/*
* Copyright (C) 2006 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 android.view;
import java.util.ArrayList;
import com.intel.mpt.annotation.MayloonStubAnnotation;
import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.graphics.Rect;
import android.graphics.RectF;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import android.util.Log;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.view.animation.LayoutAnimationController;
import android.view.animation.Transformation;
public abstract class ViewGroup extends View implements ViewParent, ViewManager {
private static final boolean DBG = false;
private static final String TAG = "ViewGroup";
/**
* Views which have been hidden or removed which need to be animated on
* their way out. This field should be made private, so it is hidden from
* the SDK. {@hide}
*/
protected ArrayList<View> mDisappearingChildren;
/**
* Listener used to propagate events indicating when children are added
* and/or removed from a view group. This field should be made private, so
* it is hidden from the SDK. {@hide}
*/
protected OnHierarchyChangeListener mOnHierarchyChangeListener;
// The view contained within this ViewGroup that has or contains focus.
private View mFocused;
// The current transformation to apply on the child being drawn
private Transformation mChildTransformation;
private RectF mInvalidateRegion;
// Target of Motion events
private View mMotionTarget;
private final Rect mTempRect = new Rect();
// Layout animation
private LayoutAnimationController mLayoutAnimationController;
private Animation.AnimationListener mAnimationListener;
/**
* Internal flags.
*
* This field should be made private, so it is hidden from the SDK.
* {@hide}
*/
protected int mGroupFlags;
// When set, ViewGroup invalidates only the child's rectangle
// Set by default
private static final int FLAG_CLIP_CHILDREN = 0x1;
// When set, ViewGroup excludes the padding area from the invalidate rectangle
// Set by default
private static final int FLAG_CLIP_TO_PADDING = 0x2;
// When set, dispatchDraw() will invoke invalidate(); this is set by drawChild() when
// a child needs to be invalidated and FLAG_OPTIMIZE_INVALIDATE is set
private static final int FLAG_INVALIDATE_REQUIRED = 0x4;
// When set, dispatchDraw() will run the layout animation and unset the flag
private static final int FLAG_RUN_ANIMATION = 0x8;
// When set, there is either no layout animation on the ViewGroup or the layout
// animation is over
// Set by default
private static final int FLAG_ANIMATION_DONE = 0x10;
// If set, this ViewGroup has padding; if unset there is no padding and we don't need
// to clip it, even if FLAG_CLIP_TO_PADDING is set
private static final int FLAG_PADDING_NOT_NULL = 0x20;
// When set, this ViewGroup caches its children in a Bitmap before starting a layout animation
// Set by default
private static final int FLAG_ANIMATION_CACHE = 0x40;
// When set, this ViewGroup converts calls to invalidate(Rect) to invalidate() during a
// layout animation; this avoid clobbering the hierarchy
// Automatically set when the layout animation starts, depending on the animation's
// characteristics
private static final int FLAG_OPTIMIZE_INVALIDATE = 0x80;
// When set, the next call to drawChild() will clear mChildTransformation's matrix
private static final int FLAG_CLEAR_TRANSFORMATION = 0x100;
// When set, this ViewGroup invokes mAnimationListener.onAnimationEnd() and removes
// the children's Bitmap caches if necessary
// This flag is set when the layout animation is over (after FLAG_ANIMATION_DONE is set)
private static final int FLAG_NOTIFY_ANIMATION_LISTENER = 0x200;
/**
* When set, the drawing method will call {@link #getChildDrawingOrder(int, int)}
* to get the index of the child to draw for that iteration.
*
* @hide
*/
protected static final int FLAG_USE_CHILD_DRAWING_ORDER = 0x400;
/**
* When set, this ViewGroup supports static transformations on children; this causes
* {@link #getChildStaticTransformation(View, android.view.animation.Transformation)} to be
* invoked when a child is drawn.
*
* Any subclass overriding
* {@link #getChildStaticTransformation(View, android.view.animation.Transformation)} should
* set this flags in {@link #mGroupFlags}.
*
* {@hide}
*/
protected static final int FLAG_SUPPORT_STATIC_TRANSFORMATIONS = 0x800;
// When the previous drawChild() invocation used an alpha value that was lower than
// 1.0 and set it in mCachePaint
private static final int FLAG_ALPHA_LOWER_THAN_ONE = 0x1000;
/**
* When set, this ViewGroup's drawable states also include those
* of its children.
*/
private static final int FLAG_ADD_STATES_FROM_CHILDREN = 0x2000;
/**
* When set, this ViewGroup tries to always draw its children using their drawing cache.
*/
private static final int FLAG_ALWAYS_DRAWN_WITH_CACHE = 0x4000;
/**
* When set, and if FLAG_ALWAYS_DRAWN_WITH_CACHE is not set, this ViewGroup will try to
* draw its children with their drawing cache.
*/
private static final int FLAG_CHILDREN_DRAWN_WITH_CACHE = 0x8000;
/**
* When set, this group will go through its list of children to notify them of
* any drawable state change.
*/
private static final int FLAG_NOTIFY_CHILDREN_ON_DRAWABLE_STATE_CHANGE = 0x10000;
private static final int FLAG_MASK_FOCUSABILITY = 0x60000;
/**
* This view will get focus before any of its descendants.
*/
public static final int FOCUS_BEFORE_DESCENDANTS = 0x20000;
/**
* This view will get focus only if none of its descendants want it.
*/
public static final int FOCUS_AFTER_DESCENDANTS = 0x40000;
/**
* This view will block any of its descendants from getting focus, even
* if they are focusable.
*/
public static final int FOCUS_BLOCK_DESCENDANTS = 0x60000;
/**
* Used to map between enum in attrubutes and flag values.
*/
private static final int[] DESCENDANT_FOCUSABILITY_FLAGS =
{FOCUS_BEFORE_DESCENDANTS, FOCUS_AFTER_DESCENDANTS,
FOCUS_BLOCK_DESCENDANTS};
/**
* When set, this ViewGroup should not intercept touch events.
* {@hide}
*/
protected static final int FLAG_DISALLOW_INTERCEPT = 0x80000;
/**
* Used to indicate that no drawing cache should be kept in memory.
*/
public static final int PERSISTENT_NO_CACHE = 0x0;
/**
* Used to indicate that the animation drawing cache should be kept in memory.
*/
public static final int PERSISTENT_ANIMATION_CACHE = 0x1;
/**
* Used to indicate that the scrolling drawing cache should be kept in memory.
*/
public static final int PERSISTENT_SCROLLING_CACHE = 0x2;
/**
* Used to indicate that all drawing caches should be kept in memory.
*/
public static final int PERSISTENT_ALL_CACHES = 0x3;
/**
* We clip to padding when FLAG_CLIP_TO_PADDING and FLAG_PADDING_NOT_NULL
* are set at the same time.
*/
protected static final int CLIP_TO_PADDING_MASK = FLAG_CLIP_TO_PADDING
| FLAG_PADDING_NOT_NULL;
// Index of the child's left position in the mLocation array
private static final int CHILD_LEFT_INDEX = 0;
// Index of the child's top position in the mLocation array
private static final int CHILD_TOP_INDEX = 1;
private static final int ARRAY_INITIAL_CAPACITY = 12;
private static final int ARRAY_CAPACITY_INCREMENT = 12;
// Child views of this ViewGroup
private View[] mChildren;
// Number of valid children in the mChildren array, the rest should be null or not
// considered as children
private int mChildrenCount;
private ArrayList<View> mPendingChildren;
public ViewGroup(Context context) {
super(context);
initViewGroup();
}
public ViewGroup(Context context, AttributeSet attrs) {
super(context, attrs);
initViewGroup();
initFromAttributes(context, attrs);
}
public ViewGroup(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
initViewGroup();
initFromAttributes(context, attrs);
}
private void initViewGroup() {
// ViewGroup doesn't draw by default
setFlags(WILL_NOT_DRAW, DRAW_MASK);
mGroupFlags |= FLAG_CLIP_CHILDREN;
mGroupFlags |= FLAG_CLIP_TO_PADDING;
mGroupFlags |= FLAG_ANIMATION_DONE;
mGroupFlags |= FLAG_ANIMATION_CACHE;
mGroupFlags |= FLAG_ALWAYS_DRAWN_WITH_CACHE;
setDescendantFocusability(FOCUS_BEFORE_DESCENDANTS);
mChildren = new View[ARRAY_INITIAL_CAPACITY];
mChildrenCount = 0;
mPendingChildren = new ArrayList<View>();
}
private void initFromAttributes(Context context, AttributeSet attrs) {
TypedArray a = context.obtainStyledAttributes(attrs,
com.android.internal.R.styleable.ViewGroup);
final int N = a.getIndexCount();
for (int i = 0; i < N; i++) {
int attr = a.getIndex(i);
switch (attr) {
case com.android.internal.R.styleable.ViewGroup_clipChildren:
setClipChildren(a.getBoolean(attr, true));
break;
case com.android.internal.R.styleable.ViewGroup_clipToPadding:
setClipToPadding(a.getBoolean(attr, true));
break;
case com.android.internal.R.styleable.ViewGroup_addStatesFromChildren:
setAddStatesFromChildren(a.getBoolean(attr, false));
break;
case com.android.internal.R.styleable.ViewGroup_layoutAnimation:
int id = a.getResourceId(attr, -1);
if (id > 0) {
setLayoutAnimation(AnimationUtils.loadLayoutAnimation(mContext, id));
}
break;
case com.android.internal.R.styleable.ViewGroup_descendantFocusability:
setDescendantFocusability(DESCENDANT_FOCUSABILITY_FLAGS[a
.getInt(attr, 0)]);
break;
}
}
a.recycle();
}
/**
* Gets the descendant focusability of this view group. The descendant
* focusability defines the relationship between this view group and its
* descendants when looking for a view to take focus in
* {@link #requestFocus(int, android.graphics.Rect)}.
*
* @return one of {@link #FOCUS_BEFORE_DESCENDANTS}, {@link #FOCUS_AFTER_DESCENDANTS},
* {@link #FOCUS_BLOCK_DESCENDANTS}.
*/
public int getDescendantFocusability() {
return mGroupFlags & FLAG_MASK_FOCUSABILITY;
}
/**
* Set the descendant focusability of this view group. This defines the relationship
* between this view group and its descendants when looking for a view to
* take focus in {@link #requestFocus(int, android.graphics.Rect)}.
*
* @param focusability one of {@link #FOCUS_BEFORE_DESCENDANTS}, {@link #FOCUS_AFTER_DESCENDANTS},
* {@link #FOCUS_BLOCK_DESCENDANTS}.
