/*
* 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.internal.widget;
import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Rect;
import android.os.Bundle;
import android.os.Parcel;
import android.os.Parcelable;
import android.util.AttributeSet;
import android.util.Log;
import android.view.MotionEvent;
import android.view.VelocityTracker;
import android.view.View;
import android.view.ViewConfiguration;
import android.view.ViewGroup;
import android.view.ViewParent;
import android.view.ViewTreeObserver;
import android.view.accessibility.AccessibilityEvent;
import android.view.accessibility.AccessibilityNodeInfo;
import android.view.accessibility.AccessibilityNodeInfo.AccessibilityAction;
import android.view.animation.AnimationUtils;
import android.widget.AbsListView;
import android.widget.OverScroller;
import com.android.internal.R;
public class ResolverDrawerLayout extends ViewGroup {
private static final String TAG = "ResolverDrawerLayout";
/**
* Max width of the whole drawer layout
*/
private int mMaxWidth;
/**
* Max total visible height of views not marked always-show when in the closed/initial state
*/
private int mMaxCollapsedHeight;
/**
* Max total visible height of views not marked always-show when in the closed/initial state
* when a default option is present
*/
private int mMaxCollapsedHeightSmall;
private boolean mSmallCollapsed;
/**
* Move views down from the top by this much in px
*/
private float mCollapseOffset;
private int mCollapsibleHeight;
private int mUncollapsibleHeight;
private int mTopOffset;
private boolean mIsDragging;
private boolean mOpenOnClick;
private boolean mOpenOnLayout;
private boolean mDismissOnScrollerFinished;
private final int mTouchSlop;
private final float mMinFlingVelocity;
private final OverScroller mScroller;
private final VelocityTracker mVelocityTracker;
private OnDismissedListener mOnDismissedListener;
private RunOnDismissedListener mRunOnDismissedListener;
private float mInitialTouchX;
private float mInitialTouchY;
private float mLastTouchY;
private int mActivePointerId = MotionEvent.INVALID_POINTER_ID;
private final Rect mTempRect = new Rect();
private final ViewTreeObserver.OnTouchModeChangeListener mTouchModeChangeListener =
new ViewTreeObserver.OnTouchModeChangeListener() {
@Override
public void onTouchModeChanged(boolean isInTouchMode) {
if (!isInTouchMode && hasFocus() && isDescendantClipped(getFocusedChild())) {
smoothScrollTo(0, 0);
}
}
};
public ResolverDrawerLayout(Context context) {
this(context, null);
}
public ResolverDrawerLayout(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public ResolverDrawerLayout(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
final TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.ResolverDrawerLayout,
defStyleAttr, 0);
mMaxWidth = a.getDimensionPixelSize(R.styleable.ResolverDrawerLayout_maxWidth, -1);
mMaxCollapsedHeight = a.getDimensionPixelSize(
R.styleable.ResolverDrawerLayout_maxCollapsedHeight, 0);
mMaxCollapsedHeightSmall = a.getDimensionPixelSize(
R.styleable.ResolverDrawerLayout_maxCollapsedHeightSmall,
mMaxCollapsedHeight);
a.recycle();
mScroller = new OverScroller(context, AnimationUtils.loadInterpolator(context,
android.R.interpolator.decelerate_quint));
mVelocityTracker = VelocityTracker.obtain();
final ViewConfiguration vc = ViewConfiguration.get(context);
mTouchSlop = vc.getScaledTouchSlop();
mMinFlingVelocity = vc.getScaledMinimumFlingVelocity();
setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES);
}
public void setSmallCollapsed(boolean smallCollapsed) {
mSmallCollapsed = smallCollapsed;
requestLayout();
}
public boolean isSmallCollapsed() {
return mSmallCollapsed;
}
public boolean isCollapsed() {
return mCollapseOffset > 0;
}
public void setCollapsed(boolean collapsed) {
if (!isLaidOut()) {
mOpenOnLayout = collapsed;
} else {
smoothScrollTo(collapsed ? mCollapsibleHeight : 0, 0);
}
}
private boolean isMoving() {
return mIsDragging || !mScroller.isFinished();
}
private int getMaxCollapsedHeight() {
return isSmallCollapsed() ? mMaxCollapsedHeightSmall : mMaxCollapsedHeight;
}
public void setOnDismissedListener(OnDismissedListener listener) {
mOnDismissedListener = listener;
}
