIntrinsicHeight(mAmbientState.isHideSensitive());
}
}
public void notifyGroupChildRemoved(View row, ViewGroup childrenContainer) {
onViewRemovedInternal(row, childrenContainer);
}
public void notifyGroupChildAdded(View row) {
onViewAddedInternal(row);
}
public void setAnimationsEnabled(boolean animationsEnabled) {
mAnimationsEnabled = animationsEnabled;
updateNotificationAnimationStates();
}
private void updateNotificationAnimationStates() {
boolean running = mAnimationsEnabled || mPulsing;
int childCount = getChildCount();
for (int i = 0; i < childCount; i++) {
View child = getChildAt(i);
running &= mIsExpanded || isPinnedHeadsUp(child);
updateAnimationState(running, child);
}
}
private void updateAnimationState(View child) {
updateAnimationState((mAnimationsEnabled || mPulsing)
&& (mIsExpanded || isPinnedHeadsUp(child)), child);
}
private void updateAnimationState(boolean running, View child) {
if (child instanceof ExpandableNotificationRow) {
ExpandableNotificationRow row = (ExpandableNotificationRow) child;
row.setIconAnimationRunning(running);
}
}
public boolean isAddOrRemoveAnimationPending() {
return mNeedsAnimation
&& (!mChildrenToAddAnimated.isEmpty() || !mChildrenToRemoveAnimated.isEmpty());
}
/**
* Generate an animation for an added child view.
*
* @param child The view to be added.
* @param fromMoreCard Whether this add is coming from the "more" card on lockscreen.
*/
public void generateAddAnimation(View child, boolean fromMoreCard) {
if (mIsExpanded && mAnimationsEnabled && !mChangePositionInProgress) {
// Generate Animations
mChildrenToAddAnimated.add(child);
if (fromMoreCard) {
mFromMoreCardAdditions.add(child);
}
mNeedsAnimation = true;
}
if (isHeadsUp(child) && !mChangePositionInProgress) {
mAddedHeadsUpChildren.add(child);
mChildrenToAddAnimated.remove(child);
}
}
/**
* Change the position of child to a new location
*
* @param child the view to change the position for
* @param newIndex the new index
*/
public void changeViewPosition(View child, int newIndex) {
int currentIndex = indexOfChild(child);
if (child != null && child.getParent() == this && currentIndex != newIndex) {
mChangePositionInProgress = true;
((ExpandableView)child).setChangingPosition(true);
removeView(child);
addView(child, newIndex);
((ExpandableView)child).setChangingPosition(false);
mChangePositionInProgress = false;
if (mIsExpanded && mAnimationsEnabled && child.getVisibility() != View.GONE) {
mChildrenChangingPositions.add(child);
mNeedsAnimation = true;
}
}
}
private void startAnimationToState() {
if (mNeedsAnimation) {
generateChildHierarchyEvents();
mNeedsAnimation = false;
}
if (!mAnimationEvents.isEmpty() || isCurrentlyAnimating()) {
setAnimationRunning(true);
mStateAnimator.startAnimationForEvents(mAnimationEvents, mCurrentStackScrollState,
mGoToFullShadeDelay);
mAnimationEvents.clear();
updateBackground();
updateViewShadows();
} else {
applyCurrentState();
}
mGoToFullShadeDelay = 0;
}
private void generateChildHierarchyEvents() {
generateHeadsUpAnimationEvents();
generateChildRemovalEvents();
generateChildAdditionEvents();
generatePositionChangeEvents();
generateSnapBackEvents();
generateDragEvents();
generateTopPaddingEvent();
generateActivateEvent();
generateDimmedEvent();
generateHideSensitiveEvent();
generateDarkEvent();
generateGoToFullShadeEvent();
generateViewResizeEvent();
generateGroupExpansionEvent();
generateAnimateEverythingEvent();
mNeedsAnimation = false;
}
private void generateHeadsUpAnimationEvents() {
for (Pair<ExpandableNotificationRow, Boolean> eventPair : mHeadsUpChangeAnimations) {
ExpandableNotificationRow row = eventPair.first;
boolean isHeadsUp = eventPair.second;
int type = AnimationEvent.ANIMATION_TYPE_HEADS_UP_OTHER;
boolean onBottom = false;
boolean pinnedAndClosed = row.isPinned() && !mIsExpanded;
if (!mIsExpanded && !isHeadsUp) {
type = row.wasJustClicked()
? AnimationEvent.ANIMATION_TYPE_HEADS_UP_DISAPPEAR_CLICK
: AnimationEvent.ANIMATION_TYPE_HEADS_UP_DISAPPEAR;
if (row.isChildInGroup()) {
// We can otherwise get stuck in there if it was just isolated
row.setHeadsupDisappearRunning(false);
}
} else {
StackViewState viewState = mCurrentStackScrollState.getViewStateForView(row);
if (viewState == null) {
// A view state was never generated for this view, so we don't need to animate
// this. This may happen with notification children.
continue;
}
if (isHeadsUp && (mAddedHeadsUpChildren.contains(row) || pinnedAndClosed)) {
if (pinnedAndClosed || shouldHunAppearFromBottom(viewState)) {
// Our custom add animation
type = AnimationEvent.ANIMATION_TYPE_HEADS_UP_APPEAR;
} else {
// Normal add animation
type = AnimationEvent.ANIMATION_TYPE_ADD;
}
onBottom = !pinnedAndClosed;
}
}
AnimationEvent event = new AnimationEvent(row, type);
event.headsUpFromBottom = onBottom;
mAnimationEvents.add(event);
}
mHeadsUpChangeAnimations.clear();
mAddedHeadsUpChildren.clear();
}
private boolean shouldHunAppearFromBottom(StackViewState viewState) {
if (viewState.yTranslation + viewState.height < mAmbientState.getMaxHeadsUpTranslation()) {
return false;
}
return true;
}
private void generateGroupExpansionEvent() {
// Generate a group expansion/collapsing event if there is such a group at all
if (mExpandedGroupView != null) {
mAnimationEvents.add(new AnimationEvent(mExpandedGroupView,
AnimationEvent.ANIMATION_TYPE_GROUP_EXPANSION_CHANGED));
mExpandedGroupView = null;
}
}
private void generateViewResizeEvent() {
if (mNeedViewResizeAnimation) {
mAnimationEvents.add(
new AnimationEvent(null, AnimationEvent.ANIMATION_TYPE_VIEW_RESIZE));
}
mNeedViewResizeAnimation = false;
}
private void generateSnapBackEvents() {
for (View child : mSnappedBackChildren) {
mAnimationEvents.add(new AnimationEvent(child,
AnimationEvent.ANIMATION_TYPE_SNAP_BACK));
}
mSnappedBackChildren.clear();
}
private void generateDragEvents() {
for (View child : mDragAnimPendingChildren) {
mAnimationEvents.add(new AnimationEvent(child,
AnimationEvent.ANIMATION_TYPE_START_DRAG));