*/
public void setDescendantFocusability(int focusability) {
switch (focusability) {
case FOCUS_BEFORE_DESCENDANTS:
case FOCUS_AFTER_DESCENDANTS:
case FOCUS_BLOCK_DESCENDANTS:
break;
default:
throw new IllegalArgumentException(
"must be one of FOCUS_BEFORE_DESCENDANTS, "
+ "FOCUS_AFTER_DESCENDANTS, FOCUS_BLOCK_DESCENDANTS");
}
mGroupFlags &= ~FLAG_MASK_FOCUSABILITY;
mGroupFlags |= (focusability & FLAG_MASK_FOCUSABILITY);
}
@Override
void handleFocusGainInternal(int direction, Rect previouslyFocusedRect) {
if (mFocused != null) {
mFocused.unFocus();
mFocused = null;
}
super.handleFocusGainInternal(direction, previouslyFocusedRect);
}
public void requestChildFocus(View child, View focused) {
if (DBG) {
System.out.println(this + " requestChildFocus()");
}
if (getDescendantFocusability() == FOCUS_BLOCK_DESCENDANTS) {
return;
}
// Unfocus us, if necessary
super.unFocus();
// We had a previous notion of who had focus. Clear it.
if (mFocused != child) {
if (mFocused != null) {
mFocused.unFocus();
}
mFocused = child;
}
if (mParent != null) {
mParent.requestChildFocus(this, focused);
}
}
public void focusableViewAvailable(View v) {
if (mParent != null
// shortcut: don't report a new focusable view if we block our
// descendants from
// getting focus
&& (getDescendantFocusability() != FOCUS_BLOCK_DESCENDANTS)
// shortcut: don't report a new focusable view if we already are
// focused
// (and we don't prefer our descendants)
//
// note: knowing that mFocused is non-null is not a good enough
// reason
// to break the traversal since in that case we'd actually have
// to find
// the focused view and make sure it wasn't
// FOCUS_AFTER_DESCENDANTS and
// an ancestor of v; this will get checked for at ViewRoot
&& !(isFocused() && getDescendantFocusability() != FOCUS_AFTER_DESCENDANTS)) {
mParent.focusableViewAvailable(v);
}
}
public boolean showContextMenuForChild(View originalView) {
return mParent != null && mParent.showContextMenuForChild(originalView);
}
public boolean requestChildRectangleOnScreen(View child, Rect rectangle,
boolean immediate) {
return false;
}
@Override
public boolean dispatchUnhandledMove(View focused, int direction) {
return mFocused != null
&& mFocused.dispatchUnhandledMove(focused, direction);
}
public void clearChildFocus(View child) {
if (DBG) {
System.out.println(this + " clearChildFocus()");
}
mFocused = null;
if (mParent != null) {
mParent.clearChildFocus(this);
}
}
@Override
public void clearFocus() {
super.clearFocus();
// clear any child focus if it exists
if (mFocused != null) {
mFocused.clearFocus();
}
}
@Override
void unFocus() {
if (DBG) {
System.out.println(this + " unFocus()");
}
super.unFocus();
if (mFocused != null) {
mFocused.unFocus();
}
mFocused = null;
}
/**
* Returns the focused child of this view, if any. The child may have focus
* or contain focus.
*
* @return the focused child or null.
*/
public View getFocusedChild() {
return mFocused;
}
/**
* Returns true if this view has or contains focus
*
* @return true if this view has or contains focus
*/
@Override
public boolean hasFocus() {
return (mPrivateFlags & FOCUSED) != 0 || mFocused != null;
}
@Override
public View findFocus() {
if (DBG) {
System.out.println("Find focus in " + this + ": flags="
+ isFocused() + ", child=" + mFocused);
}
if (isFocused()) {
return this;
}
if (mFocused != null) {
return mFocused.findFocus();
}
return null;
}
@Override
public boolean hasFocusable() {
if ((mViewFlags & VISIBILITY_MASK) != VISIBLE) {
return false;
}
if (isFocusable()) {
return true;
}
final int descendantFocusability = getDescendantFocusability();
if (descendantFocusability != FOCUS_BLOCK_DESCENDANTS) {
final int count = mChildrenCount;
final View[] children = mChildren;
for (int i = 0; i < count; i++) {
final View child = children[i];
if (child.hasFocusable()) {
return true;
}
}
}
return false;
}
@Override
public void addFocusables(ArrayList<View> views, int direction) {
addFocusables(views, direction, FOCUSABLES_TOUCH_MODE);
}
@Override
public void addFocusables(ArrayList<View> views, int direction,
int focusableMode) {
final int focusableCount = views.size();
final int descendantFocusability = getDescendantFocusability();
if (descendantFocusability != FOCUS_BLOCK_DESCENDANTS) {
final int count = mChildrenCount;
final View[] children = mChildren;
for (int i = 0; i < count; i++) {
final View child = children[i];
if ((child.mViewFlags & VISIBILITY_MASK) == VISIBLE) {
child.addFocusables(views, direction, focusableMode);
}
}
}
// we add ourselves (if focusable) in all cases except for when we are
// FOCUS_AFTER_DESCENDANTS and there are some descendants focusable. this is
// to avoid the focus search finding layouts when a more precise search
// among the focusable children would be more interesting.
if (descendantFocusability != FOCUS_AFTER_DESCENDANTS ||
// No focusable descendants
(focusableCount == views.size())) {
super.addFocusables(views, direction, focusableMode);
}
}
@Override
public void dispatchWindowFocusChanged(boolean hasFocus) {
super.dispatchWindowFocusChanged(hasFocus);
final int count = mChildrenCount;
final View[] children = mChildren;
for (int i = 0; i < count; i++) {
children[i].dispatchWindowFocusChanged(hasFocus);
}
}
@Override
public void dispatchWindowVisibilityChanged(int visibility) {
super.dispatchWindowVisibilityChanged(visibility);
final int count = mChildrenCount;
final View[] children = mChildren;
for (int i = 0; i < count; i++) {
children[i].dispatchWindowVisibilityChanged(visibility);
}
}
@Override
public void addTouchables(ArrayList<View> views) {
super.addTouchables(views);
final int count = mChildrenCount;
final View[] children = mChildren;
for (int i = 0; i < count; i++) {
final View child = children[i];
if ((child.mViewFlags & VISIBILITY_MASK) == VISIBLE) {
child.addTouchables(views);
}
}
}
@Override
public void dispatchDisplayHint(int hint) {
super.dispatchDisplayHint(hint);
final int count = mChildrenCount;
final View[] children = mChildren;
for (int i = 0; i < count; i++) {
children[i].dispatchDisplayHint(hint);
}
}
public void recomputeViewAttributes(View child) {
ViewParent parent = mParent;
if (parent != null)
parent.recomputeViewAttributes(this);
}
@Override
void dispatchCollectViewAttributes(int visibility) {
visibility |= mViewFlags & VISIBILITY_MASK;
super.dispatchCollectViewAttributes(visibility);
final int count = mChildrenCount;
final View[] children = mChildren;
for (int i = 0; i < count; i++) {
children[i].dispatchCollectViewAttributes(visibility);
}
}
public void bringChildToFront(View child) {
int index = indexOfChild(child);
if (index >= 0) {
removeFromArray(index);
addInArray(child, mChildrenCount);
child.mParent = this;
}
}
@Override
public boolean dispatchKeyEventPreIme(KeyEvent event) {
if ((mPrivateFlags & (FOCUSED | HAS_BOUNDS)) == (FOCUSED | HAS_BOUNDS)) {
return super.dispatchKeyEventPreIme(event);
} else if (mFocused != null
&& (mFocused.mPrivateFlags & HAS_BOUNDS) == HAS_BOUNDS) {
return mFocused.dispatchKeyEventPreIme(event);
}
return false;
}
@Override
public boolean dispatchKeyEvent(KeyEvent event) {
// MAYLOON: not sure it worked well
if ((mPrivateFlags & (FOCUSED | HAS_BOUNDS)) == (FOCUSED | HAS_BOUNDS)) {
return super.dispatchKeyEvent(event);
} else if (mFocused != null && (mFocused.mPrivateFlags & HAS_BOUNDS) == HAS_BOUNDS) {
return mFocused.dispatchKeyEvent(event);
}
return false;
}
public boolean dispatchTouchEvent(MotionEvent ev) {
long start = System.currentTimeMillis();
Log.d(TAG, "ViewGroup dispatchTouchEvent at time:" + start);
final int action = ev.getAction();
final float xf = ev.getX();
final float yf = ev.getY();
final float scrolledXFloat = xf + mScrollX;
final float scrolledYFloat = yf + mScrollY;
final Rect frame = mTempRect;
boolean disallowIntercept = (mGroupFlags & FLAG_DISALLOW_INTERCEPT) != 0;
if (action == MotionEvent.ACTION_DOWN) {
// If we're disallowing intercept or if we're allowing and we didn't
// intercept
if (disallowIntercept || !onInterceptTouchEvent(ev)) {
mMotionTarget = null;
// reset this event's action (just to protect ourselves)
ev.setAction(MotionEvent.ACTION_DOWN);
// We know we want to dispatch the event down, find a child
// who can handle it, start with the front-most child.
final int scrolledXInt = (int) scrolledXFloat;
final int scrolledYInt = (int) scrolledYFloat;
final View[] children = mChildren;
final int count = mChildrenCount;
for (int i = count - 1; i >= 0; i--) {
final View child = children[i];
if ((child.mViewFlags & VISIBILITY_MASK) == VISIBLE || child.getAnimation() != null) {
child.getHitRect(frame);
if (frame.contains(scrolledXInt, scrolledYInt)) {
// offset the event to the view's coordinate system
final float xc = scrolledXFloat - child.mLeft;
final float yc = scrolledYFloat - child.mTop;
ev.setLocation(xc, yc);
child.mPrivateFlags &= ~CANCEL_NEXT_UP_EVENT;
if (child.dispatchTouchEvent(ev)) {
// Event handled, we have a target now.
mMotionTarget = child;
return true;
}
// The event didn't get handled, try the next view.
// Don't reset the event's location, it's not
// necessary here.
}
}
}
}
}
boolean isUpOrCancel = (action == MotionEvent.ACTION_UP) ||
(action == MotionEvent.ACTION_CANCEL);
if (isUpOrCancel) {
// Note, we've already copied the previous state to our local
// variable, so this takes effect on the next event
mGroupFlags &= ~FLAG_DISALLOW_INTERCEPT;
}
// The event wasn't an ACTION_DOWN, dispatch it to our target if
// we have one.
final View target = mMotionTarget;
if (target == null) {
// We don't have a target, this means we're handling the
// event as a regular view.
ev.setLocation(xf, yf);
if ((mPrivateFlags & CANCEL_NEXT_UP_EVENT) != 0) {
ev.setAction(MotionEvent.ACTION_CANCEL);
mPrivateFlags &= ~CANCEL_NEXT_UP_EVENT;
}
return super.dispatchTouchEvent(ev);
}
// if have a target, see if we're allowed to and want to intercept its
// events
if (!disallowIntercept && onInterceptTouchEvent(ev)) {
final float xc = scrolledXFloat - (float) target.mLeft;
final float yc = scrolledYFloat - (float) target.mTop;
mPrivateFlags &= ~CANCEL_NEXT_UP_EVENT;
ev.setAction(MotionEvent.ACTION_CANCEL);
ev.setLocation(xc, yc);
if (!target.dispatchTouchEvent(ev)) {
// target didn't handle ACTION_CANCEL. not much we can do
// but they should have.