@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
final int action = ev.getActionMasked();
if (action == MotionEvent.ACTION_DOWN) {
mVelocityTracker.clear();
}
mVelocityTracker.addMovement(ev);
switch (action) {
case MotionEvent.ACTION_DOWN: {
final float x = ev.getX();
final float y = ev.getY();
mInitialTouchX = x;
mInitialTouchY = mLastTouchY = y;
mOpenOnClick = isListChildUnderClipped(x, y) && mCollapsibleHeight > 0;
}
break;
case MotionEvent.ACTION_MOVE: {
final float x = ev.getX();
final float y = ev.getY();
final float dy = y - mInitialTouchY;
if (Math.abs(dy) > mTouchSlop && findChildUnder(x, y) != null &&
(getNestedScrollAxes() & SCROLL_AXIS_VERTICAL) == 0) {
mActivePointerId = ev.getPointerId(0);
mIsDragging = true;
mLastTouchY = Math.max(mLastTouchY - mTouchSlop,
Math.min(mLastTouchY + dy, mLastTouchY + mTouchSlop));
}
}
break;
case MotionEvent.ACTION_POINTER_UP: {
onSecondaryPointerUp(ev);
}
break;
case MotionEvent.ACTION_CANCEL:
case MotionEvent.ACTION_UP: {
resetTouch();
}
break;
}
if (mIsDragging) {
abortAnimation();
}
return mIsDragging || mOpenOnClick;
}
@Override
public boolean onTouchEvent(MotionEvent ev) {
final int action = ev.getActionMasked();
mVelocityTracker.addMovement(ev);
boolean handled = false;
switch (action) {
case MotionEvent.ACTION_DOWN: {
final float x = ev.getX();
final float y = ev.getY();
mInitialTouchX = x;
mInitialTouchY = mLastTouchY = y;
mActivePointerId = ev.getPointerId(0);
final boolean hitView = findChildUnder(mInitialTouchX, mInitialTouchY) != null;
handled = mOnDismissedListener != null || mCollapsibleHeight > 0;
mIsDragging = hitView && handled;
abortAnimation();
}
break;
case MotionEvent.ACTION_MOVE: {
int index = ev.findPointerIndex(mActivePointerId);
if (index < 0) {
Log.e(TAG, "Bad pointer id " + mActivePointerId + ", resetting");
index = 0;
mActivePointerId = ev.getPointerId(0);
mInitialTouchX = ev.getX();
mInitialTouchY = mLastTouchY = ev.getY();
}
final float x = ev.getX(index);
final float y = ev.getY(index);
if (!mIsDragging) {
final float dy = y - mInitialTouchY;
if (Math.abs(dy) > mTouchSlop && findChildUnder(x, y) != null) {
handled = mIsDragging = true;
mLastTouchY = Math.max(mLastTouchY - mTouchSlop,
Math.min(mLastTouchY + dy, mLastTouchY + mTouchSlop));
}
}
if (mIsDragging) {
final float dy = y - mLastTouchY;
performDrag(dy);
}
mLastTouchY = y;
}
break;
case MotionEvent.ACTION_POINTER_DOWN: {
final int pointerIndex = ev.getActionIndex();
final int pointerId = ev.getPointerId(pointerIndex);
mActivePointerId = pointerId;
mInitialTouchX = ev.getX(pointerIndex);
mInitialTouchY = mLastTouchY = ev.getY(pointerIndex);
}
break;
case MotionEvent.ACTION_POINTER_UP: {
onSecondaryPointerUp(ev);
}
break;
case MotionEvent.ACTION_UP: {
final boolean wasDragging = mIsDragging;
mIsDragging = false;
if (!wasDragging && findChildUnder(mInitialTouchX, mInitialTouchY) == null &&
findChildUnder(ev.getX(), ev.getY()) == null) {
if (mOnDismissedListener != null) {
dispatchOnDismissed();
resetTouch();
return true;
}
}
if (mOpenOnClick && Math.abs(ev.getX() - mInitialTouchX) < mTouchSlop &&
Math.abs(ev.getY() - mInitialTouchY) < mTouchSlop) {
smoothScrollTo(0, 0);
return true;
}
mVelocityTracker.computeCurrentVelocity(1000);
final float yvel = mVelocityTracker.getYVelocity(mActivePointerId);
if (Math.abs(yvel) > mMinFlingVelocity) {
if (mOnDismissedListener != null
&& yvel > 0 && mCollapseOffset > mCollapsibleHeight) {
smoothScrollTo(mCollapsibleHeight + mUncollapsibleHeight, yvel);
mDismissOnScrollerFinished = true;
} else {
smoothScrollTo(yvel < 0 ? 0 : mCollapsibleHeight, yvel);
}
} else {
smoothScrollTo(
mCollapseOffset < mCollapsibleHeight / 2 ? 0 : mCollapsibleHeight, 0);
}
resetTouch();
}
break;
case MotionEvent.ACTION_CANCEL: {
if (mIsDragging) {
smoothScrollTo(
mCollapseOffset < mCollapsibleHeight / 2 ? 0 : mCollapsibleHeight, 0);
}
resetTouch();
return true;
}
}
return handled;
}
private void onSecondaryPointerUp(MotionEvent ev) {
final int pointerIndex = ev.getActionIndex();
final int pointerId = ev.getPointerId(pointerIndex);
if (pointerId == mActivePointerId) {
// This was our active pointer going up. Choose a new
// active pointer and adjust accordingly.