}
mDragAnimPendingChildren.clear();
}
private void generateChildRemovalEvents() {
for (View child : mChildrenToRemoveAnimated) {
boolean childWasSwipedOut = mSwipedOutViews.contains(child);
int animationType = childWasSwipedOut
? AnimationEvent.ANIMATION_TYPE_REMOVE_SWIPED_OUT
: AnimationEvent.ANIMATION_TYPE_REMOVE;
AnimationEvent event = new AnimationEvent(child, animationType);
// we need to know the view after this one
event.viewAfterChangingView = getFirstChildBelowTranlsationY(child.getTranslationY());
mAnimationEvents.add(event);
mSwipedOutViews.remove(child);
}
mChildrenToRemoveAnimated.clear();
}
private void generatePositionChangeEvents() {
for (View child : mChildrenChangingPositions) {
mAnimationEvents.add(new AnimationEvent(child,
AnimationEvent.ANIMATION_TYPE_CHANGE_POSITION));
}
mChildrenChangingPositions.clear();
if (mGenerateChildOrderChangedEvent) {
mAnimationEvents.add(new AnimationEvent(null,
AnimationEvent.ANIMATION_TYPE_CHANGE_POSITION));
mGenerateChildOrderChangedEvent = false;
}
}
private void generateChildAdditionEvents() {
for (View child : mChildrenToAddAnimated) {
if (mFromMoreCardAdditions.contains(child)) {
mAnimationEvents.add(new AnimationEvent(child,
AnimationEvent.ANIMATION_TYPE_ADD,
StackStateAnimator.ANIMATION_DURATION_STANDARD));
} else {
mAnimationEvents.add(new AnimationEvent(child,
AnimationEvent.ANIMATION_TYPE_ADD));
}
}
mChildrenToAddAnimated.clear();
mFromMoreCardAdditions.clear();
}
private void generateTopPaddingEvent() {
if (mTopPaddingNeedsAnimation) {
mAnimationEvents.add(
new AnimationEvent(null, AnimationEvent.ANIMATION_TYPE_TOP_PADDING_CHANGED));
}
mTopPaddingNeedsAnimation = false;
}
private void generateActivateEvent() {
if (mActivateNeedsAnimation) {
mAnimationEvents.add(
new AnimationEvent(null, AnimationEvent.ANIMATION_TYPE_ACTIVATED_CHILD));
}
mActivateNeedsAnimation = false;
}
private void generateAnimateEverythingEvent() {
if (mEverythingNeedsAnimation) {
mAnimationEvents.add(
new AnimationEvent(null, AnimationEvent.ANIMATION_TYPE_EVERYTHING));
}
mEverythingNeedsAnimation = false;
}
private void generateDimmedEvent() {
if (mDimmedNeedsAnimation) {
mAnimationEvents.add(
new AnimationEvent(null, AnimationEvent.ANIMATION_TYPE_DIMMED));
}
mDimmedNeedsAnimation = false;
}
private void generateHideSensitiveEvent() {
if (mHideSensitiveNeedsAnimation) {
mAnimationEvents.add(
new AnimationEvent(null, AnimationEvent.ANIMATION_TYPE_HIDE_SENSITIVE));
}
mHideSensitiveNeedsAnimation = false;
}
private void generateDarkEvent() {
if (mDarkNeedsAnimation) {
AnimationEvent ev = new AnimationEvent(null, AnimationEvent.ANIMATION_TYPE_DARK);
ev.darkAnimationOriginIndex = mDarkAnimationOriginIndex;
mAnimationEvents.add(ev);
startBackgroundFadeIn();
}
mDarkNeedsAnimation = false;
}
private void generateGoToFullShadeEvent() {
if (mGoToFullShadeNeedsAnimation) {
mAnimationEvents.add(
new AnimationEvent(null, AnimationEvent.ANIMATION_TYPE_GO_TO_FULL_SHADE));
}
mGoToFullShadeNeedsAnimation = false;
}
private boolean onInterceptTouchEventScroll(MotionEvent ev) {
if (!isScrollingEnabled()) {
return false;
}
/*
* This method JUST determines whether we want to intercept the motion.
* If we return true, onMotionEvent will be called and we do the actual
* scrolling there.
*/
/*
* Shortcut the most recurring case: the user is in the dragging
* state and is moving their finger. We want to intercept this
* motion.
*/
final int action = ev.getAction();
if ((action == MotionEvent.ACTION_MOVE) && (mIsBeingDragged)) {
return true;
}
switch (action & MotionEvent.ACTION_MASK) {
case MotionEvent.ACTION_MOVE: {
/*
* mIsBeingDragged == false, otherwise the shortcut would have caught it. Check
* whether the user has moved far enough from the original down touch.
*/
/*
* Locally do absolute value. mLastMotionY is set to the y value
* of the down event.
*/
final int activePointerId = mActivePointerId;
if (activePointerId == INVALID_POINTER) {
// If we don't have a valid id, the touch down wasn't on content.
break;
}
final int pointerIndex = ev.findPointerIndex(activePointerId);
if (pointerIndex == -1) {
Log.e(TAG, "Invalid pointerId=" + activePointerId
+ " in onInterceptTouchEvent");
break;
}
final int y = (int) ev.getY(pointerIndex);
final int x = (int) ev.getX(pointerIndex);
final int yDiff = Math.abs(y - mLastMotionY);
final int xDiff = Math.abs(x - mDownX);
if (yDiff > mTouchSlop && yDiff > xDiff) {
setIsBeingDragged(true);
mLastMotionY = y;
mDownX = x;
initVelocityTrackerIfNotExists();
mVelocityTracker.addMovement(ev);
}
break;
}
case MotionEvent.ACTION_DOWN: {
final int y = (int) ev.getY();
mScrolledToTopOnFirstDown = isScrolledToTop();
if (getChildAtPosition(ev.getX(), y) == null) {
setIsBeingDragged(false);
recycleVelocityTracker();
break;
}
/*
* Remember location of down touch.
* ACTION_DOWN always refers to pointer index 0.
*/
mLastMotionY = y;
mDownX = (int) ev.getX();
mActivePointerId = ev.getPointerId(0);
initOrResetVelocityTracker();
mVelocityTracker.addMovement(ev);
/*
* If being flinged and user touches the screen, initiate drag;
* otherwise don't. mScroller.isFinished should be false when
* being flinged.
*/
boolean isBeingDragged = !mScroller.isFinished();
setIsBeingDragged(isBeingDragged);
break;
}
case MotionEvent.ACTION_CANCEL:
case MotionEvent.ACTION_UP:
/* Release the drag */
setIsBeingDragged(false);
mActivePointerId = INVALID_POINTER;
recycleVelocityTracker();
if (mScroller.springBack(mScrollX, mOwnScrollY, 0, 0, 0, getScrollRange())) {
postInvalidateOnAnimation();
}
break;
case MotionEvent.ACTION_POINTER_UP:
onSecondaryPointerUp(ev);
break;
}
/*
* The only time we want to intercept motion events is if we are in the
* drag mode.
*/
return mIsBeingDragged;
}
/**
* @return Whether the specified motion event is actually happening over the content.
*/
private boolean isInContentBounds(MotionEvent event) {
return isInContentBounds(event.getY());
}
/**
* @return Whether a y coordinate is inside the content.