}
// clear the target
mMotionTarget = null;
// Don't dispatch this event to our own view, because we already
// saw it when intercepting; we just want to give the following
// event to the normal onTouchEvent().
return true;
}
if (isUpOrCancel) {
mMotionTarget = null;
}
// finally offset the event to the target's coordinate system and
// dispatch the event.
final float xc = scrolledXFloat - (float) target.mLeft;
final float yc = scrolledYFloat - (float) target.mTop;
ev.setLocation(xc, yc);
if ((target.mPrivateFlags & CANCEL_NEXT_UP_EVENT) != 0) {
ev.setAction(MotionEvent.ACTION_CANCEL);
target.mPrivateFlags &= ~CANCEL_NEXT_UP_EVENT;
mMotionTarget = null;
}
return target.dispatchTouchEvent(ev);
}
@Override
public boolean dispatchKeyShortcutEvent(KeyEvent event) {
if ((mPrivateFlags & (FOCUSED | HAS_BOUNDS)) == (FOCUSED | HAS_BOUNDS)) {
return super.dispatchKeyShortcutEvent(event);
} else if (mFocused != null
&& (mFocused.mPrivateFlags & HAS_BOUNDS) == HAS_BOUNDS) {
return mFocused.dispatchKeyShortcutEvent(event);
}
return false;
}
public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) {
if (disallowIntercept == ((mGroupFlags & FLAG_DISALLOW_INTERCEPT) != 0)) {
// We're already in this state, assume our ancestors are too
return;
}
if (disallowIntercept) {
mGroupFlags |= FLAG_DISALLOW_INTERCEPT;
} else {
mGroupFlags &= ~FLAG_DISALLOW_INTERCEPT;
}
// Pass it up to our parent
if (mParent != null) {
mParent.requestDisallowInterceptTouchEvent(disallowIntercept);
}
}
void dispatchAttachedToWindow(AttachInfo info, int visibility) {
super.dispatchAttachedToWindow(info, visibility);
visibility |= mViewFlags & VISIBILITY_MASK;
final int count = mChildrenCount;
final View[] children = mChildren;
for (int i = 0; i < count; i++) {
children[i].dispatchAttachedToWindow(info, visibility);
}
}
@Override
void dispatchDetachedFromWindow() {
// If we still have a motion target, we are still in the process of
// dispatching motion events to a child; we need to get rid of that
// child to avoid dispatching events to it after the window is torn
// down. To make sure we keep the child in a consistent state, we
// first send it an ACTION_CANCEL motion event.
final int count = mChildrenCount;
final View[] children = mChildren;
for (int i = 0; i < count; i++) {
children[i].dispatchDetachedFromWindow();
}
super.dispatchDetachedFromWindow();
}
@Override
public void setPadding(int left, int top, int right, int bottom) {
super.setPadding(left, top, right, bottom);
if ((mPaddingLeft | mPaddingTop | mPaddingRight | mPaddingRight) != 0) {
mGroupFlags |= FLAG_PADDING_NOT_NULL;
} else {
mGroupFlags &= ~FLAG_PADDING_NOT_NULL;
}
}
/**
* {@inheritDoc}
*/
@Override
protected void dispatchDraw(Canvas canvas) {
final int count = mChildrenCount;
final View[] children = mChildren;
int flags = mGroupFlags;
if ((flags & FLAG_RUN_ANIMATION) != 0 && canAnimate()) {
final boolean cache = (mGroupFlags & FLAG_ANIMATION_CACHE) == FLAG_ANIMATION_CACHE;
for (int i = 0; i < count; i++) {
final View child = children[i];
if ((child.mViewFlags & VISIBILITY_MASK) == VISIBLE) {
final LayoutParams params = child.getLayoutParams();
attachLayoutAnimationParameters(child, params, i, count);
bindLayoutAnimation(child);
// if (cache) {
// child.setDrawingCacheEnabled(true);
// child.buildDrawingCache(true);
// }
}
}
final LayoutAnimationController controller = mLayoutAnimationController;
if (controller.willOverlap()) {
mGroupFlags |= FLAG_OPTIMIZE_INVALIDATE;
}
controller.start();
mGroupFlags &= ~FLAG_RUN_ANIMATION;
mGroupFlags &= ~FLAG_ANIMATION_DONE;
if (cache) {
mGroupFlags |= FLAG_CHILDREN_DRAWN_WITH_CACHE;
}
if (mAnimationListener != null) {
mAnimationListener.onAnimationStart(controller.getAnimation());
}
}
int saveCount = 0;
final boolean clipToPadding = (flags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK;
if (clipToPadding) {
saveCount = canvas.save();
canvas.clipRect(mScrollX + mPaddingLeft, mScrollY + mPaddingTop,
mScrollX + mRight - mLeft - mPaddingRight,
mScrollY + mBottom - mTop - mPaddingBottom);
}
// We will draw our child's animation, let's reset the flag
mPrivateFlags &= ~DRAW_ANIMATION;
mGroupFlags &= ~FLAG_INVALIDATE_REQUIRED;
boolean more = false;
final long drawingTime = getDrawingTime();
if ((flags & FLAG_USE_CHILD_DRAWING_ORDER) == 0) {
for (int i = 0; i < count; i++) {
final View child = children[i];
if ((child.mViewFlags & VISIBILITY_MASK) == VISIBLE
|| child.getAnimation() != null) {
more |= drawChild(canvas, child, drawingTime);
}
}
} else {
for (int i = 0; i < count; i++) {
final View child = children[getChildDrawingOrder(count, i)];
if ((child.mViewFlags & VISIBILITY_MASK) == VISIBLE
|| child.getAnimation() != null) {
more |= drawChild(canvas, child, drawingTime);
}
}
}
//
// // Draw any disappearing views that have animations
// if (mDisappearingChildren != null) {
// final ArrayList<View> disappearingChildren = mDisappearingChildren;
// final int disappearingCount = disappearingChildren.size() - 1;
// // Go backwards -- we may delete as animations finish
// for (int i = disappearingCount; i >= 0; i--) {
// final View child = disappearingChildren.get(i);
// more |= drawChild(canvas, child, drawingTime);
// }
// }
//
if (clipToPadding) {
canvas.restoreToCount(saveCount);
}
// // mGroupFlags might have been updated by drawChild()
// flags = mGroupFlags;
//
// if ((flags & FLAG_INVALIDATE_REQUIRED) == FLAG_INVALIDATE_REQUIRED) {
// invalidate();
// }
/**/
}
/**
* Draw one child of this View Group. This method is responsible for getting
* the canvas in the right state. This includes clipping, translating so
* that the child's scrolled origin is at 0, 0, and applying any animation
* transformations.
*
* @param canvas The canvas on which to draw the child
* @param child Who to draw
* @param drawingTime The time at which draw is occuring
* @return True if an invalidate() was issued
*/
protected boolean drawChild(Canvas canvas, View child, long drawingTime) {
boolean more = false;
final int cl = child.mLeft;
final int ct = child.mTop;
final int cr = child.mRight;
final int cb = child.mBottom;
final int flags = mGroupFlags;
if ((flags & FLAG_CLEAR_TRANSFORMATION) == FLAG_CLEAR_TRANSFORMATION) {
if (mChildTransformation != null) {
mChildTransformation.clear();
}
mGroupFlags &= ~FLAG_CLEAR_TRANSFORMATION;
}
Transformation transformToApply = null;
final Animation a = child.getAnimation();
boolean concatMatrix = false;
if (a != null) {
if (mInvalidateRegion == null) {
mInvalidateRegion = new RectF();
}
final RectF region = mInvalidateRegion;
final boolean initialized = a.isInitialized();
if (!initialized) {
a.initialize(cr - cl, cb - ct, getWidth(), getHeight());
a.initializeInvalidateRegion(0, 0, cr - cl, cb - ct);
child.onAnimationStart();
}
if (mChildTransformation == null) {
mChildTransformation = new Transformation();
}
more = a.getTransformation(drawingTime, mChildTransformation);
transformToApply = mChildTransformation;
concatMatrix = a.willChangeTransformationMatrix();
if (more) {
if (!a.willChangeBounds()) {
if ((flags & (FLAG_OPTIMIZE_INVALIDATE | FLAG_ANIMATION_DONE)) ==
FLAG_OPTIMIZE_INVALIDATE) {
mGroupFlags |= FLAG_INVALIDATE_REQUIRED;
} else if ((flags & FLAG_INVALIDATE_REQUIRED) == 0) {
// The child need to draw an animation, potentially offscreen, so
// make sure we do not cancel invalidate requests
mPrivateFlags |= DRAW_ANIMATION;
// Workaround: In MayLoon, we have no real message loop, so we need to post
// a delayed invalidate to ensure current invalidate to execute, or else we will
// go into the infinite invalidate loop...
postInvalidateDelayed(17, cl, ct, cr, cb);
//invalidate(cl, ct, cr, cb);
}
} else {
a.getInvalidateRegion(0, 0, cr - cl, cb - ct, region, transformToApply);
// The child need to draw an animation, potentially offscreen, so
// make sure we do not cancel invalidate requests
mPrivateFlags |= DRAW_ANIMATION;
final int left = cl + (int) region.left;
final int top = ct + (int) region.top;
// Workaround: In MayLoon, we have no real message loop, so we need to post
// a delayed invalidate to ensure current invalidate to execute, or else we will
// go into the infinite invalidate loop...
postInvalidateDelayed(17, left, top, left + (int) region.width(), top + (int) region.height());
//invalidate(left, top, left + (int) region.width(), top + (int) region.height());
if (child instanceof android.widget.TextView) {
child.mScrollX = -(int) region.left;
child.mScrollY = -(int) region.top;
}
}
}
} else if ((flags & FLAG_SUPPORT_STATIC_TRANSFORMATIONS) ==
FLAG_SUPPORT_STATIC_TRANSFORMATIONS) {
if (mChildTransformation == null) {
mChildTransformation = new Transformation();
}
final boolean hasTransform = getChildStaticTransformation(child, mChildTransformation);
if (hasTransform) {
final int transformType = mChildTransformation.getTransformationType();
transformToApply = transformType != Transformation.TYPE_IDENTITY ?
mChildTransformation : null;
concatMatrix = (transformType & Transformation.TYPE_MATRIX) != 0;
}
}
// Sets the flag as early as possible to allow draw() implementations
// to call invalidate() successfully when doing animations
child.mPrivateFlags |= DRAWN;
// if (!concatMatrix && canvas.quickReject(cl, ct, cr, cb, Canvas.EdgeType.BW) &&
// (child.mPrivateFlags & DRAW_ANIMATION) == 0) {
// return more;
// }
child.computeScroll();
final int sx = child.mScrollX;
final int sy = child.mScrollY;
boolean scalingRequired = false;
/* Bitmap cache = null;
if ((flags & FLAG_CHILDREN_DRAWN_WITH_CACHE) == FLAG_CHILDREN_DRAWN_WITH_CACHE ||
(flags & FLAG_ALWAYS_DRAWN_WITH_CACHE) == FLAG_ALWAYS_DRAWN_WITH_CACHE) {
cache = child.getDrawingCache(true);
if (mAttachInfo != null) scalingRequired = mAttachInfo.mScalingRequired;
}*/
final boolean hasNoCache = true;
final int restoreTo = canvas.save();
if (hasNoCache) {
canvas.translate(cl - sx, ct - sy);
} else {
canvas.translate(cl, ct);
if (scalingRequired) {
// mAttachInfo cannot be null, otherwise scalingRequired == false
final float scale = 1.0f / mAttachInfo.mApplicationScale;
canvas.scale(scale, scale);
}
}
float alpha = 1.0f;
if (transformToApply != null) {
if (concatMatrix) {
int transX = 0;
int transY = 0;
if (hasNoCache) {
transX = -sx;
transY = -sy;
}
// Undo the scroll translation, apply the transformation matrix,
// then redo the scroll translate to get the correct result.