final int newPointerIndex = pointerIndex == 0 ? 1 : 0;
mInitialTouchX = ev.getX(newPointerIndex);
mInitialTouchY = mLastTouchY = ev.getY(newPointerIndex);
mActivePointerId = ev.getPointerId(newPointerIndex);
}
}
private void resetTouch() {
mActivePointerId = MotionEvent.INVALID_POINTER_ID;
mIsDragging = false;
mOpenOnClick = false;
mInitialTouchX = mInitialTouchY = mLastTouchY = 0;
mVelocityTracker.clear();
}
@Override
public void computeScroll() {
super.computeScroll();
if (mScroller.computeScrollOffset()) {
final boolean keepGoing = !mScroller.isFinished();
performDrag(mScroller.getCurrY() - mCollapseOffset);
if (keepGoing) {
postInvalidateOnAnimation();
} else if (mDismissOnScrollerFinished && mOnDismissedListener != null) {
mRunOnDismissedListener = new RunOnDismissedListener();
post(mRunOnDismissedListener);
}
}
}
private void abortAnimation() {
mScroller.abortAnimation();
mRunOnDismissedListener = null;
mDismissOnScrollerFinished = false;
}
private float performDrag(float dy) {
final float newPos = Math.max(0, Math.min(mCollapseOffset + dy,
mCollapsibleHeight + mUncollapsibleHeight));
if (newPos != mCollapseOffset) {
dy = newPos - mCollapseOffset;
final int childCount = getChildCount();
for (int i = 0; i < childCount; i++) {
final View child = getChildAt(i);
final LayoutParams lp = (LayoutParams) child.getLayoutParams();
if (!lp.ignoreOffset) {
child.offsetTopAndBottom((int) dy);
}
}
final boolean isCollapsedOld = mCollapseOffset != 0;
mCollapseOffset = newPos;
mTopOffset += dy;
final boolean isCollapsedNew = newPos != 0;
if (isCollapsedOld != isCollapsedNew) {
notifyViewAccessibilityStateChangedIfNeeded(
AccessibilityEvent.CONTENT_CHANGE_TYPE_UNDEFINED);
}
postInvalidateOnAnimation();
return dy;
}
return 0;
}
void dispatchOnDismissed() {
if (mOnDismissedListener != null) {
mOnDismissedListener.onDismissed();
}
if (mRunOnDismissedListener != null) {
removeCallbacks(mRunOnDismissedListener);
mRunOnDismissedListener = null;
}
}
private void smoothScrollTo(int yOffset, float velocity) {
abortAnimation();
final int sy = (int) mCollapseOffset;
int dy = yOffset - sy;
if (dy == 0) {
return;
}
final int height = getHeight();
final int halfHeight = height / 2;
final float distanceRatio = Math.min(1f, 1.0f * Math.abs(dy) / height);
final float distance = halfHeight + halfHeight *
distanceInfluenceForSnapDuration(distanceRatio);
int duration = 0;
velocity = Math.abs(velocity);
if (velocity > 0) {
duration = 4 * Math.round(1000 * Math.abs(distance / velocity));
} else {
final float pageDelta = (float) Math.abs(dy) / height;
duration = (int) ((pageDelta + 1) * 100);
}
duration = Math.min(duration, 300);
mScroller.startScroll(0, sy, 0, dy, duration);
postInvalidateOnAnimation();
}
private float distanceInfluenceForSnapDuration(float f) {
f -= 0.5f; // center the values about 0.
f *= 0.3f * Math.PI / 2.0f;
return (float) Math.sin(f);
}
/**
* Note: this method doesn't take Z into account for overlapping views
* since it is only used in contexts where this doesn't affect the outcome.