*/
public boolean isInContentBounds(float y) {
return y < getHeight() - getEmptyBottomMargin();
}
private void setIsBeingDragged(boolean isDragged) {
mIsBeingDragged = isDragged;
if (isDragged) {
requestDisallowInterceptTouchEvent(true);
removeLongPressCallback();
}
}
@Override
public void onWindowFocusChanged(boolean hasWindowFocus) {
super.onWindowFocusChanged(hasWindowFocus);
if (!hasWindowFocus) {
removeLongPressCallback();
}
}
@Override
public void clearChildFocus(View child) {
super.clearChildFocus(child);
if (mForcedScroll == child) {
mForcedScroll = null;
}
}
@Override
public void requestDisallowLongPress() {
removeLongPressCallback();
}
@Override
public void requestDisallowDismiss() {
mDisallowDismissInThisMotion = true;
}
public void removeLongPressCallback() {
mSwipeHelper.removeLongPressCallback();
}
@Override
public boolean isScrolledToTop() {
return mOwnScrollY == 0;
}
@Override
public boolean isScrolledToBottom() {
return mOwnScrollY >= getScrollRange();
}
@Override
public View getHostView() {
return this;
}
public int getEmptyBottomMargin() {
int emptyMargin = mMaxLayoutHeight - mContentHeight - mBottomStackPeekSize
- mBottomStackSlowDownHeight;
return Math.max(emptyMargin, 0);
}
public float getKeyguardBottomStackSize() {
return mBottomStackPeekSize + getResources().getDimensionPixelSize(
R.dimen.bottom_stack_slow_down_length);
}
public void onExpansionStarted() {
mIsExpansionChanging = true;
}
public void onExpansionStopped() {
mIsExpansionChanging = false;
if (!mIsExpanded) {
setOwnScrollY(0);
mPhoneStatusBar.resetUserExpandedStates();
// lets make sure nothing is in the overlay / transient anymore
clearTemporaryViews(this);
for (int i = 0; i < getChildCount(); i++) {
ExpandableView child = (ExpandableView) getChildAt(i);
if (child instanceof ExpandableNotificationRow) {
ExpandableNotificationRow row = (ExpandableNotificationRow) child;
clearTemporaryViews(row.getChildrenContainer());
}
}
}
}
private void clearTemporaryViews(ViewGroup viewGroup) {
while (viewGroup != null && viewGroup.getTransientViewCount() != 0) {
viewGroup.removeTransientView(viewGroup.getTransientView(0));
}
if (viewGroup != null) {
viewGroup.getOverlay().clear();
}
}
public void onPanelTrackingStarted() {
mPanelTracking = true;
}
public void onPanelTrackingStopped() {
mPanelTracking = false;
}
public void resetScrollPosition() {
mScroller.abortAnimation();
setOwnScrollY(0);
}
private void setIsExpanded(boolean isExpanded) {
boolean changed = isExpanded != mIsExpanded;
mIsExpanded = isExpanded;
mStackScrollAlgorithm.setIsExpanded(isExpanded);
if (changed) {
if (!mIsExpanded) {
mGroupManager.collapseAllGroups();
}
updateNotificationAnimationStates();
updateChronometers();
}
}
private void updateChronometers() {
int childCount = getChildCount();
for (int i = 0; i < childCount; i++) {
updateChronometerForChild(getChildAt(i));
}
}
private void updateChronometerForChild(View child) {
if (child instanceof ExpandableNotificationRow) {
ExpandableNotificationRow row = (ExpandableNotificationRow) child;
row.setChronometerRunning(mIsExpanded);
}
}
@Override
public void onHeightChanged(ExpandableView view, boolean needsAnimation) {
updateContentHeight();
updateScrollPositionOnExpandInBottom(view);
clampScrollPosition();
notifyHeightChangeListener(view);
ExpandableNotificationRow row = view instanceof ExpandableNotificationRow
? (ExpandableNotificationRow) view
: null;
if (row != null && (row == mFirstVisibleBackgroundChild
|| row.getNotificationParent() == mFirstVisibleBackgroundChild)) {
updateAlgorithmLayoutMinHeight();
}
if (needsAnimation) {
requestAnimationOnViewResize(row);
}
requestChildrenUpdate();
}
@Override
public void onReset(ExpandableView view) {
updateAnimationState(view);
updateChronometerForChild(view);
}
private void updateScrollPositionOnExpandInBottom(ExpandableView view) {
if (view instanceof ExpandableNotificationRow) {
ExpandableNotificationRow row = (ExpandableNotificationRow) view;
if (row.isUserLocked() && row != getFirstChildNotGone()) {
if (row.isSummaryWithChildren()) {
return;
}
// We are actually expanding this view
float endPosition = row.getTranslationY() + row.getActualHeight();
if (row.isChildInGroup()) {
endPosition += row.getNotificationParent().getTranslationY();
}
int stackEnd = getStackEndPosition();
if (endPosition > stackEnd) {
setOwnScrollY((int) (mOwnScrollY + endPosition - stackEnd));
mDisallowScrollingInThisMotion = true;
}
}
}
}
private int getStackEndPosition() {
return mMaxLayoutHeight - mBottomStackPeekSize - mBottomStackSlowDownHeight
+ mPaddingBetweenElements + (int) mStackTranslation;
}
public void setOnHeightChangedListener(
ExpandableView.OnHeightChangedListener mOnHeightChangedListener) {
this.mOnHeightChangedListener = mOnHeightChangedListener;
}
public void setOnEmptySpaceClickListener(OnEmptySpaceClickListener listener) {
mOnEmptySpaceClickListener = listener;
}
public void onChildAnimationFinished() {
setAnimationRunning(false);
requestChildrenUpdate();
runAnimationFinishedRunnables();
clearViewOverlays();
clearHeadsUpDisappearRunning();
}
private void clearHeadsUpDisappearRunning() {
for (int i = 0; i < getChildCount(); i++) {
View view = getChildAt(i);
if (view instanceof ExpandableNotificationRow) {
ExpandableNotificationRow row = (ExpandableNotificationRow) view;
row.setHeadsupDisappearRunning(false);
if (row.isSummaryWithChildren()) {
for (ExpandableNotificationRow child : row.getNotificationChildren()) {
child.setHeadsupDisappearRunning(false);
}
}
}
}
}
private void clearViewOverlays() {
for (View view : mClearOverlayViewsWhenFinished) {
StackStateAnimator.removeFromOverlay(view);
}
}
private void runAnimationFinishedRunnables() {
for (Runnable runnable : mAnimationFinishedRunnables) {
runnable.run();
}
mAnimationFinishedRunnables.clear();
}
/**
* See {@link AmbientState#setDimmed}.
*/
public void setDimmed(boolean dimmed, boolean animate) {
mAmbientState.setDimmed(dimmed);
if (animate && mAnimationsEnabled) {
mDimmedNeedsAnimation = true;
mNeedsAnimation = true;
animateDimmed(dimmed);
} else {
setDimAmount(dimmed ? 1.0f : 0.0f);
}
requestChildrenUpdate();
}
private void setDimAmount(float dimAmount) {
mDimAmount = dimAmount;
updateBackgroundDimming();
}
private void animateDimmed(boolean dimmed) {
if (mDimAnimator != null) {
mDimAnimator.cancel();
}
float target = dimmed ? 1.0f : 0.0f;
if (target == mDimAmount) {
return;
}
mDimAnimator = TimeAnimator.ofFloat(mDimAmount, target);
mDimAnimator.setDuration(StackStateAnimator.ANIMATION_DURATION_DIMMED_ACTIVATED);
mDimAnimator.setInterpolator(Interpolators.FAST_OUT_SLOW_IN);
mDimAnimator.addListener(mDimEndListener);
mDimAnimator.addUpdateListener(mDimUpdateListener);
mDimAnimator.start();
}
public void setHideSensitive(boolean hideSensitive, boolean animate) {
if (hideSensitive != mAmbientState.isHideSensitive()) {
int childCount = getChildCount();
for (int i = 0; i < childCount; i++) {
ExpandableView v = (ExpandableView) getChildAt(i);
v.setHideSensitiveForIntrinsicHeight(hideSensitive);
}
mAmbientState.setHideSensitive(hideSensitive);
if (animate && mAnimationsEnabled) {
mHideSensitiveNeedsAnimation = true;
mNeedsAnimation = true;
}
requestChildrenUpdate();
}
}
/**
* See {@link AmbientState#setActivatedChild}.
*/
public void setActivatedChild(ActivatableNotificationView activatedChild) {
mAmbientState.setActivatedChild(activatedChild);
if (mAnimationsEnabled) {
mActivateNeedsAnimation = true;
mNeedsAnimation = true;
}
requestChildrenUpdate();
}
public ActivatableNotificationView getActivatedChild() {
return mAmbientState.getActivatedChild();
}
private void applyCurrentState() {
mCurrentStackScrollState.apply();
if (mListener != null) {
mListener.onChildLocationsChanged(this);
}
runAnimationFinishedRunnables();
setAnimationRunning(false);
updateBackground();
updateViewShadows();
}
private void updateViewShadows() {
// we need to work around an issue where the shadow would not cast between siblings when
// their z difference is between 0 and 0.1
// Lefts first sort by Z difference
for (int i = 0; i < getChildCount(); i++) {
ExpandableView child = (ExpandableView) getChildAt(i);
if (child.getVisibility() != GONE) {
mTmpSortedChildren.add(child);
}
}
Collections.sort(mTmpSortedChildren, mViewPositionComparator);
// Now lets update the shadow for the views
ExpandableView previous = null;
for (int i = 0; i < mTmpSortedChildren.size(); i++) {
ExpandableView expandableView = mTmpSortedChildren.get(i);
float translationZ = expandableView.getTranslationZ();
float otherZ = previous == null ? translationZ : previous.getTranslationZ();
float diff = otherZ - translationZ;
if (diff <= 0.0f || diff >= FakeShadowView.SHADOW_SIBLING_TRESHOLD) {
// There is no fake shadow to be drawn
expandableView.setFakeShadowIntensity(0.0f, 0.0f, 0, 0);
} else {
float yLocation = previous.getTranslationY() + previous.getActualHeight() -
expandableView.getTranslationY() - previous.getExtraBottomPadding();
expandableView.setFakeShadowIntensity(
diff / FakeShadowView.SHADOW_SIBLING_TRESHOLD,
previous.getOutlineAlpha(), (int) yLocation,
previous.getOutlineTranslation());
}
previous = expandableView;
}
mTmpSortedChildren.clear();
}
public void goToFullShade(long delay) {
mDismissView.setInvisible();
mEmptyShadeView.setInvisible();
mGoToFullShadeNeedsAnimation = true;
mGoToFullShadeDelay = delay;
mNeedsAnimation = true;
requestChildrenUpdate();
}
public void cancelExpandHelper() {
mExpandHelper.cancel();
}
public void setIntrinsicPadding(int intrinsicPadding) {
mIntrinsicPadding = intrinsicPadding;
}
public int getIntrinsicPadding() {
return mIntrinsicPadding;
}
/**
* @return the y position of the first notification
*/
public float getNotificationsTopY() {
return mTopPadding + getStackTranslation();
}
@Override
public boolean shouldDelayChildPressedState() {
return true;
}
/**
* See {@link AmbientState#setDark}.