canvas.translate(-transX, -transY);
canvas.concat(transformToApply.getMatrix());
canvas.translate(transX, transY);
mGroupFlags |= FLAG_CLEAR_TRANSFORMATION;
}
alpha = transformToApply.getAlpha();
if (alpha < 1.0f) {
mGroupFlags |= FLAG_CLEAR_TRANSFORMATION;
}
if (alpha < 1.0f && hasNoCache) {
final int multipliedAlpha = (int) (255 * alpha);
if (!child.onSetAlpha(multipliedAlpha)) {
canvas.saveLayerAlpha(sx, sy, sx + cr - cl, sy + cb - ct, multipliedAlpha,
Canvas.HAS_ALPHA_LAYER_SAVE_FLAG | Canvas.CLIP_TO_LAYER_SAVE_FLAG);
} else {
child.mPrivateFlags |= ALPHA_SET;
}
}
} else if ((child.mPrivateFlags & ALPHA_SET) == ALPHA_SET) {
child.onSetAlpha(255);
}
if ((flags & FLAG_CLIP_CHILDREN) == FLAG_CLIP_CHILDREN) {
if (hasNoCache) {
canvas.clipRect(sx, sy, sx + (cr - cl), sy + (cb - ct));
} else {
// if (!scalingRequired) {
// canvas.clipRect(0, 0, cr - cl, cb - ct);
// } else {
// canvas.clipRect(0, 0, cache.getWidth(), cache.getHeight());
// }
}
}
if (hasNoCache) {
// Fast path for layouts with no backgrounds
if ((child.mPrivateFlags & SKIP_DRAW) == SKIP_DRAW) {
child.mPrivateFlags &= ~DIRTY_MASK;
child.dispatchDraw(canvas);
} else {
child.draw(canvas);
}
}
canvas.restoreToCount(restoreTo);
if (a != null && !more) {
child.onSetAlpha(255);
finishAnimatingView(child, a);
}
return more;
}
/**
* Returns the index of the child to draw for this iteration. Override this
* if you want to change the drawing order of children. By default, it
* returns i.
* <p>
* NOTE: In order for this method to be called, you must enable child ordering
* first by calling {@link #setChildrenDrawingOrderEnabled(boolean)}.
*
* @param i The current iteration.
* @return The index of the child to draw this iteration.
*
* @see #setChildrenDrawingOrderEnabled(boolean)
* @see #isChildrenDrawingOrderEnabled()
*/
protected int getChildDrawingOrder(int childCount, int i) {
return i;
}
/**
* By default, children are clipped to their bounds before drawing. This
* allows view groups to override this behavior for animations, etc.
*
* @param clipChildren true to clip children to their bounds,
* false otherwise
* @attr ref android.R.styleable#ViewGroup_clipChildren
*/
public void setClipChildren(boolean clipChildren) {
setBooleanFlag(FLAG_CLIP_CHILDREN, clipChildren);
}
/**
* By default, children are clipped to the padding of the ViewGroup. This
* allows view groups to override this behavior
*
* @param clipToPadding true to clip children to the padding of the
* group, false otherwise
* @attr ref android.R.styleable#ViewGroup_clipToPadding
*/
public void setClipToPadding(boolean clipToPadding) {
setBooleanFlag(FLAG_CLIP_TO_PADDING, clipToPadding);
}
@Override
public void dispatchSetSelected(boolean selected) {
final View[] children = mChildren;
final int count = mChildrenCount;
for (int i = 0; i < count; i++) {
children[i].setSelected(selected);
}
}
@Override
protected void dispatchSetPressed(boolean pressed) {
final View[] children = mChildren;
final int count = mChildrenCount;
for (int i = 0; i < count; i++) {
children[i].setPressed(pressed);
}
}
/**
* When this property is set to true, this ViewGroup supports static transformations on
* children; this causes
* {@link #getChildStaticTransformation(View, android.view.animation.Transformation)} to be
* invoked when a child is drawn.
*
* Any subclass overriding
* {@link #getChildStaticTransformation(View, android.view.animation.Transformation)} should
* set this property to true.
*
* @param enabled True to enable static transformations on children, false otherwise.
*
* @see #FLAG_SUPPORT_STATIC_TRANSFORMATIONS
*/
protected void setStaticTransformationsEnabled(boolean enabled) {
setBooleanFlag(FLAG_SUPPORT_STATIC_TRANSFORMATIONS, enabled);
}
/**
* Mayloon: Because we have HTML TAG, so we need to setVisibility for
* TextView recursively
*/
public void setVisibilityRec(String visible) {
final View[] children = mChildren;
int count = mChildrenCount;
for (int i = count - 1; i >= 0; i--) {
final View view = children[i];
if (view instanceof ViewGroup)
((ViewGroup) view).setVisibilityRec(visible);
/**
* @j2sNative
* var thisView = document.getElementById(view.mUIElementID);
* if (thisView != null) thisView.style.visibility = visible;
*/{}
}
}
/**
* {@inheritDoc}
*
* @see #setStaticTransformationsEnabled(boolean)
*/
protected boolean getChildStaticTransformation(View child, Transformation t) {
return false;
}
@Override
protected View findViewTraversal(int id) {
if (id == mID) {
return this;
}
final View[] where = mChildren;
final int len = mChildrenCount;
for (int i = 0; i < len; i++) {
View v = where[i];
if ((v.mPrivateFlags & IS_ROOT_NAMESPACE) == 0) {
v = v.findViewById(id);
if (v != null) {
return v;
}
}
}
return null;
}
@Override
protected View findViewWithTagTraversal(Object tag) {
if (tag != null && tag.equals(mTag)) {
return this;
}
final View[] where = mChildren;
final int len = mChildrenCount;
for (int i = 0; i < len; i++) {
View v = where[i];
if ((v.mPrivateFlags & IS_ROOT_NAMESPACE) == 0) {
v = v.findViewWithTag(tag);
if (v != null) {
return v;
}
}
}
return null;
}
/**
* Adds a child view. If no layout parameters are already set on the child, the
* default parameters for this ViewGroup are set on the child.
*
* @param child the child view to add
*
* @see #generateDefaultLayoutParams()
*/
public void addView(View child) {
addView(child, -1);
}
/**
* Adds a child view. If no layout parameters are already set on the child, the
* default parameters for this ViewGroup are set on the child.
*
* @param child the child view to add
* @param index the position at which to add the child
*
* @see #generateDefaultLayoutParams()
*/
public void addView(View child, int index) {
if (child == null)
throw new NullPointerException();
LayoutParams params = child.getLayoutParams();
if (params == null) {
params = generateDefaultLayoutParams();
if (params == null) {
throw new IllegalArgumentException("generateDefaultLayoutParams() cannot return null");
}
}
addView(child, index, params, true);
}
/**
* Adds a child view. If no layout parameters are already set on the child, the
* default parameters for this ViewGroup are set on the child.
*
* @param child the child view to add
*
* @see #generateDefaultLayoutParams()
*/
public void addView(View child, boolean modifyDom) {
addView(child, -1, modifyDom);
}
/**
* Adds a child view. If no layout parameters are already set on the child, the
* default parameters for this ViewGroup are set on the child.
*
* @param child the child view to add
* @param index the position at which to add the child
*
* @see #generateDefaultLayoutParams()
*/
public void addView(View child, int index, boolean modifyDom) {
LayoutParams params = child.getLayoutParams();
if (params == null) {
params = generateDefaultLayoutParams();
if (params == null) {
throw new IllegalArgumentException(
"generateDefaultLayoutParams() cannot return null");
}
}
addView(child, index, params, modifyDom);
}
/**
* Adds a child view with this ViewGroup's default layout parameters and the
* specified width and height.
*
* @param child the child view to add
*/
public void addView(View child, int width, int height, boolean modifyDom) {
final LayoutParams params = generateDefaultLayoutParams();
params.width = width;
params.height = height;
addView(child, -1, params, modifyDom);
}
/**
* Adds a child view with the specified layout parameters.
*
* @param child the child view to add
* @param params the layout parameters to set on the child
*/
public void addView(View child, LayoutParams params, boolean modifyDom) {
addView(child, -1, params, modifyDom);
}
/**
* Adds a child view with the specified layout parameters.
*
* @param child the child view to add
* @param index the position at which to add the child
* @param params the layout parameters to set on the child
*/
public void addView(View child, int index, LayoutParams params,
boolean modifyDom) {
// addViewInner() will call child.requestLayout() when setting the new
// LayoutParams
// therefore, we call requestLayout() on ourselves before, so that the
// child's request
// will be blocked at our level
requestLayout();
invalidate();
addViewInner(child, index, params, false, modifyDom);
}
public void updateViewLayout(View view, ViewGroup.LayoutParams params) {
if (!checkLayoutParams(params)) {
throw new IllegalArgumentException(
"Invalid LayoutParams supplied to ID: "
+ this.getUIElementID());
}
if (view.mParent != this) {
throw new IllegalArgumentException("Given view not a child of ID: "
+ this.getUIElementID());
}
view.setLayoutParams(params);
}
protected boolean checkLayoutParams(ViewGroup.LayoutParams p) {
return p != null;
}
/**
* Interface definition for a callback to be invoked when the hierarchy
* within this view changed. The hierarchy changes whenever a child is added
* to or removed from this view.
*/
public interface OnHierarchyChangeListener {
/**
* Called when a new child is added to a parent view.
*
* @param parent the view in which a child was added
* @param child the new child view added in the hierarchy
*/
void onChildViewAdded(View parent, View child);
/**
* Called when a child is removed from a parent view.
*
* @param parent the view from which the child was removed
* @param child the child removed from the hierarchy
*/
void onChildViewRemoved(View parent, View child);
}
/**
* Register a callback to be invoked when a child is added to or removed
* from this view.
*
* @param listener the callback to invoke on hierarchy change
*/
public void setOnHierarchyChangeListener(OnHierarchyChangeListener listener) {
mOnHierarchyChangeListener = listener;
}
protected boolean addViewInLayout(View child, int index, LayoutParams params) {
return addViewInLayout(child, index, params, true);
}
/**
* Adds a view during layout. This is useful if in your onLayout() method,
* you need to add more views (as does the list view for example).
*
* If index is negative, it means put it at the end of the list.
*
* @param child the view to add to the group
* @param index the index at which the child must be added
* @param params the layout parameters to associate with the child
* @return true if the child was added, false otherwise
*/
protected boolean addViewInLayout(View child, int index,
LayoutParams params, boolean modifyDom) {
return addViewInLayout(child, index, params, false, modifyDom);
}
/**
* Adds a view during layout. This is useful if in your onLayout() method,
* you need to add more views (as does the list view for example).
*
* If index is negative, it means put it at the end of the list.
*
* @param child the view to add to the group
* @param index the index at which the child must be added
* @param params the layout parameters to associate with the child
* @param preventRequestLayout if true, calling this method will not trigger a
* layout request on child
* @return true if the child was added, false otherwise
*/
protected boolean addViewInLayout(View child, int index,
LayoutParams params, boolean preventRequestLayout, boolean modifyDom) {
child.mParent = null;
addViewInner(child, index, params, preventRequestLayout, modifyDom);
child.mPrivateFlags = (child.mPrivateFlags & ~DIRTY_MASK) | DRAWN;
return true;
}
/**
* Prevents the specified child to be laid out during the next layout pass.