*/
private View findChildUnder(float x, float y) {
return findChildUnder(this, x, y);
}
private static View findChildUnder(ViewGroup parent, float x, float y) {
final int childCount = parent.getChildCount();
for (int i = childCount - 1; i >= 0; i--) {
final View child = parent.getChildAt(i);
if (isChildUnder(child, x, y)) {
return child;
}
}
return null;
}
private View findListChildUnder(float x, float y) {
View v = findChildUnder(x, y);
while (v != null) {
x -= v.getX();
y -= v.getY();
if (v instanceof AbsListView) {
// One more after this.
return findChildUnder((ViewGroup) v, x, y);
}
v = v instanceof ViewGroup ? findChildUnder((ViewGroup) v, x, y) : null;
}
return v;
}
/**
* This only checks clipping along the bottom edge.
*/
private boolean isListChildUnderClipped(float x, float y) {
final View listChild = findListChildUnder(x, y);
return listChild != null && isDescendantClipped(listChild);
}
private boolean isDescendantClipped(View child) {
mTempRect.set(0, 0, child.getWidth(), child.getHeight());
offsetDescendantRectToMyCoords(child, mTempRect);
View directChild;
if (child.getParent() == this) {
directChild = child;
} else {
View v = child;
ViewParent p = child.getParent();
while (p != this) {
v = (View) p;
p = v.getParent();
}
directChild = v;
}
// ResolverDrawerLayout lays out vertically in child order;
// the next view and forward is what to check against.
int clipEdge = getHeight() - getPaddingBottom();
final int childCount = getChildCount();
for (int i = indexOfChild(directChild) + 1; i < childCount; i++) {
final View nextChild = getChildAt(i);
if (nextChild.getVisibility() == GONE) {
continue;
}
clipEdge = Math.min(clipEdge, nextChild.getTop());
}
return mTempRect.bottom > clipEdge;
}
private static boolean isChildUnder(View child, float x, float y) {
final float left = child.getX();
final float top = child.getY();
final float right = left + child.getWidth();
final float bottom = top + child.getHeight();
return x >= left && y >= top && x < right && y < bottom;
}
@Override
public void requestChildFocus(View child, View focused) {
super.requestChildFocus(child, focused);
if (!isInTouchMode() && isDescendantClipped(focused)) {
smoothScrollTo(0, 0);
}
}
@Override
protected void onAttachedToWindow() {
super.onAttachedToWindow();
getViewTreeObserver().addOnTouchModeChangeListener(mTouchModeChangeListener);
}
@Override
protected void onDetachedFromWindow() {
super.onDetachedFromWindow();
getViewTreeObserver().removeOnTouchModeChangeListener(mTouchModeChangeListener);
abortAnimation();
}
@Override
public boolean onStartNestedScroll(View child, View target, int nestedScrollAxes) {
return (nestedScrollAxes & View.SCROLL_AXIS_VERTICAL) != 0;
}
@Override
public void onNestedScrollAccepted(View child, View target, int axes) {
super.onNestedScrollAccepted(child, target, axes);
}
@Override
public void onStopNestedScroll(View child) {
super.onStopNestedScroll(child);
if (mScroller.isFinished()) {
smoothScrollTo(mCollapseOffset < mCollapsibleHeight / 2 ? 0 : mCollapsibleHeight, 0);
}
}
@Override
public void onNestedScroll(View target, int dxConsumed, int dyConsumed,
int dxUnconsumed, int dyUnconsumed) {
if (dyUnconsumed < 0) {
performDrag(-dyUnconsumed);
}
}
@Override
public void onNestedPreScroll(View target, int dx, int dy, int[] consumed) {
if (dy > 0) {
consumed[1] = (int) -performDrag(-dy);
}
}
@Override
public boolean onNestedPreFling(View target, float velocityX, float velocityY) {
if (velocityY > mMinFlingVelocity && mCollapseOffset != 0) {
smoothScrollTo(0, velocityY);
return true;
}
return false;
}
@Override
public boolean onNestedFling(View target, float velocityX, float velocityY, boolean consumed) {
if (!consumed && Math.abs(velocityY) > mMinFlingVelocity) {
if (mOnDismissedListener != null
&& velocityY < 0 && mCollapseOffset > mCollapsibleHeight) {
smoothScrollTo(mCollapsibleHeight + mUncollapsibleHeight, velocityY);
mDismissOnScrollerFinished = true;
} else {
smoothScrollTo(velocityY > 0 ? 0 : mCollapsibleHeight, velocityY);
}
return true;
}
return false;
}
@Override
public boolean onNestedPrePerformAccessibilityAction(View target, int action, Bundle args) {
if (super.onNestedPrePerformAccessibilityAction(target, action, args)) {
return true;
}
if (action == AccessibilityNodeInfo.ACTION_SCROLL_FORWARD && mCollapseOffset != 0) {
smoothScrollTo(0, 0);
return true;
}
return false;
}
@Override
public CharSequence getAccessibilityClassName() {
// Since we support scrolling, make this ViewGroup look like a
// ScrollView. This is kind of a hack until we have support for
// specifying auto-scroll behavior.