*/
public void setDark(boolean dark, boolean animate, @Nullable PointF touchWakeUpScreenLocation) {
mAmbientState.setDark(dark);
if (animate && mAnimationsEnabled) {
mDarkNeedsAnimation = true;
mDarkAnimationOriginIndex = findDarkAnimationOriginIndex(touchWakeUpScreenLocation);
mNeedsAnimation = true;
setBackgroundFadeAmount(0.0f);
} else if (!dark) {
setBackgroundFadeAmount(1.0f);
}
requestChildrenUpdate();
if (dark) {
setWillNotDraw(!DEBUG);
mScrimController.setExcludedBackgroundArea(null);
} else {
updateBackground();
setWillNotDraw(false);
}
}
private void setBackgroundFadeAmount(float fadeAmount) {
mBackgroundFadeAmount = fadeAmount;
updateBackgroundDimming();
}
public float getBackgroundFadeAmount() {
return mBackgroundFadeAmount;
}
private void startBackgroundFadeIn() {
ObjectAnimator fadeAnimator = ObjectAnimator.ofFloat(this, BACKGROUND_FADE, 0f, 1f);
int maxLength;
if (mDarkAnimationOriginIndex == AnimationEvent.DARK_ANIMATION_ORIGIN_INDEX_ABOVE
|| mDarkAnimationOriginIndex == AnimationEvent.DARK_ANIMATION_ORIGIN_INDEX_BELOW) {
maxLength = getNotGoneChildCount() - 1;
} else {
maxLength = Math.max(mDarkAnimationOriginIndex,
getNotGoneChildCount() - mDarkAnimationOriginIndex - 1);
}
maxLength = Math.max(0, maxLength);
long delay = maxLength * StackStateAnimator.ANIMATION_DELAY_PER_ELEMENT_DARK;
fadeAnimator.setStartDelay(delay);
fadeAnimator.setDuration(StackStateAnimator.ANIMATION_DURATION_STANDARD);
fadeAnimator.setInterpolator(Interpolators.ALPHA_IN);
fadeAnimator.start();
}
private int findDarkAnimationOriginIndex(@Nullable PointF screenLocation) {
if (screenLocation == null || screenLocation.y < mTopPadding) {
return AnimationEvent.DARK_ANIMATION_ORIGIN_INDEX_ABOVE;
}
if (screenLocation.y > getBottomMostNotificationBottom()) {
return AnimationEvent.DARK_ANIMATION_ORIGIN_INDEX_BELOW;
}
View child = getClosestChildAtRawPosition(screenLocation.x, screenLocation.y);
if (child != null) {
return getNotGoneIndex(child);
} else {
return AnimationEvent.DARK_ANIMATION_ORIGIN_INDEX_ABOVE;
}
}
private int getNotGoneIndex(View child) {
int count = getChildCount();
int notGoneIndex = 0;
for (int i = 0; i < count; i++) {
View v = getChildAt(i);
if (child == v) {
return notGoneIndex;
}
if (v.getVisibility() != View.GONE) {
notGoneIndex++;
}
}
return -1;
}
public void setDismissView(DismissView dismissView) {
int index = -1;
if (mDismissView != null) {
index = indexOfChild(mDismissView);
removeView(mDismissView);
}
mDismissView = dismissView;
addView(mDismissView, index);
}
public void setEmptyShadeView(EmptyShadeView emptyShadeView) {
int index = -1;
if (mEmptyShadeView != null) {
index = indexOfChild(mEmptyShadeView);
removeView(mEmptyShadeView);
}
mEmptyShadeView = emptyShadeView;
addView(mEmptyShadeView, index);
}
public void updateEmptyShadeView(boolean visible) {
int oldVisibility = mEmptyShadeView.willBeGone() ? GONE : mEmptyShadeView.getVisibility();
int newVisibility = visible ? VISIBLE : GONE;
if (oldVisibility != newVisibility) {
if (newVisibility != GONE) {
if (mEmptyShadeView.willBeGone()) {
mEmptyShadeView.cancelAnimation();
} else {
mEmptyShadeView.setInvisible();
}
mEmptyShadeView.setVisibility(newVisibility);
mEmptyShadeView.setWillBeGone(false);
updateContentHeight();
notifyHeightChangeListener(mEmptyShadeView);
} else {
Runnable onFinishedRunnable = new Runnable() {
@Override
public void run() {
mEmptyShadeView.setVisibility(GONE);
mEmptyShadeView.setWillBeGone(false);
updateContentHeight();
notifyHeightChangeListener(mEmptyShadeView);
}
};
if (mAnimationsEnabled && mIsExpanded) {
mEmptyShadeView.setWillBeGone(true);
mEmptyShadeView.performVisibilityAnimation(false, onFinishedRunnable);
} else {
mEmptyShadeView.setInvisible();
onFinishedRunnable.run();
}
}
}
}
public void setOverflowContainer(NotificationOverflowContainer overFlowContainer) {
int index = -1;
if (mOverflowContainer != null) {
index = indexOfChild(mOverflowContainer);
removeView(mOverflowContainer);
}
mOverflowContainer = overFlowContainer;
addView(mOverflowContainer, index);
}
public void updateOverflowContainerVisibility(boolean visible) {
int oldVisibility = mOverflowContainer.willBeGone() ? GONE
: mOverflowContainer.getVisibility();
final int newVisibility = visible ? VISIBLE : GONE;
if (oldVisibility != newVisibility) {
Runnable onFinishedRunnable = new Runnable() {
@Override
public void run() {
mOverflowContainer.setVisibility(newVisibility);
mOverflowContainer.setWillBeGone(false);
updateContentHeight();
notifyHeightChangeListener(mOverflowContainer);
}
};
if (!mAnimationsEnabled || !mIsExpanded) {
mOverflowContainer.cancelAppearDrawing();
onFinishedRunnable.run();
} else if (newVisibility != GONE) {
mOverflowContainer.performAddAnimation(0,
StackStateAnimator.ANIMATION_DURATION_STANDARD);
mOverflowContainer.setVisibility(newVisibility);
mOverflowContainer.setWillBeGone(false);
updateContentHeight();
notifyHeightChangeListener(mOverflowContainer);
} else {
mOverflowContainer.performRemoveAnimation(
StackStateAnimator.ANIMATION_DURATION_STANDARD,
0.0f,
onFinishedRunnable);
mOverflowContainer.setWillBeGone(true);
}
}
}
public void updateDismissView(boolean visible) {
int oldVisibility = mDismissView.willBeGone() ? GONE : mDismissView.getVisibility();
int newVisibility = visible ? VISIBLE : GONE;
if (oldVisibility != newVisibility) {
if (newVisibility != GONE) {
if (mDismissView.willBeGone()) {
mDismissView.cancelAnimation();
} else {
mDismissView.setInvisible();
}
mDismissView.setVisibility(newVisibility);
mDismissView.setWillBeGone(false);
updateContentHeight();
notifyHeightChangeListener(mDismissView);
} else {
Runnable dimissHideFinishRunnable = new Runnable() {
@Override
public void run() {
mDismissView.setVisibility(GONE);
mDismissView.setWillBeGone(false);
updateContentHeight();
notifyHeightChangeListener(mDismissView);
}
};
if (mDismissView.isButtonVisible() && mIsExpanded && mAnimationsEnabled) {
mDismissView.setWillBeGone(true);
mDismissView.performVisibilityAnimation(false, dimissHideFinishRunnable);
} else {
dimissHideFinishRunnable.run();
}
}
}
}
public void setDismissAllInProgress(boolean dismissAllInProgress) {
mDismissAllInProgress = dismissAllInProgress;
mAmbientState.setDismissAllInProgress(dismissAllInProgress);
handleDismissAllClipping();
}
private void handleDismissAllClipping() {