*
* @param child the child on which to perform the cleanup
*/
protected void cleanupLayoutState(View child) {
child.mPrivateFlags &= ~View.FORCE_LAYOUT;
}
private void addViewInner(View child, int index, LayoutParams params,
boolean preventRequestLayout, boolean modifyDom) {
if (child == null)
throw new NullPointerException();
if (child.getParent() != null) {
throw new IllegalStateException(
"The specified child already has a parent. "
+ "You must call removeView() on the child's parent first.");
}
if (!checkLayoutParams(params)) {
if (params == null)
throw new NullPointerException();
params = generateLayoutParams(params);
}
child.mLayoutParams = params;
if (index < 0) {
index = mChildrenCount;
}
if (modifyDom == true) {
addInArray(child, index);
}
child.assignParent(this, modifyDom);
if (child.hasFocus()) {
requestChildFocus(child, child.findFocus());
}
AttachInfo ai = mAttachInfo;
if (ai != null) {
boolean lastKeepOn = ai.mKeepScreenOn;
ai.mKeepScreenOn = false;
child.dispatchAttachedToWindow(mAttachInfo,
(mViewFlags & VISIBILITY_MASK));
if (ai.mKeepScreenOn) {
needGlobalAttributesUpdate(true);
}
ai.mKeepScreenOn = lastKeepOn;
}
if (mOnHierarchyChangeListener != null) {
mOnHierarchyChangeListener.onChildViewAdded(this, child);
}
if ((child.mViewFlags & DUPLICATE_PARENT_STATE) == DUPLICATE_PARENT_STATE) {
mGroupFlags |= FLAG_NOTIFY_CHILDREN_ON_DRAWABLE_STATE_CHANGE;
}
// System.out.println(this.getUIElementID()
// + " after addViewInner, child count: " + this.getChildCount());
}
private void addInArray(View child, int index) {
View[] children = mChildren;
final int count = mChildrenCount;
final int size = children.length;
if (index == count) {
if (size == count) {
mChildren = new View[size + ARRAY_CAPACITY_INCREMENT];
System.arraycopy(children, 0, mChildren, 0, size);
children = mChildren;
}
children[mChildrenCount++] = child;
} else if (index < count) {
if (size == count) {
mChildren = new View[size + ARRAY_CAPACITY_INCREMENT];
System.arraycopy(children, 0, mChildren, 0, index);
System.arraycopy(children, index, mChildren, index + 1, count
- index);
children = mChildren;
} else {
System.arraycopy(children, index, children, index + 1, count
- index);
}
children[index] = child;
mChildrenCount++;
} else {
throw new IndexOutOfBoundsException("index=" + index + " count="
+ count);
}
}
// This method also sets the child's mParent to null
private void removeFromArray(int index) {
final View[] children = mChildren;
final int count = mChildrenCount;
if (index < 0 || index >= count) {
throw new IndexOutOfBoundsException();
}
View view = children[index];
view.mParent = null;
/**
* @j2sNative
* var child = document.getElementById(view.mUIElementID);
* if (child != null) {
* child.parentNode.removeChild(child);
* } else {
* this.removeChildren(view);
* }
*/{}
if (index < count - 1) {
System.arraycopy(children, index + 1, children, index, mChildrenCount - 1 - index);
}
children[--mChildrenCount] = null;
}
// This method also sets the children's mParent to null
private void removeFromArray(int start, int count) {
final View[] children = mChildren;
final int childrenCount = mChildrenCount;
start = Math.max(0, start);
final int end = Math.min(childrenCount, start + count);
if (start == end) {
return;
}
if (end == childrenCount) {
for (int i = start; i < end; i++) {
/**
* @j2sNative
* var child = document.getElementById(children[i].mUIElementID);
* if (child != null) {
* child.parentNode.removeChild(child);
* } else {
* this.removeChildren(children[i]);
* }
*/{}
children[i].mParent = null;
children[i] = null;
}
} else {
for (int i = start; i < end; i++) {
/**
* @j2sNative
* var child = document.getElementById(children[i].mUIElementID);
* if (child != null) {
* child.parentNode.removeChild(child);
* } else {
* this.removeChildren(children[i]);
* }
*/{}
children[i].mParent = null;
}
// Since we're looping above, we might as well do the copy, but is
// arraycopy()
// faster than the extra 2 bounds checks we would do in the loop?
System.arraycopy(children, end, children, start, childrenCount
- end);
for (int i = childrenCount - (end - start); i < childrenCount; i++) {
children[i] = null;
}
}
mChildrenCount -= (end - start);
}
public void removeChildren(View parent) {
/**
* @j2sNative
* if (parent.mChildrenCount != null) {
* for (var i = 0; i < parent.mChildrenCount; i++) {
* var child = document.getElementById(parent.mChildren[i].mUIElementID);
* if (child != null) {
* child.parentNode.removeChild(child);
* } else {
* if (parent.mChildren[i].mChildrenCount != null) {
* this.removeChildren(parent.mChildren[i]);
* }
* }
* }
* }
*/{}
}
private void bindLayoutAnimation(View child) {
Animation a = mLayoutAnimationController.getAnimationForView(child);
child.setAnimation(a);
}
/**
* Subclasses should override this method to set layout animation
* parameters on the supplied child.
*
* @param child the child to associate with animation parameters
* @param params the child's layout parameters which hold the animation
* parameters
* @param index the index of the child in the view group
* @param count the number of children in the view group
*/
protected void attachLayoutAnimationParameters(View child,
LayoutParams params, int index, int count) {
LayoutAnimationController.AnimationParameters animationParams =
params.layoutAnimationParameters;
if (animationParams == null) {
animationParams = new LayoutAnimationController.AnimationParameters();
params.layoutAnimationParameters = animationParams;
}
animationParams.count = count;
animationParams.index = index;
}
public void removeView(View view) {
view.onWindowVisibilityChanged(View.GONE);
removeViewInternal(view);
requestLayout();
invalidate();
}
/**
* Removes a view during layout. This is useful if in your onLayout() method,
* you need to remove more views.
*
* @param view the view to remove from the group
*/
public void removeViewInLayout(View view) {
removeViewInternal(view);
}
/**
* Removes a range of views during layout. This is useful if in your onLayout() method,
* you need to remove more views.
*
* @param start the index of the first view to remove from the group
* @param count the number of views to remove from the group
*/
public void removeViewsInLayout(int start, int count) {
removeViewsInternal(start, count);
}
/**
* Removes the view at the specified position in the group.
*
* @param index the position in the group of the view to remove
*/
public void removeViewAt(int index) {
removeViewInternal(index, getChildAt(index));
requestLayout();
invalidate();
}
/**
* Removes the specified range of views from the group.
*
* @param start the first position in the group of the range of views to remove
* @param count the number of views to remove
*/
public void removeViews(int start, int count) {
removeViewsInternal(start, count);
requestLayout();
invalidate();
}
private void removeViewInternal(View view) {
final int index = indexOfChild(view);
if (index >= 0) {
removeViewInternal(index, view);
}
}
private void removeViewInternal(int index, View view) {
boolean clearChildFocus = false;
if (view == mFocused) {
view.clearFocusForRemoval();
clearChildFocus = true;
}
if (view.mAttachInfo != null) {
view.dispatchDetachedFromWindow();
}
if (mOnHierarchyChangeListener != null) {
mOnHierarchyChangeListener.onChildViewRemoved(this, view);
}
needGlobalAttributesUpdate(false);
removeFromArray(index);
if (clearChildFocus) {
clearChildFocus(view);
}
}
private void removeViewsInternal(int start, int count) {
final OnHierarchyChangeListener onHierarchyChangeListener = mOnHierarchyChangeListener;
final boolean notifyListener = onHierarchyChangeListener != null;
final View focused = mFocused;
final boolean detach = mAttachInfo != null;
View clearChildFocus = null;
final View[] children = mChildren;
final int end = start + count;
for (int i = start; i < end; i++) {
final View view = children[i];
if (view == focused) {
view.clearFocusForRemoval();
clearChildFocus = view;
}
if (detach) {
view.dispatchDetachedFromWindow();
}
needGlobalAttributesUpdate(false);
if (notifyListener) {
onHierarchyChangeListener.onChildViewRemoved(this, view);
}
}
removeFromArray(start, count);
if (clearChildFocus != null) {
clearChildFocus(clearChildFocus);
}
}
/**
* Call this method to remove all child views from the
* ViewGroup.
*/
public void removeAllViews() {
removeAllViewsInLayout();
requestLayout();
invalidate();
}
/**
* Called by a ViewGroup subclass to remove child views from itself, when it
* must first know its size on screen before it can calculate how many child
* views it will render. An example is a Gallery or a ListView, which may
* "have" 50 children, but actually only render the number of children that
* can currently fit inside the object on screen. Do not call this method
* unless you are extending ViewGroup and understand the view measuring and
* layout pipeline.
*/
public void removeAllViewsInLayout() {
final int count = mChildrenCount;
if (count <= 0) {
return;
}
final View[] children = mChildren;
mChildrenCount = 0;
final OnHierarchyChangeListener listener = mOnHierarchyChangeListener;
final boolean notify = listener != null;
final View focused = mFocused;
final boolean detach = mAttachInfo != null;
View clearChildFocus = null;
needGlobalAttributesUpdate(false);
for (int i = count - 1; i >= 0; i--) {
final View view = children[i];
if (view == focused) {
view.clearFocusForRemoval();
clearChildFocus = view;
}
if (detach) {
view.dispatchDetachedFromWindow();
}
if (notify) {
listener.onChildViewRemoved(this, view);
}
view.mParent = null;
children[i] = null;
// Mayloon: Because TextView is a HTML DOM, if we implment TextView in Canvas
// we don't need to do removeAllViewInLayout recursively
if (view instanceof ViewGroup) {
((ViewGroup) view).removeAllViewsInLayout();
}
/**
* @j2sNative
* var child = document.getElementById(view.mUIElementID);
* if (child != null) {
* child.parentNode.removeChild(child);
* }
*/{}
}
if (clearChildFocus != null) {
clearChildFocus(clearChildFocus);
}
}
/**
* Finishes the removal of a detached view. This method will dispatch the detached from
* window event and notify the hierarchy change listener.
*
* @param child the child to be definitely removed from the view hierarchy
* @param animate if true and the view has an animation, the view is placed in the
* disappearing views list, otherwise, it is detached from the window
*
* @see #attachViewToParent(View, int, android.view.ViewGroup.LayoutParams)
* @see #detachAllViewsFromParent()
* @see #detachViewFromParent(View)
* @see #detachViewFromParent(int)
*/
protected void removeDetachedView(View child, boolean animate) {
if (child == mFocused) {
child.clearFocus();
}
if (child.mAttachInfo != null) {
child.dispatchDetachedFromWindow();
}
if (mOnHierarchyChangeListener != null) {
mOnHierarchyChangeListener.onChildViewRemoved(this, child);
}
}
/**
* Attaches a view to this view group. Attaching a view assigns this group as the parent,
* sets the layout parameters and puts the view in the list of children so it can be retrieved
* by calling {@link #getChildAt(int)}.
*
* This method should be called only for view which were detached from their parent.