return android.widget.ScrollView.class.getName();
}
@Override
public void onInitializeAccessibilityNodeInfoInternal(AccessibilityNodeInfo info) {
super.onInitializeAccessibilityNodeInfoInternal(info);
if (isEnabled()) {
if (mCollapseOffset != 0) {
info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_FORWARD);
info.setScrollable(true);
}
}
// This view should never get accessibility focus, but it's interactive
// via nested scrolling, so we can't hide it completely.
info.removeAction(AccessibilityAction.ACTION_ACCESSIBILITY_FOCUS);
}
@Override
public boolean performAccessibilityActionInternal(int action, Bundle arguments) {
if (action == AccessibilityAction.ACTION_ACCESSIBILITY_FOCUS.getId()) {
// This view should never get accessibility focus.
return false;
}
if (super.performAccessibilityActionInternal(action, arguments)) {
return true;
}
if (action == AccessibilityNodeInfo.ACTION_SCROLL_FORWARD && mCollapseOffset != 0) {
smoothScrollTo(0, 0);
return true;
}
return false;
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
final int sourceWidth = MeasureSpec.getSize(widthMeasureSpec);
int widthSize = sourceWidth;
int heightSize = MeasureSpec.getSize(heightMeasureSpec);
// Single-use layout; just ignore the mode and use available space.
// Clamp to maxWidth.
if (mMaxWidth >= 0) {
widthSize = Math.min(widthSize, mMaxWidth);
}
final int widthSpec = MeasureSpec.makeMeasureSpec(widthSize, MeasureSpec.EXACTLY);
final int heightSpec = MeasureSpec.makeMeasureSpec(heightSize, MeasureSpec.EXACTLY);
final int widthPadding = getPaddingLeft() + getPaddingRight();
int heightUsed = getPaddingTop() + getPaddingBottom();
// Measure always-show children first.
final int childCount = getChildCount();
for (int i = 0; i < childCount; i++) {
final View child = getChildAt(i);
final LayoutParams lp = (LayoutParams) child.getLayoutParams();
if (lp.alwaysShow && child.getVisibility() != GONE) {
measureChildWithMargins(child, widthSpec, widthPadding, heightSpec, heightUsed);
heightUsed += lp.topMargin + child.getMeasuredHeight() + lp.bottomMargin;
}
}
final int alwaysShowHeight = heightUsed;
// And now the rest.
for (int i = 0; i < childCount; i++) {
final View child = getChildAt(i);
final LayoutParams lp = (LayoutParams) child.getLayoutParams();
if (!lp.alwaysShow && child.getVisibility() != GONE) {
measureChildWithMargins(child, widthSpec, widthPadding, heightSpec, heightUsed);
heightUsed += lp.topMargin + child.getMeasuredHeight() + lp.bottomMargin;
}
}
final int oldCollapsibleHeight = mCollapsibleHeight;
mCollapsibleHeight = Math.max(0,
heightUsed - alwaysShowHeight - getMaxCollapsedHeight());
mUncollapsibleHeight = heightUsed - mCollapsibleHeight;
if (isLaidOut()) {
final boolean isCollapsedOld = mCollapseOffset != 0;
if (oldCollapsibleHeight < mCollapsibleHeight
&& mCollapseOffset == oldCollapsibleHeight) {
// Stay closed even at the new height.