final int count = getChildCount();
boolean previousChildWillBeDismissed = false;
for (int i = 0; i < count; i++) {
ExpandableView child = (ExpandableView) getChildAt(i);
if (child.getVisibility() == GONE) {
continue;
}
if (mDismissAllInProgress && previousChildWillBeDismissed) {
child.setMinClipTopAmount(child.getClipTopAmount());
} else {
child.setMinClipTopAmount(0);
}
previousChildWillBeDismissed = canChildBeDismissed(child);
}
}
public boolean isDismissViewNotGone() {
return mDismissView.getVisibility() != View.GONE && !mDismissView.willBeGone();
}
public boolean isDismissViewVisible() {
return mDismissView.isVisible();
}
public int getDismissViewHeight() {
return mDismissView.getHeight() + mPaddingBetweenElements;
}
public int getEmptyShadeViewHeight() {
return mEmptyShadeView.getHeight();
}
public float getBottomMostNotificationBottom() {
final int count = getChildCount();
float max = 0;
for (int childIdx = 0; childIdx < count; childIdx++) {
ExpandableView child = (ExpandableView) getChildAt(childIdx);
if (child.getVisibility() == GONE) {
continue;
}
float bottom = child.getTranslationY() + child.getActualHeight();
if (bottom > max) {
max = bottom;
}
}
return max + getStackTranslation();
}
public void setPhoneStatusBar(PhoneStatusBar phoneStatusBar) {
this.mPhoneStatusBar = phoneStatusBar;
}
public void setGroupManager(NotificationGroupManager groupManager) {
this.mGroupManager = groupManager;
}
public void onGoToKeyguard() {
requestAnimateEverything();
}
private void requestAnimateEverything() {
if (mIsExpanded && mAnimationsEnabled) {
mEverythingNeedsAnimation = true;
mNeedsAnimation = true;
requestChildrenUpdate();
}
}
public boolean isBelowLastNotification(float touchX, float touchY) {
int childCount = getChildCount();
for (int i = childCount - 1; i >= 0; i--) {
ExpandableView child = (ExpandableView) getChildAt(i);
if (child.getVisibility() != View.GONE) {
float childTop = child.getY();
if (childTop > touchY) {
// we are above a notification entirely let's abort
return false;
}
boolean belowChild = touchY > childTop + child.getActualHeight();
if (child == mDismissView) {
if(!belowChild && !mDismissView.isOnEmptySpace(touchX - mDismissView.getX(),
touchY - childTop)) {
// We clicked on the dismiss button
return false;
}
} else if (child == mEmptyShadeView) {
// We arrived at the empty shade view, for which we accept all clicks
return true;
} else if (!belowChild){
// We are on a child
return false;
}
}
}
return touchY > mTopPadding + mStackTranslation;
}
@Override
public void onGroupExpansionChanged(ExpandableNotificationRow changedRow, boolean expanded) {
boolean animated = !mGroupExpandedForMeasure && mAnimationsEnabled
&& (mIsExpanded || changedRow.isPinned());
if (animated) {
mExpandedGroupView = changedRow;
mNeedsAnimation = true;
}
changedRow.setChildrenExpanded(expanded, animated);
if (!mGroupExpandedForMeasure) {
onHeightChanged(changedRow, false /* needsAnimation */);
}
runAfterAnimationFinished(new Runnable() {
@Override
public void run() {
changedRow.onFinishedExpansionChange();
}
});
}
@Override
public void onGroupCreatedFromChildren(NotificationGroupManager.NotificationGroup group) {
mPhoneStatusBar.requestNotificationUpdate();
}
/** @hide */
@Override
public void onInitializeAccessibilityEventInternal(AccessibilityEvent event) {
super.onInitializeAccessibilityEventInternal(event);
event.setScrollable(mScrollable);
event.setScrollX(mScrollX);
event.setScrollY(mOwnScrollY);
event.setMaxScrollX(mScrollX);
event.setMaxScrollY(getScrollRange());
}
@Override
public void onInitializeAccessibilityNodeInfoInternal(AccessibilityNodeInfo info) {
super.onInitializeAccessibilityNodeInfoInternal(info);
if (mScrollable) {
info.setScrollable(true);
if (mBackwardScrollable) {
info.addAction(
AccessibilityNodeInfo.AccessibilityAction.ACTION_SCROLL_BACKWARD);
info.addAction(AccessibilityNodeInfo.AccessibilityAction.ACTION_SCROLL_UP);
}
if (mForwardScrollable) {
info.addAction(AccessibilityNodeInfo.AccessibilityAction.ACTION_SCROLL_FORWARD);
info.addAction(AccessibilityNodeInfo.AccessibilityAction.ACTION_SCROLL_DOWN);
}
}
// Talkback only listenes to scroll events of certain classes, let's make us a scrollview
info.setClassName(ScrollView.class.getName());
}
/** @hide */
@Override
public boolean performAccessibilityActionInternal(int action, Bundle arguments) {
if (super.performAccessibilityActionInternal(action, arguments)) {
return true;
}
if (!isEnabled()) {
return false;
}
int direction = -1;
switch (action) {
case AccessibilityNodeInfo.ACTION_SCROLL_FORWARD:
// fall through
case android.R.id.accessibilityActionScrollDown:
direction = 1;
// fall through
case AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD:
// fall through
case android.R.id.accessibilityActionScrollUp:
final int viewportHeight = getHeight() - mPaddingBottom - mTopPadding - mPaddingTop
- mBottomStackPeekSize - mBottomStackSlowDownHeight;
final int targetScrollY = Math.max(0,
Math.min(mOwnScrollY + direction * viewportHeight, getScrollRange()));
if (targetScrollY != mOwnScrollY) {
mScroller.startScroll(mScrollX, mOwnScrollY, 0, targetScrollY - mOwnScrollY);
postInvalidateOnAnimation();
return true;
}
break;
}
return false;
}
@Override
public void onGroupsChanged() {
mPhoneStatusBar.requestNotificationUpdate();
}
public void generateChildOrderChangedEvent() {
if (mIsExpanded && mAnimationsEnabled) {
mGenerateChildOrderChangedEvent = true;
mNeedsAnimation = true;
requestChildrenUpdate();
}
}
public void runAfterAnimationFinished(Runnable runnable) {
mAnimationFinishedRunnables.add(runnable);
}
public void setHeadsUpManager(HeadsUpManager headsUpManager) {
mHeadsUpManager = headsUpManager;
mAmbientState.setHeadsUpManager(headsUpManager);
}
public void generateHeadsUpAnimation(ExpandableNotificationRow row, boolean isHeadsUp) {
if (mAnimationsEnabled) {
mHeadsUpChangeAnimations.add(new Pair<>(row, isHeadsUp));
mNeedsAnimation = true;
if (!mIsExpanded && !isHeadsUp) {
row.setHeadsupDisappearRunning(true);
}
requestChildrenUpdate();
}
}
public void setShadeExpanded(boolean shadeExpanded) {
mAmbientState.setShadeExpanded(shadeExpanded);
mStateAnimator.setShadeExpanded(shadeExpanded);
}
/**
* Set the boundary for the bottom heads up position. The heads up will always be above this
* position.