*
* @param child the child to attach
* @param index the index at which the child should be attached
* @param params the layout parameters of the child
*
* @see #removeDetachedView(View, boolean)
* @see #detachAllViewsFromParent()
* @see #detachViewFromParent(View)
* @see #detachViewFromParent(int)
*/
protected void attachViewToParent(View child, int index, LayoutParams params) {
child.mLayoutParams = params;
if (index < 0) {
index = mChildrenCount;
}
addInArray(child, index);
child.mParent = this;
child.mPrivateFlags = (child.mPrivateFlags & ~DIRTY_MASK & ~DRAWING_CACHE_VALID)
| DRAWN;
if (child.hasFocus()) {
requestChildFocus(child, child.findFocus());
}
}
/**
* Detaches a view from its parent. Detaching a view should be temporary and followed
* either by a call to {@link #attachViewToParent(View, int, android.view.ViewGroup.LayoutParams)}
* or a call to {@link #removeDetachedView(View, boolean)}. When a view is detached,
* its parent is null and cannot be retrieved by a call to {@link #getChildAt(int)}.
*
* @param child the child to detach
*
* @see #detachViewFromParent(int)
* @see #detachViewsFromParent(int, int)
* @see #detachAllViewsFromParent()
* @see #attachViewToParent(View, int, android.view.ViewGroup.LayoutParams)
* @see #removeDetachedView(View, boolean)
*/
protected void detachViewFromParent(View child) {
removeFromArray(indexOfChild(child));
}
/**
* Detaches a view from its parent. Detaching a view should be temporary and followed
* either by a call to {@link #attachViewToParent(View, int, android.view.ViewGroup.LayoutParams)}
* or a call to {@link #removeDetachedView(View, boolean)}. When a view is detached,
* its parent is null and cannot be retrieved by a call to {@link #getChildAt(int)}.
*
* @param index the index of the child to detach
*
* @see #detachViewFromParent(View)
* @see #detachAllViewsFromParent()
* @see #detachViewsFromParent(int, int)
* @see #attachViewToParent(View, int, android.view.ViewGroup.LayoutParams)
* @see #removeDetachedView(View, boolean)
*/
protected void detachViewFromParent(int index) {
removeFromArray(index);
}
/**
* Detaches a range of view from their parent. Detaching a view should be temporary and followed
* either by a call to {@link #attachViewToParent(View, int, android.view.ViewGroup.LayoutParams)}
* or a call to {@link #removeDetachedView(View, boolean)}. When a view is detached, its
* parent is null and cannot be retrieved by a call to {@link #getChildAt(int)}.
*
* @param start the first index of the childrend range to detach
* @param count the number of children to detach
*
* @see #detachViewFromParent(View)
* @see #detachViewFromParent(int)
* @see #detachAllViewsFromParent()
* @see #attachViewToParent(View, int, android.view.ViewGroup.LayoutParams)
* @see #removeDetachedView(View, boolean)
*/
protected void detachViewsFromParent(int start, int count) {
removeFromArray(start, count);
}
/**
* Detaches all views from the parent. Detaching a view should be temporary
* and followed either by a call to
* {@link #attachViewToParent(View, int, android.view.ViewGroup.LayoutParams)}
* or a call to {@link #removeDetachedView(View, boolean)}. When a view is
* detached, its parent is null and cannot be retrieved by a call to
* {@link #getChildAt(int)}.
*
* @see #detachViewFromParent(View)
* @see #detachViewFromParent(int)
* @see #detachViewsFromParent(int, int)
* @see #attachViewToParent(View, int, android.view.ViewGroup.LayoutParams)
* @see #removeDetachedView(View, boolean)
*/
protected void detachAllViewsFromParent() {
Log.d(TAG, "in detachAllViewsFromParent, can really detach?");
final int count = mChildrenCount;
if (count <= 0) {
return;
}
final View[] children = mChildren;
mChildrenCount = 0;
for (int i = count - 1; i >= 0; i--) {
/**
* @j2sNative
* var child = document.getElementById(children[i].mUIElementID);
* if (child != null) {
* child.parentNode.removeChild(child);
* } else {
* this.removeChildren(children[i]);
* }
*/{}
children[i].mParent = null;
children[i] = null;
}
}
/**
* Don't call or override this method. It is used for the implementation of
* the view hierarchy.
*/
public final void invalidateChild(View child, final Rect dirty) {
ViewParent parent = this;
final AttachInfo attachInfo = mAttachInfo;
if (attachInfo != null) {
final int[] location = attachInfo.mInvalidateChildLocation;
location[CHILD_LEFT_INDEX] = child.mLeft;
location[CHILD_TOP_INDEX] = child.mTop;
// If the child is drawing an animation, we want to copy this flag onto
// ourselves and the parent to make sure the invalidate request goes
// through
final boolean drawAnimation = (child.mPrivateFlags & DRAW_ANIMATION) == DRAW_ANIMATION;
// Check whether the child that requests the invalidate is fully opaque
final boolean isOpaque = child.isOpaque() && !drawAnimation
&& child.getAnimation() != null;
// Mark the child as dirty, using the appropriate flag
// Make sure we do not set both flags at the same time
final int opaqueFlag = isOpaque ? DIRTY_OPAQUE : DIRTY;
do {
View view = null;
if (parent instanceof View) {
view = (View) parent;
}
if (drawAnimation) {
if (view != null) {
view.mPrivateFlags |= DRAW_ANIMATION;
} else if (parent instanceof ViewRoot) {
((ViewRoot) parent).mIsAnimating = true;
}
}
// If the parent is dirty opaque or not dirty, mark it dirty with the opaque
// flag coming from the child that initiated the invalidate
if (view != null && (view.mPrivateFlags & DIRTY_MASK) != DIRTY) {
view.mPrivateFlags = (view.mPrivateFlags & ~DIRTY_MASK)
| opaqueFlag;
}
parent = parent.invalidateChildInParent(location, dirty);
} while (parent != null);
}
}
/**
* Don't call or override this method. It is used for the implementation of
* the view hierarchy.
*
* This implementation returns null if this ViewGroup does not have a parent,
* if this ViewGroup is already fully invalidated or if the dirty rectangle
* does not intersect with this ViewGroup's bounds.
*/
public ViewParent invalidateChildInParent(final int[] location,
final Rect dirty) {
if ((mPrivateFlags & DRAWN) == DRAWN) {
if ((mGroupFlags & (FLAG_OPTIMIZE_INVALIDATE | FLAG_ANIMATION_DONE)) != FLAG_OPTIMIZE_INVALIDATE) {
dirty.offset(location[CHILD_LEFT_INDEX] - mScrollX,
location[CHILD_TOP_INDEX] - mScrollY);
final int left = mLeft;
final int top = mTop;
if (dirty.intersect(0, 0, mRight - left, mBottom - top)
|| (mPrivateFlags & DRAW_ANIMATION) == DRAW_ANIMATION) {
mPrivateFlags &= ~DRAWING_CACHE_VALID;
location[CHILD_LEFT_INDEX] = left;
location[CHILD_TOP_INDEX] = top;
return mParent;
}
} else {
mPrivateFlags &= ~DRAWN & ~DRAWING_CACHE_VALID;
location[CHILD_LEFT_INDEX] = mLeft;
location[CHILD_TOP_INDEX] = mTop;
dirty.set(0, 0, mRight - location[CHILD_LEFT_INDEX], mBottom
- location[CHILD_TOP_INDEX]);
return mParent;
}
}
return null;
}
/**
* Offset a rectangle that is in a descendant's coordinate
* space into our coordinate space.
* @param descendant A descendant of this view
* @param rect A rectangle defined in descendant's coordinate space.
*/
public final void offsetDescendantRectToMyCoords(View descendant, Rect rect) {
offsetRectBetweenParentAndChild(descendant, rect, true, false);
}
/**
* Offset a rectangle that is in our coordinate space into an ancestor's
* coordinate space.
* @param descendant A descendant of this view
* @param rect A rectangle defined in descendant's coordinate space.
*/
public final void offsetRectIntoDescendantCoords(View descendant, Rect rect) {
offsetRectBetweenParentAndChild(descendant, rect, false, false);
}
/**
* Helper method that offsets a rect either from parent to descendant or
* descendant to parent.
*/
void offsetRectBetweenParentAndChild(View descendant, Rect rect,
boolean offsetFromChildToParent, boolean clipToBounds) {
// already in the same coord system :)
if (descendant == this) {
return;
}
ViewParent theParent = descendant.mParent;
// search and offset up to the parent
while ((theParent != null) && (theParent instanceof View)
&& (theParent != this)) {
if (offsetFromChildToParent) {
rect.offset(descendant.mLeft - descendant.mScrollX,
descendant.mTop - descendant.mScrollY);
if (clipToBounds) {
View p = (View) theParent;
rect.intersect(0, 0, p.mRight - p.mLeft, p.mBottom - p.mTop);
}
} else {
if (clipToBounds) {
View p = (View) theParent;
rect.intersect(0, 0, p.mRight - p.mLeft, p.mBottom - p.mTop);
}
rect.offset(descendant.mScrollX - descendant.mLeft,
descendant.mScrollY - descendant.mTop);
}
descendant = (View) theParent;
theParent = descendant.mParent;
}
// now that we are up to this view, need to offset one more time
// to get into our coordinate space
if (theParent == this) {
if (offsetFromChildToParent) {
rect.offset(descendant.mLeft - descendant.mScrollX,
descendant.mTop - descendant.mScrollY);
} else {
rect.offset(descendant.mScrollX - descendant.mLeft,
descendant.mScrollY - descendant.mTop);
}
} else {
throw new IllegalArgumentException(
"parameter must be a descendant of this view");
}
}
/**
* Offset the vertical location of all children of this view by the specified number of pixels.
*
* @param offset the number of pixels to offset
*
* @hide
*/
public void offsetChildrenTopAndBottom(int offset) {
final int count = mChildrenCount;
final View[] children = mChildren;
for (int i = 0; i < count; i++) {
final View v = children[i];
v.mTop += offset;
v.mBottom += offset;
}
}
public boolean getChildVisibleRect(View child, Rect r,
android.graphics.Point offset) {
int dx = child.mLeft - mScrollX;
int dy = child.mTop - mScrollY;
if (offset != null) {
offset.x += dx;
offset.y += dy;
}
r.offset(dx, dy);
return r.intersect(0, 0, mRight - mLeft, mBottom - mTop)
&& (mParent == null || mParent.getChildVisibleRect(this, r,
offset));
}
@Override
protected abstract void onLayout(boolean changed, int l, int t, int r, int b);
/**
* Indicates whether the view group has the ability to animate its children
* after the first layout.
*
* @return true if the children can be animated, false otherwise
*/
protected boolean canAnimate() {
return mLayoutAnimationController != null;
}
/**
* Schedules the layout animation to be played after the next layout pass
* of this view group. This can be used to restart the layout animation
* when the content of the view group changes or when the activity is
* paused and resumed.
*/
public void scheduleLayoutAnimation() {
mGroupFlags |= FLAG_RUN_ANIMATION;
}
/**
* If {link #addStatesFromChildren} is true, refreshes this group's
* drawable state (to include the states from its children).
*/
public void childDrawableStateChanged(View child) {
if ((mGroupFlags & FLAG_ADD_STATES_FROM_CHILDREN) != 0) {
refreshDrawableState();
}
}
/**
* Sets the layout animation controller used to animate the group's
* children after the first layout.