mCollapseOffset = mCollapsibleHeight;
} else {
mCollapseOffset = Math.min(mCollapseOffset, mCollapsibleHeight);
}
final boolean isCollapsedNew = mCollapseOffset != 0;
if (isCollapsedOld != isCollapsedNew) {
notifyViewAccessibilityStateChangedIfNeeded(
AccessibilityEvent.CONTENT_CHANGE_TYPE_UNDEFINED);
}
} else {
// Start out collapsed at first unless we restored state for otherwise
mCollapseOffset = mOpenOnLayout ? 0 : mCollapsibleHeight;
}
mTopOffset = Math.max(0, heightSize - heightUsed) + (int) mCollapseOffset;
setMeasuredDimension(sourceWidth, heightSize);
}
@Override
protected void onLayout(boolean changed, int l, int t, int r, int b) {
final int width = getWidth();
int ypos = mTopOffset;
int leftEdge = getPaddingLeft();
int rightEdge = width - getPaddingRight();
final int childCount = getChildCount();
for (int i = 0; i < childCount; i++) {
final View child = getChildAt(i);
final LayoutParams lp = (LayoutParams) child.getLayoutParams();
if (child.getVisibility() == GONE) {
continue;
}
int top = ypos + lp.topMargin;
if (lp.ignoreOffset) {
top -= mCollapseOffset;
}
final int bottom = top + child.getMeasuredHeight();
final int childWidth = child.getMeasuredWidth();
final int widthAvailable = rightEdge - leftEdge;
final int left = leftEdge + (widthAvailable - childWidth) / 2;
final int right = left + childWidth;
child.layout(left, top, right, bottom);
ypos = bottom + lp.bottomMargin;
}
}
@Override
public ViewGroup.LayoutParams generateLayoutParams(AttributeSet attrs) {
return new LayoutParams(getContext(), attrs);
}
@Override
protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) {
if (p instanceof LayoutParams) {
return new LayoutParams((LayoutParams) p);
} else if (p instanceof MarginLayoutParams) {
return new LayoutParams((MarginLayoutParams) p);
}
return new LayoutParams(p);
}
@Override
protected ViewGroup.LayoutParams generateDefaultLayoutParams() {
return new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT);
}
@Override
protected Parcelable onSaveInstanceState() {
final SavedState ss = new SavedState(super.onSaveInstanceState());
ss.open = mCollapsibleHeight > 0 && mCollapseOffset == 0;
return ss;
}
@Override
protected void onRestoreInstanceState(Parcelable state) {
final SavedState ss = (SavedState) state;
super.onRestoreInstanceState(ss.getSuperState());
mOpenOnLayout = ss.open;
}
public static class LayoutParams extends MarginLayoutParams {
public boolean alwaysShow;
public boolean ignoreOffset;
public LayoutParams(Context c, AttributeSet attrs) {
super(c, attrs);
final TypedArray a = c.obtainStyledAttributes(attrs,
R.styleable.ResolverDrawerLayout_LayoutParams);
alwaysShow = a.getBoolean(
R.styleable.ResolverDrawerLayout_LayoutParams_layout_alwaysShow,
false);
ignoreOffset = a.getBoolean(
R.styleable.ResolverDrawerLayout_LayoutParams_layout_ignoreOffset,
false);
a.recycle();
}
public LayoutParams(int width, int height) {
super(width, height);
}
public LayoutParams(LayoutParams source) {
super(source);
this.alwaysShow = source.alwaysShow;
this.ignoreOffset = source.ignoreOffset;
}
public LayoutParams(MarginLayoutParams source) {
super(source);
}
public LayoutParams(ViewGroup.LayoutParams source) {
super(source);
}
}
static class SavedState extends BaseSavedState {
boolean open;
SavedState(Parcelable superState) {
super(superState);
}
private SavedState(Parcel in) {
super(in);
open = in.readInt() != 0;
}
@Override
public void writeToParcel(Parcel out, int flags) {
super.writeToParcel(out, flags);
out.writeInt(open ? 1 : 0);
}
public static final Parcelable.Creator<SavedState> CREATOR =
new Parcelable.Creator<SavedState>() {
@Override
public SavedState createFromParcel(Parcel in) {
return new SavedState(in);
}
@Override
public SavedState[] newArray(int size) {
return new SavedState[size];
}
};
}
public interface OnDismissedListener {
public void onDismissed();
}
private class RunOnDismissedListener implements Runnable {
@Override
public void run() {
dispatchOnDismissed();
}
}
}