*
* @param height the height of the screen
* @param bottomBarHeight the height of the bar on the bottom
*/
public void setHeadsUpBoundaries(int height, int bottomBarHeight) {
mAmbientState.setMaxHeadsUpTranslation(height - bottomBarHeight);
mStateAnimator.setHeadsUpAppearHeightBottom(height);
requestChildrenUpdate();
}
public void setTrackingHeadsUp(boolean trackingHeadsUp) {
mTrackingHeadsUp = trackingHeadsUp;
}
public void setScrimController(ScrimController scrimController) {
mScrimController = scrimController;
mScrimController.setScrimBehindChangeRunnable(new Runnable() {
@Override
public void run() {
updateBackgroundDimming();
}
});
}
public void forceNoOverlappingRendering(boolean force) {
mForceNoOverlappingRendering = force;
}
@Override
public boolean hasOverlappingRendering() {
return !mForceNoOverlappingRendering && super.hasOverlappingRendering();
}
public void setAnimationRunning(boolean animationRunning) {
if (animationRunning != mAnimationRunning) {
if (animationRunning) {
getViewTreeObserver().addOnPreDrawListener(mBackgroundUpdater);
} else {
getViewTreeObserver().removeOnPreDrawListener(mBackgroundUpdater);
}
mAnimationRunning = animationRunning;
updateContinuousShadowDrawing();
}
}
public boolean isExpanded() {
return mIsExpanded;
}
public void setPulsing(boolean pulsing) {
mPulsing = pulsing;
updateNotificationAnimationStates();
}
public void setFadingOut(boolean fadingOut) {
if (fadingOut != mFadingOut) {
mFadingOut = fadingOut;
updateFadingState();
}
}
public void setParentFadingOut(boolean fadingOut) {
if (fadingOut != mParentFadingOut) {
mParentFadingOut = fadingOut;
updateFadingState();
}
}
private void updateFadingState() {
applyCurrentBackgroundBounds();
updateSrcDrawing();
}
@Override
public void setAlpha(@FloatRange(from = 0.0, to = 1.0) float alpha) {
super.setAlpha(alpha);
setFadingOut(alpha != 1.0f);
}
/**
* Remove the a given view from the viewstate. This is currently used when the children are
* kept in the parent artificially to have a nicer animation.
* @param view the view to remove
*/
public void removeViewStateForView(View view) {
mCurrentStackScrollState.removeViewStateForView(view);
}
public void setQsExpanded(boolean qsExpanded) {
mQsExpanded = qsExpanded;
updateAlgorithmLayoutMinHeight();
}
public void setOwnScrollY(int ownScrollY) {
if (ownScrollY != mOwnScrollY) {
mOwnScrollY = ownScrollY;
updateForwardAndBackwardScrollability();
}
}
/**
* A listener that is notified when some child locations might have changed.
*/
public interface OnChildLocationsChangedListener {
public void onChildLocationsChanged(NotificationStackScrollLayout stackScrollLayout);
}
/**
* A listener that is notified when the empty space below the notifications is clicked on
*/
public interface OnEmptySpaceClickListener {
public void onEmptySpaceClicked(float x, float y);
}
/**
* A listener that gets notified when the overscroll at the top has changed.
*/
public interface OnOverscrollTopChangedListener {
/**
* Notifies a listener that the overscroll has changed.
*
* @param amount the amount of overscroll, in pixels
* @param isRubberbanded if true, this is a rubberbanded overscroll; if false, this is an
* unrubberbanded motion to directly expand overscroll view (e.g expand
* QS)
*/
public void onOverscrollTopChanged(float amount, boolean isRubberbanded);
/**
* Notify a listener that the scroller wants to escape from the scrolling motion and
* start a fling animation to the expanded or collapsed overscroll view (e.g expand the QS)
*
* @param velocity The velocity that the Scroller had when over flinging
* @param open Should the fling open or close the overscroll view.
*/
public void flingTopOverscroll(float velocity, boolean open);
}
private class NotificationSwipeHelper extends SwipeHelper {
private static final long SHOW_GEAR_DELAY = 60;
private static final long COVER_GEAR_DELAY = 4000;
private static final long SWIPE_GEAR_TIMING = 200;
private CheckForDrag mCheckForDrag;
private Runnable mFalsingCheck;
private Handler mHandler;
private boolean mGearSnappedTo;
private boolean mGearSnappedOnLeft;
public NotificationSwipeHelper(int swipeDirection, Callback callback, Context context) {
super(swipeDirection, callback, context);
mHandler = new Handler();
mFalsingCheck = new Runnable() {
@Override
public void run() {
resetExposedGearView(true /* animate */, true /* force */);
}
};
}
@Override
public void onDownUpdate(View currView) {
// Set the active view
mTranslatingParentView = currView;
// Reset check for drag gesture
cancelCheckForDrag();
if (mCurrIconRow != null) {
mCurrIconRow.setSnapping(false);
}
mCheckForDrag = null;
mCurrIconRow = null;
mHandler.removeCallbacks(mFalsingCheck);
// Slide back any notifications that might be showing a gear
resetExposedGearView(true /* animate */, false /* force */);
if (currView instanceof ExpandableNotificationRow) {
// Set the listener for the current row's gear
mCurrIconRow = ((ExpandableNotificationRow) currView).getSettingsRow();
mCurrIconRow.setGearListener(NotificationStackScrollLayout.this);
}
}
@Override
public void onMoveUpdate(View view, float translation, float delta) {
mHandler.removeCallbacks(mFalsingCheck);
if (mCurrIconRow != null) {
mCurrIconRow.setSnapping(false); // If we're moving, we're not snapping.
// If the gear is visible and the movement is towards it it's not a location change.
boolean onLeft = mGearSnappedTo ? mGearSnappedOnLeft : mCurrIconRow.isIconOnLeft();
boolean locationChange = isTowardsGear(translation, onLeft)
? false : mCurrIconRow.isIconLocationChange(translation);
if (locationChange) {
// Don't consider it "snapped" if location has changed.
setSnappedToGear(false);
// Changed directions, make sure we check to fade in icon again.
if (!mHandler.hasCallbacks(mCheckForDrag)) {
// No check scheduled, set null to schedule a new one.
mCheckForDrag = null;
} else {
// Check scheduled, reset alpha and update location; check will fade it in
mCurrIconRow.setGearAlpha(0f);
mCurrIconRow.setIconLocation(translation > 0 /* onLeft */);
}
}
}
final boolean gutsExposed = (view instanceof ExpandableNotificationRow)
&& ((ExpandableNotificationRow) view).areGutsExposed();
if (!isPinnedHeadsUp(view) && !gutsExposed) {
// Only show the gear if we're not a heads up view and guts aren't exposed.
checkForDrag();
}
}
@Override
public void dismissChild(final View view, float velocity,
boolean useAccelerateInterpolator) {
super.dismissChild(view, velocity, useAccelerateInterpolator);
if (mIsExpanded) {
// We don't want to quick-dismiss when it's a heads up as this might lead to closing
// of the panel early.
handleChildDismissed(view);
}
handleGearCoveredOrDismissed();
}
@Override
public void snapChild(final View animView, final float targetLeft, float velocity) {
super.snapChild(animView, targetLeft, velocity);
onDragCancelled(animView);
if (targetLeft == 0) {
handleGearCoveredOrDismissed();
}
}
private void handleGearCoveredOrDismissed() {
cancelCheckForDrag();
setSnappedToGear(false);
if (mGearExposedView != null && mGearExposedView == mTranslatingParentView) {
mGearExposedView = null;
}
}
@Override
public boolean handleUpEvent(MotionEvent ev, View animView, float velocity,
float translation) {
if (mCurrIconRow == null) {
cancelCheckForDrag();
return false; // Let SwipeHelper handle it.
}
boolean gestureTowardsGear = isTowardsGear(velocity, mCurrIconRow.isIconOnLeft());
boolean gestureFastEnough = Math.abs(velocity) > getEscapeVelocity();
final double timeForGesture = ev.getEventTime() - ev.getDownTime();
final boolean showGearForSlowOnGoing = !canChildBeDismissed(animView)
&& timeForGesture >= SWIPE_GEAR_TIMING;
if (mGearSnappedTo && mCurrIconRow.isVisible()) {
if (mGearSnappedOnLeft == mCurrIconRow.isIconOnLeft()) {
boolean coveringGear =
Math.abs(getTranslation(animView)) <= getSpaceForGear(animView) * 0.6f;
if (gestureTowardsGear || coveringGear) {
// Gesture is towards or covering the gear
snapChild(animView, 0 /* leftTarget */, velocity);
} else if (isDismissGesture(ev)) {
// Gesture is a dismiss that's not towards the gear
dismissChild(animView, velocity,
!swipedFastEnough() /* useAccelerateInterpolator */);
} else {
// Didn't move enough to dismiss or cover, snap to the gear
snapToGear(animView, velocity);
}
} else if ((!gestureFastEnough && swipedEnoughToShowGear(animView))
|| (gestureTowardsGear && !swipedFarEnough())) {
// The gear has been snapped to previously, however, the gear is now on the
// other side. If gesture is towards gear and not too far snap to the gear.