*
* @param controller the animation controller
*/
public void setLayoutAnimation(LayoutAnimationController controller) {
mLayoutAnimationController = controller;
if (mLayoutAnimationController != null) {
mGroupFlags |= FLAG_RUN_ANIMATION;
}
}
/**
* Indicates whether the ViewGroup is drawing its children in the order defined by
* {@link #getChildDrawingOrder(int, int)}.
*
* @return true if children drawing order is defined by {@link #getChildDrawingOrder(int, int)},
* false otherwise
*
* @see #setChildrenDrawingOrderEnabled(boolean)
* @see #getChildDrawingOrder(int, int)
*/
protected boolean isChildrenDrawingOrderEnabled() {
return (mGroupFlags & FLAG_USE_CHILD_DRAWING_ORDER) == FLAG_USE_CHILD_DRAWING_ORDER;
}
/**
* Tells the ViewGroup whether to draw its children in the order defined by the method
* {@link #getChildDrawingOrder(int, int)}.
*
* @param enabled true if the order of the children when drawing is determined by
* {@link #getChildDrawingOrder(int, int)}, false otherwise
*
* @see #isChildrenDrawingOrderEnabled()
* @see #getChildDrawingOrder(int, int)
*/
protected void setChildrenDrawingOrderEnabled(boolean enabled) {
setBooleanFlag(FLAG_USE_CHILD_DRAWING_ORDER, enabled);
}
private void setBooleanFlag(int flag, boolean value) {
if (value) {
mGroupFlags |= flag;
} else {
mGroupFlags &= ~flag;
}
}
/**
* Returns a new set of layout parameters based on the supplied attributes set.
*
* @param attrs the attributes to build the layout parameters from
*
* @return an instance of {@link android.view.ViewGroup.LayoutParams} or one
* of its descendants
*/
public LayoutParams generateLayoutParams(AttributeSet attrs) {
return new LayoutParams(getContext(), attrs);
}
/**
* Returns a safe set of layout parameters based on the supplied layout params.
* When a ViewGroup is passed a View whose layout params do not pass the test of
* {@link #checkLayoutParams(android.view.ViewGroup.LayoutParams)}, this method
* is invoked. This method should return a new set of layout params suitable for
* this ViewGroup, possibly by copying the appropriate attributes from the
* specified set of layout params.
*
* @param p The layout parameters to convert into a suitable set of layout parameters
* for this ViewGroup.
*
* @return an instance of {@link android.view.ViewGroup.LayoutParams} or one
* of its descendants
*/
protected LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) {
return p;
}
/**
* Returns a set of default layout parameters. These parameters are requested
* when the View passed to {@link #addView(View)} has no layout parameters
* already set. If null is returned, an exception is thrown from addView.
*
* @return a set of default layout parameters or null
*/
protected LayoutParams generateDefaultLayoutParams() {
return new LayoutParams(LayoutParams.WRAP_CONTENT,
LayoutParams.WRAP_CONTENT);
}
/**
* Returns the position in the group of the specified child view.
*
* @param child the view for which to get the position
* @return a positive integer representing the position of the view in the
* group, or -1 if the view does not exist in the group
*/
public int indexOfChild(View child) {
final int count = mChildrenCount;
final View[] children = mChildren;
for (int i = 0; i < count; i++) {
if (children[i] == child) {
return i;
}
}
return -1;
}
/**
* Returns the number of children in the group.
*
* @return a positive integer representing the number of children in
* the group
*/
public int getChildCount() {
return mChildrenCount;
}
/**
* Returns the view at the specified position in the group.
*
* @param index the position at which to get the view from
* @return the view at the specified position or null if the position does
* not exist within the group
*/
public View getChildAt(int index) {
try {
if (index < 0 || index >= mChildren.length)
throw new IndexOutOfBoundsException();
return mChildren[index];
} catch (IndexOutOfBoundsException ex) {
return null;
}
}
/**
* Ask all of the children of this view to measure themselves, taking into
* account both the MeasureSpec requirements for this view and its padding.
* We skip children that are in the GONE state The heavy lifting is done in
* getChildMeasureSpec.
*
* @param widthMeasureSpec The width requirements for this view
* @param heightMeasureSpec The height requirements for this view
*/
protected void measureChildren(int widthMeasureSpec, int heightMeasureSpec) {
final int size = mChildrenCount;
final View[] children = mChildren;
for (int i = 0; i < size; ++i) {
final View child = children[i];
if ((child.mViewFlags & VISIBILITY_MASK) != GONE) {
measureChild(child, widthMeasureSpec, heightMeasureSpec);
}
}
}
/**
* Ask one of the children of this view to measure itself, taking into
* account both the MeasureSpec requirements for this view and its padding.
* The heavy lifting is done in getChildMeasureSpec.
*
* @param child The child to measure
* @param parentWidthMeasureSpec The width requirements for this view
* @param parentHeightMeasureSpec The height requirements for this view
*/
protected void measureChild(View child, int parentWidthMeasureSpec,
int parentHeightMeasureSpec) {
final LayoutParams lp = child.getLayoutParams();
final int childWidthMeasureSpec = getChildMeasureSpec(
parentWidthMeasureSpec, mPaddingLeft + mPaddingRight, lp.width);
final int childHeightMeasureSpec = getChildMeasureSpec(
parentHeightMeasureSpec, mPaddingTop + mPaddingBottom,
lp.height);
child.measure(childWidthMeasureSpec, childHeightMeasureSpec);
}
/**
* Ask one of the children of this view to measure itself, taking into
* account both the MeasureSpec requirements for this view and its padding
* and margins. The child must have MarginLayoutParams The heavy lifting is
* done in getChildMeasureSpec.
*
* @param child The child to measure
* @param parentWidthMeasureSpec The width requirements for this view
* @param widthUsed Extra space that has been used up by the parent
* horizontally (possibly by other children of the parent)
* @param parentHeightMeasureSpec The height requirements for this view
* @param heightUsed Extra space that has been used up by the parent
* vertically (possibly by other children of the parent)
*/
protected void measureChildWithMargins(View child,
int parentWidthMeasureSpec, int widthUsed,
int parentHeightMeasureSpec, int heightUsed) {
final MarginLayoutParams lp = (MarginLayoutParams) child
.getLayoutParams();
final int childWidthMeasureSpec = getChildMeasureSpec(
parentWidthMeasureSpec, mPaddingLeft + mPaddingRight
+ lp.leftMargin + lp.rightMargin + widthUsed, lp.width);
final int childHeightMeasureSpec = getChildMeasureSpec(
parentHeightMeasureSpec, mPaddingTop + mPaddingBottom
+ lp.topMargin + lp.bottomMargin + heightUsed,
lp.height);
child.measure(childWidthMeasureSpec, childHeightMeasureSpec);
}
/**
* Does the hard part of measureChildren: figuring out the MeasureSpec to
* pass to a particular child. This method figures out the right MeasureSpec
* for one dimension (height or width) of one child view.
*
* The goal is to combine information from our MeasureSpec with the
* LayoutParams of the child to get the best possible results. For example,
* if the this view knows its size (because its MeasureSpec has a mode of
* EXACTLY), and the child has indicated in its LayoutParams that it wants
* to be the same size as the parent, the parent should ask the child to
* layout given an exact size.
*
* @param spec The requirements for this view
* @param padding The padding of this view for the current dimension and
* margins, if applicable
* @param childDimension How big the child wants to be in the current
* dimension
* @return a MeasureSpec integer for the child
*/
public static int getChildMeasureSpec(int spec, int padding,
int childDimension) {
int specMode = MeasureSpec.getMode(spec);
int specSize = MeasureSpec.getSize(spec);
/**
@j2sNative
if (isNaN(padding) == true) {
padding = 0;
}
*/
{
}
// System.out.println("specSize " + specSize + " specMode "
// + (specMode >> 30) + ", padding " + padding + ", cd "
// + childDimension);
int size = Math.max(0, specSize - padding);
int resultSize = 0;
int resultMode = 0;
switch (specMode) {
// Parent has imposed an exact size on us
case MeasureSpec.EXACTLY:
if (childDimension >= 0) {
resultSize = childDimension;
resultMode = MeasureSpec.EXACTLY;
} else if (childDimension == LayoutParams.MATCH_PARENT) {
// Child wants to be our size. So be it.
resultSize = size;
resultMode = MeasureSpec.EXACTLY;
} else if (childDimension == LayoutParams.WRAP_CONTENT) {
// Child wants to determine its own size. It can't be
// bigger than us.
resultSize = size;
resultMode = MeasureSpec.AT_MOST;
}
break;
// Parent has imposed a maximum size on us
case MeasureSpec.AT_MOST:
if (childDimension >= 0) {
// Child wants a specific size... so be it
resultSize = childDimension;
resultMode = MeasureSpec.EXACTLY;
} else if (childDimension == LayoutParams.MATCH_PARENT) {
// Child wants to be our size, but our size is not fixed.
// Constrain child to not be bigger than us.
resultSize = size;
resultMode = MeasureSpec.AT_MOST;
} else if (childDimension == LayoutParams.WRAP_CONTENT) {
// Child wants to determine its own size. It can't be
// bigger than us.
resultSize = size;
resultMode = MeasureSpec.AT_MOST;
}
break;
// Parent asked to see how big we want to be
case MeasureSpec.UNSPECIFIED:
if (childDimension >= 0) {
// Child wants a specific size... let him have it
resultSize = childDimension;
resultMode = MeasureSpec.EXACTLY;
} else if (childDimension == LayoutParams.MATCH_PARENT) {
// Child wants to be our size... find out how big it should
// be
resultSize = 0;
resultMode = MeasureSpec.UNSPECIFIED;
} else if (childDimension == LayoutParams.WRAP_CONTENT) {
// Child wants to determine its own size.... find out how
// big it should be
resultSize = 0;
resultMode = MeasureSpec.UNSPECIFIED;
}
break;
}
return MeasureSpec.makeMeasureSpec(resultSize, resultMode);
}
/**
* Removes any pending animations for views that have been removed. Call
* this if you don't want animations for exiting views to stack up.
*/
public void clearDisappearingChildren() {
if (mDisappearingChildren != null) {
mDisappearingChildren.clear();
}
}
/**
* Cleanup a view when its animation is done. This may mean removing it from
* the list of disappearing views.