snapToGear(animView, velocity);
} else {
dismissOrSnapBack(animView, velocity, ev);
}
} else if (((!gestureFastEnough || showGearForSlowOnGoing)
&& swipedEnoughToShowGear(animView))
|| gestureTowardsGear) {
// Gear has not been snapped to previously and this is gear revealing gesture
snapToGear(animView, velocity);
} else {
dismissOrSnapBack(animView, velocity, ev);
}
return true;
}
private void dismissOrSnapBack(View animView, float velocity, MotionEvent ev) {
if (isDismissGesture(ev)) {
dismissChild(animView, velocity,
!swipedFastEnough() /* useAccelerateInterpolator */);
} else {
snapChild(animView, 0 /* leftTarget */, velocity);
}
}
private void snapToGear(View animView, float velocity) {
final float snapBackThreshold = getSpaceForGear(animView);
final float target = mCurrIconRow.isIconOnLeft() ? snapBackThreshold
: -snapBackThreshold;
mGearExposedView = mTranslatingParentView;
if (animView instanceof ExpandableNotificationRow) {
MetricsLogger.action(mContext, MetricsEvent.ACTION_REVEAL_GEAR,
((ExpandableNotificationRow) animView).getStatusBarNotification()
.getPackageName());
}
if (mCurrIconRow != null) {
mCurrIconRow.setSnapping(true);
setSnappedToGear(true);
}
onDragCancelled(animView);
// If we're on the lockscreen we want to false this.
if (isAntiFalsingNeeded()) {
mHandler.removeCallbacks(mFalsingCheck);
mHandler.postDelayed(mFalsingCheck, COVER_GEAR_DELAY);
}
super.snapChild(animView, target, velocity);
}
private boolean swipedEnoughToShowGear(View animView) {
if (mTranslatingParentView == null) {
return false;
}
// If the notification can't be dismissed then how far it can move is
// restricted -- reduce the distance it needs to move in this case.
final float multiplier = canChildBeDismissed(animView) ? 0.4f : 0.2f;
final float snapBackThreshold = getSpaceForGear(animView) * multiplier;
final float translation = getTranslation(animView);
return !swipedFarEnough() && mCurrIconRow.isVisible() && (mCurrIconRow.isIconOnLeft()
? translation > snapBackThreshold
: translation < -snapBackThreshold);
}
@Override
public Animator getViewTranslationAnimator(View v, float target,
AnimatorUpdateListener listener) {
if (v instanceof ExpandableNotificationRow) {
return ((ExpandableNotificationRow) v).getTranslateViewAnimator(target, listener);
} else {
return super.getViewTranslationAnimator(v, target, listener);
}
}
@Override
public void setTranslation(View v, float translate) {
((ExpandableView) v).setTranslation(translate);
}
@Override
public float getTranslation(View v) {
return ((ExpandableView) v).getTranslation();
}
public void closeControlsIfOutsideTouch(MotionEvent ev) {
NotificationGuts guts = mPhoneStatusBar.getExposedGuts();
View view = null;
int height = 0;
if (guts != null) {
// Checking guts
view = guts;
height = guts.getActualHeight();
} else if (mCurrIconRow != null && mCurrIconRow.isVisible()
&& mTranslatingParentView != null) {
// Checking gear
view = mTranslatingParentView;
height = ((ExpandableView) mTranslatingParentView).getActualHeight();
}
if (view != null) {
final int rx = (int) ev.getRawX();
final int ry = (int) ev.getRawY();
view.getLocationOnScreen(mTempInt2);
final int x = mTempInt2[0];
final int y = mTempInt2[1];
Rect rect = new Rect(x, y, x + view.getWidth(), y + height);
if (!rect.contains(rx, ry)) {
// Touch was outside visible guts / gear notification, close what's visible
mPhoneStatusBar.dismissPopups(-1, -1, true /* resetGear */, true /* animate */);
}
}
}
/**
* Returns whether the gesture is towards the gear location or not.
*/
private boolean isTowardsGear(float velocity, boolean onLeft) {
if (mCurrIconRow == null) {
return false;
}
return mCurrIconRow.isVisible()
&& ((onLeft && velocity <= 0) || (!onLeft && velocity >= 0));
}
/**
* Indicates the the gear has been snapped to.
*/
private void setSnappedToGear(boolean snapped) {
mGearSnappedOnLeft = (mCurrIconRow != null) ? mCurrIconRow.isIconOnLeft() : false;
mGearSnappedTo = snapped && mCurrIconRow != null;
}
/**
* Returns the horizontal space in pixels required to display the gear behind a
* notification.
*/
private float getSpaceForGear(View view) {
if (view instanceof ExpandableNotificationRow) {
return ((ExpandableNotificationRow) view).getSpaceForGear();
}
return 0;
}
private void checkForDrag() {
if (mCheckForDrag == null || !mHandler.hasCallbacks(mCheckForDrag)) {
mCheckForDrag = new CheckForDrag();
mHandler.postDelayed(mCheckForDrag, SHOW_GEAR_DELAY);
}
}
private void cancelCheckForDrag() {
if (mCurrIconRow != null) {
mCurrIconRow.cancelFadeAnimator();
}
mHandler.removeCallbacks(mCheckForDrag);
}
private final class CheckForDrag implements Runnable {
@Override
public void run() {
if (mTranslatingParentView == null) {
return;
}
final float translation = getTranslation(mTranslatingParentView);
final float absTransX = Math.abs(translation);
final float bounceBackToGearWidth = getSpaceForGear(mTranslatingParentView);
final float notiThreshold = getSize(mTranslatingParentView) * 0.4f;
if ((mCurrIconRow != null && (!mCurrIconRow.isVisible()
|| mCurrIconRow.isIconLocationChange(translation)))
&& absTransX >= bounceBackToGearWidth * 0.4
&& absTransX < notiThreshold) {
// Fade in the gear
mCurrIconRow.fadeInSettings(translation > 0 /* fromLeft */, translation,
notiThreshold);
}
}
}
public void resetExposedGearView(boolean animate, boolean force) {
if (mGearExposedView == null
|| (!force && mGearExposedView == mTranslatingParentView)) {
// If no gear is showing or it's showing for this view we do nothing.
return;
}
final View prevGearExposedView = mGearExposedView;
if (animate) {
Animator anim = getViewTranslationAnimator(prevGearExposedView,
0 /* leftTarget */, null /* updateListener */);
if (anim != null) {
anim.start();
}
} else if (mGearExposedView instanceof ExpandableNotificationRow) {
((ExpandableNotificationRow) mGearExposedView).resetTranslation();
}
mGearExposedView = null;
mGearSnappedTo = false;
}
}
private void updateContinuousShadowDrawing() {
boolean continuousShadowUpdate = mAnimationRunning
|| !mAmbientState.getDraggedViews().isEmpty();
if (continuousShadowUpdate != mContinuousShadowUpdate) {
if (continuousShadowUpdate) {
getViewTreeObserver().addOnPreDrawListener(mShadowUpdater);
} else {
getViewTreeObserver().removeOnPreDrawListener(mShadowUpdater);
}
mContinuousShadowUpdate = continuousShadowUpdate;
}
}
public void resetExposedGearView(boolean animate, boolean force) {
mSwipeHelper.resetExposedGearView(animate, force);
}
public void closeControlsIfOutsideTouch(MotionEvent ev) {
mSwipeHelper.closeControlsIfOutsideTouch(ev);
}
static class AnimationEvent {
static AnimationFilter[] FILTERS = new AnimationFilter[] {
// ANIMATION_TYPE_ADD
new AnimationFilter()
.animateShadowAlpha()
.animateHeight()
.animateTopInset()
.animateY()
.animateZ()
.hasDelays(),
// ANIMATION_TYPE_REMOVE
new AnimationFilter()
.animateShadowAlpha()
.animateHeight()
.animateTopInset()
.animateY()
.animateZ()
.hasDelays(),
// ANIMATION_TYPE_REMOVE_SWIPED_OUT
new AnimationFilter()
.animateShadowAlpha()
.animateHeight()
.animateTopInset()
.animateY()
.animateZ()
.hasDelays(),
// ANIMATION_TYPE_TOP_PADDING_CHANGED
new AnimationFilter()
.animateShadowAlpha()
.animateHeight()
.animateTopInset()
.animateY()
.animateDimmed()
.animateZ(),
// ANIMATION_TYPE_START_DRAG
new AnimationFilter()
.animateShadowAlpha(),
// ANIMATION_TYPE_SNAP_BACK
new AnimationFilter()
.animateShadowAlpha()
.animateHeight(),
// ANIMATION_TYPE_ACTIVATED_CHILD
new AnimationFilter()
.animateZ(),
// ANIMATION_TYPE_DIMMED
new AnimationFilter()
.animateDimmed(),
// ANIMATION_TYPE_CHANGE_POSITION
new AnimationFilter()
.animateAlpha() // maybe the children change positions
.animateShadowAlpha()
.animateHeight()
.animateTopInset()
.animateY()
.animateZ(),
// ANIMATION_TYPE_DARK
new AnimationFilter()
.animateDark()
.hasDelays(),
// ANIMATION_TYPE_GO_TO_FULL_SHADE
new AnimationFilter()
.animateShadowAlpha()
.animateHeight()
.animateTopInset()
.animateY()
.animateDimmed()
.animateZ()
.hasDelays(),
// ANIMATION_TYPE_HIDE_SENSITIVE
new AnimationFilter()
.animateHideSensitive(),
// ANIMATION_TYPE_VIEW_RESIZE
new AnimationFilter()
.animateShadowAlpha()
.animateHeight()
.animateTopInset()
.animateY()
.animateZ(),
// ANIMATION_TYPE_GROUP_EXPANSION_CHANGED
new AnimationFilter()
.animateAlpha()
.animateShadowAlpha()
.animateHeight()
.animateTopInset()
.animateY()
.animateZ(),
// ANIMATION_TYPE_HEADS_UP_APPEAR
new AnimationFilter()
.animateShadowAlpha()
.animateHeight()
.animateTopInset()
.animateY()
.animateZ(),
// ANIMATION_TYPE_HEADS_UP_DISAPPEAR
new AnimationFilter()
.animateShadowAlpha()
.animateHeight()
.animateTopInset()
.animateY()
.animateZ(),
// ANIMATION_TYPE_HEADS_UP_DISAPPEAR_CLICK
new AnimationFilter()
.animateShadowAlpha()
.animateHeight()
.animateTopInset()
.animateY()
.animateZ()
.hasDelays(),
// ANIMATION_TYPE_HEADS_UP_OTHER
new AnimationFilter()
.animateShadowAlpha()
.animateHeight()
.animateTopInset()
.animateY()
.animateZ(),
// ANIMATION_TYPE_EVERYTHING
new AnimationFilter()
.animateAlpha()
.animateShadowAlpha()
.animateDark()
.animateDimmed()
.animateHideSensitive()
.animateHeight()
.animateTopInset()
.animateY()
.animateZ(),
};
static int[] LENGTHS = new int[] {
// ANIMATION_TYPE_ADD
StackStateAnimator.ANIMATION_DURATION_APPEAR_DISAPPEAR,
// ANIMATION_TYPE_REMOVE
StackStateAnimator.ANIMATION_DURATION_APPEAR_DISAPPEAR,
// ANIMATION_TYPE_REMOVE_SWIPED_OUT
StackStateAnimator.ANIMATION_DURATION_STANDARD,
// ANIMATION_TYPE_TOP_PADDING_CHANGED
StackStateAnimator.ANIMATION_DURATION_STANDARD,
// ANIMATION_TYPE_START_DRAG
StackStateAnimator.ANIMATION_DURATION_STANDARD,
// ANIMATION_TYPE_SNAP_BACK
StackStateAnimator.ANIMATION_DURATION_STANDARD,
// ANIMATION_TYPE_ACTIVATED_CHILD
StackStateAnimator.ANIMATION_DURATION_DIMMED_ACTIVATED,
// ANIMATION_TYPE_DIMMED
StackStateAnimator.ANIMATION_DURATION_DIMMED_ACTIVATED,
// ANIMATION_TYPE_CHANGE_POSITION
StackStateAnimator.ANIMATION_DURATION_STANDARD,
// ANIMATION_TYPE_DARK
StackStateAnimator.ANIMATION_DURATION_STANDARD,
// ANIMATION_TYPE_GO_TO_FULL_SHADE
StackStateAnimator.ANIMATION_DURATION_GO_TO_FULL_SHADE,
// ANIMATION_TYPE_HIDE_SENSITIVE
StackStateAnimator.ANIMATION_DURATION_STANDARD,
// ANIMATION_TYPE_VIEW_RESIZE
StackStateAnimator.ANIMATION_DURATION_STANDARD,
// ANIMATION_TYPE_GROUP_EXPANSION_CHANGED
StackStateAnimator.ANIMATION_DURATION_STANDARD,
// ANIMATION_TYPE_HEADS_UP_APPEAR
StackStateAnimator.ANIMATION_DURATION_HEADS_UP_APPEAR,
// ANIMATION_TYPE_HEADS_UP_DISAPPEAR
StackStateAnimator.ANIMATION_DURATION_HEADS_UP_DISAPPEAR,
// ANIMATION_TYPE_HEADS_UP_DISAPPEAR_CLICK
StackStateAnimator.ANIMATION_DURATION_HEADS_UP_DISAPPEAR,
// ANIMATION_TYPE_HEADS_UP_OTHER
StackStateAnimator.ANIMATION_DURATION_STANDARD,
// ANIMATION_TYPE_EVERYTHING
StackStateAnimator.ANIMATION_DURATION_STANDARD,
};
static final int ANIMATION_TYPE_ADD = 0;
static final int ANIMATION_TYPE_REMOVE = 1;
static final int ANIMATION_TYPE_REMOVE_SWIPED_OUT = 2;
static final int ANIMATION_TYPE_TOP_PADDING_CHANGED = 3;
static final int ANIMATION_TYPE_START_DRAG = 4;
static final int ANIMATION_TYPE_SNAP_BACK = 5;
static final int ANIMATION_TYPE_ACTIVATED_CHILD = 6;
static final int ANIMATION_TYPE_DIMMED = 7;
static final int ANIMATION_TYPE_CHANGE_POSITION = 8;
static final int ANIMATION_TYPE_DARK = 9;
static final int ANIMATION_TYPE_GO_TO_FULL_SHADE = 10;
static final int ANIMATION_TYPE_HIDE_SENSITIVE = 11;
static final int ANIMATION_TYPE_VIEW_RESIZE = 12;
static final int ANIMATION_TYPE_GROUP_EXPANSION_CHANGED = 13;
static final int ANIMATION_TYPE_HEADS_UP_APPEAR = 14;
static final int ANIMATION_TYPE_HEADS_UP_DISAPPEAR = 15;
static final int ANIMATION_TYPE_HEADS_UP_DISAPPEAR_CLICK = 16;
static final int ANIMATION_TYPE_HEADS_UP_OTHER = 17;
static final int ANIMATION_TYPE_EVERYTHING = 18;
static final int DARK_ANIMATION_ORIGIN_INDEX_ABOVE = -1;
static final int DARK_ANIMATION_ORIGIN_INDEX_BELOW = -2;
final long eventStartTime;
final View changingView;
final int animationType;
final AnimationFilter filter;
final long length;
View viewAfterChangingView;
int darkAnimationOriginIndex;
boolean headsUpFromBottom;
AnimationEvent(View view, int type) {
this(view, type, LENGTHS[type]);
}
AnimationEvent(View view, int type, long length) {
eventStartTime = AnimationUtils.currentAnimationTimeMillis();
changingView = view;
animationType = type;
filter = FILTERS[type];
this.length = length;
}
/**
* Combines the length of several animation events into a single value.
*
* @param events The events of the lengths to combine.
* @return The combined length. Depending on the event types, this might be the maximum of
* all events or the length of a specific event.
*/
static long combineLength(ArrayList<AnimationEvent> events) {
long length = 0;
int size = events.size();
for (int i = 0; i < size; i++) {
AnimationEvent event = events.get(i);
length = Math.max(length, event.length);
if (event.animationType == ANIMATION_TYPE_GO_TO_FULL_SHADE) {
return event.length;
}
}
return length;
}
}
}