*
* @param view The view whose animation has finished
* @param animation The animation, cannot be null
*/
private void finishAnimatingView(final View view, Animation animation) {
final ArrayList<View> disappearingChildren = mDisappearingChildren;
if (disappearingChildren != null) {
if (disappearingChildren.contains(view)) {
disappearingChildren.remove(view);
if (view.mAttachInfo != null) {
view.dispatchDetachedFromWindow();
}
view.clearAnimation();
mGroupFlags |= FLAG_INVALIDATE_REQUIRED;
}
}
if (animation != null && !animation.getFillAfter()) {
view.clearAnimation();
}
if ((view.mPrivateFlags & ANIMATION_STARTED) == ANIMATION_STARTED) {
view.onAnimationEnd();
// Should be performed by onAnimationEnd() but this avoid an infinite loop,
// so we'd rather be safe than sorry
view.mPrivateFlags &= ~ANIMATION_STARTED;
// Draw one more frame after the animation is done
mGroupFlags |= FLAG_INVALIDATE_REQUIRED;
}
}
public void requestTransparentRegion(View child) {
if (child != null) {
child.mPrivateFlags |= View.REQUEST_TRANSPARENT_REGIONS;
if (mParent != null) {
mParent.requestTransparentRegion(this);
}
}
}
@Override
protected boolean fitSystemWindows(Rect insets) {
boolean done = super.fitSystemWindows(insets);
if (!done) {
final int count = mChildrenCount;
final View[] children = mChildren;
for (int i = 0; i < count; i++) {
done = children[i].fitSystemWindows(insets);
if (done) {
break;
}
}
}
return done;
}
@Override
protected int[] onCreateDrawableState(int extraSpace) {
if ((mGroupFlags & FLAG_ADD_STATES_FROM_CHILDREN) == 0) {
return super.onCreateDrawableState(extraSpace);
}
int need = 0;
int n = getChildCount();
for (int i = 0; i < n; i++) {
int[] childState = getChildAt(i).getDrawableState();
if (childState != null) {
need += childState.length;
}
}
int[] state = super.onCreateDrawableState(extraSpace + need);
for (int i = 0; i < n; i++) {
int[] childState = getChildAt(i).getDrawableState();
if (childState != null) {
state = mergeDrawableStates(state, childState);
}
}
return state;
}
/**
* Sets whether this ViewGroup's drawable states also include
* its children's drawable states. This is used, for example, to
* make a group appear to be focused when its child EditText or button
* is focused.
*/
public void setAddStatesFromChildren(boolean addsStates) {
if (addsStates) {
mGroupFlags |= FLAG_ADD_STATES_FROM_CHILDREN;
} else {
mGroupFlags &= ~FLAG_ADD_STATES_FROM_CHILDREN;
}
}
/**
* Returns whether this ViewGroup's drawable states also include
* its children's drawable states. This is used, for example, to
* make a group appear to be focused when its child EditText or button
* is focused.
*/
public boolean addStatesFromChildren() {
return (mGroupFlags & FLAG_ADD_STATES_FROM_CHILDREN) != 0;
}
/**
* LayoutParams are used by views to tell their parents how they want to be
* laid out. See
* {@link com.intel.jsdroid.sample.R.styleable#ViewGroup_Layout ViewGroup Layout Attributes}
* for a list of all child view attributes that this class supports.
*
* <p>
* The base LayoutParams class just describes how big the view wants to be
* for both width and height. For each dimension, it can specify one of:
* <ul>
* <li>FILL_PARENT (renamed MATCH_PARENT in API Level 8 and higher), which
* means that the view wants to be as big as its parent (minus padding)
* <li> WRAP_CONTENT, which means that the view wants to be just big enough
* to enclose its content (plus padding)
* <li> an exact number
* </ul>
* There are subclasses of LayoutParams for different subclasses of
* ViewGroup. For example, AbsoluteLayout has its own subclass of
* LayoutParams which adds an X and Y value.
*
* @attr ref android.R.styleable#ViewGroup_Layout_layout_height
* @attr ref android.R.styleable#ViewGroup_Layout_layout_width
*/
public static class LayoutParams {
/**
* Special value for the height or width requested by a View.
* FILL_PARENT means that the view wants to be as big as its parent,
* minus the parent's padding, if any. This value is deprecated
* starting in API Level 8 and replaced by {@link #MATCH_PARENT}.
*/
@SuppressWarnings({"UnusedDeclaration"})
@Deprecated
public static final int FILL_PARENT = -1;
/**
* Special value for the height or width requested by a View.
* MATCH_PARENT means that the view wants to be as big as its parent,
* minus the parent's padding, if any. Introduced in API Level 8.
*/
public static final int MATCH_PARENT = -1;
/**
* Special value for the height or width requested by a View.
* WRAP_CONTENT means that the view wants to be just large enough to fit
* its own internal content, taking its own padding into account.
*/
public static final int WRAP_CONTENT = -2;
/**
* Information about how wide the view wants to be. Can be one of the
* constants FILL_PARENT (replaced by MATCH_PARENT ,
* in API Level 8) or WRAP_CONTENT. or an exact size.
*/
public int width;
/**
* Information about how tall the view wants to be. Can be one of the
* constants FILL_PARENT (replaced by MATCH_PARENT ,
* in API Level 8) or WRAP_CONTENT. or an exact size.
*/
public int height;
/**
* Used to animate layouts.
*/
public LayoutAnimationController.AnimationParameters layoutAnimationParameters;
/**
* Creates a new set of layout parameters. The values are extracted from
* the supplied attributes set and context. The XML attributes mapped
* to this set of layout parameters are:
*
* <ul>
* <li><code>layout_width</code>: the width, either an exact value,
* {@link #WRAP_CONTENT}, or {@link #FILL_PARENT} (replaced by
* {@link #MATCH_PARENT} in API Level 8)</li>
* <li><code>layout_height</code>: the height, either an exact value,
* {@link #WRAP_CONTENT}, or {@link #FILL_PARENT} (replaced by
* {@link #MATCH_PARENT} in API Level 8)</li>
* </ul>
*
* @param c the application environment
* @param attrs the set of attributes from which to extract the layout
* parameters' values
*/
public LayoutParams(Context c, AttributeSet attrs) {
TypedArray a = c.obtainStyledAttributes(attrs,
com.android.internal.R.styleable.ViewGroup_Layout);
// System.out.println("LayoutParams index count " +
// a.getIndexCount());
setBaseAttributes(
a,
com.android.internal.R.styleable.ViewGroup_Layout_layout_width,
com.android.internal.R.styleable.ViewGroup_Layout_layout_height);
a.recycle();
}
/**
* Creates a new set of layout parameters with the specified width
* and height.
*
* @param width the width, either {@link #WRAP_CONTENT},
* {@link #FILL_PARENT} (replaced by {@link #MATCH_PARENT} in
* API Level 8), or a fixed size in pixels
* @param height the height, either {@link #WRAP_CONTENT},
* {@link #FILL_PARENT} (replaced by {@link #MATCH_PARENT} in
* API Level 8), or a fixed size in pixels
*/
public LayoutParams(int width, int height) {
this.width = width;
this.height = height;
}
/**
* Copy constructor. Clones the width and height values of the source.
*
* @param source The layout params to copy from.
*/
public LayoutParams(LayoutParams source) {
if (source == null) {
throw new NullPointerException("ViewGroup.LayoutParams->source is null");
}
this.width = source.width;
this.height = source.height;
}
/**
* Used internally by MarginLayoutParams.
* @hide
*/
LayoutParams() {
}
/**
* Extracts the layout parameters from the supplied attributes.
*
* @param a the style attributes to extract the parameters from
* @param widthAttr the identifier of the width attribute
* @param heightAttr the identifier of the height attribute
*/
protected void setBaseAttributes(TypedArray a, int widthAttr,
int heightAttr) {
if (a == null) {
throw new NullPointerException("ViewGroup.setBaseAttributes parame a is null");
}
width = a.getLayoutDimension(widthAttr, "layout_width");
height = a.getLayoutDimension(heightAttr, "layout_height");
}
/**
* Returns a String representation of this set of layout parameters.
*
* @param output the String to prepend to the internal representation
* @return a String with the following format: output +
* "ViewGroup.LayoutParams={ width=WIDTH, height=HEIGHT }"
*
* @hide
*/
public String debug(String output) {
return output + "ViewGroup.LayoutParams={ width="
+ sizeToString(width) + ", height=" + sizeToString(height)
+ " }";
}
/**
* Converts the specified size to a readable String.
*
* @param size the size to convert
* @return a String instance representing the supplied size
*
* @hide
*/
protected static String sizeToString(int size) {
if (size == WRAP_CONTENT) {
return "wrap-content";
}
if (size == MATCH_PARENT) {
return "match-parent";
}
return String.valueOf(size);
}
}
/**
* Per-child layout information for layouts that support margins.
* See
* {@link com.intel.jsdroid.sample.R.styleable#ViewGroup_MarginLayout ViewGroup Margin Layout Attributes}
* for a list of all child view attributes that this class supports.
*/
public static class MarginLayoutParams extends ViewGroup.LayoutParams {
/**
* The left margin in pixels of the child.
*/
public int leftMargin;
/**
* The top margin in pixels of the child.
*/
public int topMargin;
/**
* The right margin in pixels of the child.
*/
public int rightMargin;
/**
* The bottom margin in pixels of the child.
*/
public int bottomMargin;
/**
* Creates a new set of layout parameters. The values are extracted from
* the supplied attributes set and context.
*
* @param c the application environment
* @param attrs the set of attributes from which to extract the layout
* parameters' values
*/
public MarginLayoutParams(Context c, AttributeSet attrs) {
super();
if (c == null) {
throw new NullPointerException("ViewGroup.MarginLayoutParams c is null");
}
TypedArray a = c.obtainStyledAttributes(attrs,
com.android.internal.R.styleable.ViewGroup_MarginLayout);
setBaseAttributes(
a,
com.android.internal.R.styleable.ViewGroup_MarginLayout_layout_width,
com.android.internal.R.styleable.ViewGroup_MarginLayout_layout_height);
int margin = a
.getDimensionPixelSize(
com.android.internal.R.styleable.ViewGroup_MarginLayout_layout_margin,
-1);
if (margin >= 0) {
leftMargin = margin;
topMargin = margin;
rightMargin = margin;
bottomMargin = margin;
} else {
leftMargin = a
.getDimensionPixelSize(
com.android.internal.R.styleable.ViewGroup_MarginLayout_layout_marginLeft,
0);
topMargin = a
.getDimensionPixelSize(
com.android.internal.R.styleable.ViewGroup_MarginLayout_layout_marginTop,
0);
rightMargin = a
.getDimensionPixelSize(
com.android.internal.R.styleable.ViewGroup_MarginLayout_layout_marginRight,
0);
bottomMargin = a
.getDimensionPixelSize(
com.android.internal.R.styleable.ViewGroup_MarginLayout_layout_marginBottom,
0);
}
a.recycle();
}
public MarginLayoutParams(int width, int height) {
super(width, height);
}
/**
* Copy constructor. Clones the width, height and margin values of the source.
*
* @param source The layout params to copy from.
*/
public MarginLayoutParams(MarginLayoutParams source) {
if (source == null) {
throw new NullPointerException("ViewGroup.MarginLayoutParams->source is null");
}
this.width = source.width;
this.height = source.height;
this.leftMargin = source.leftMargin;
this.topMargin = source.topMargin;
this.rightMargin = source.rightMargin;
this.bottomMargin = source.bottomMargin;
}
public MarginLayoutParams(LayoutParams source) {
super(source);
}
/**
* Sets the margins, in pixels.
*
* @param left the left margin size
* @param top the top margin size
* @param right the right margin size
* @param bottom the bottom margin size
*
* @attr ref android.R.styleable#ViewGroup_MarginLayout_layout_marginLeft
* @attr ref android.R.styleable#ViewGroup_MarginLayout_layout_marginTop
* @attr ref android.R.styleable#ViewGroup_MarginLayout_layout_marginRight
* @attr ref android.R.styleable#ViewGroup_MarginLayout_layout_marginBottom
*/
public void setMargins(int left, int top, int right, int bottom) {
leftMargin = left;
topMargin = top;
rightMargin = right;
bottomMargin = bottom;
}
}
public boolean verifyDrawable(Drawable who) {
// TODO Auto-generated method stub
return false;
}
@Override
protected void drawableStateChanged() {
super.drawableStateChanged();
if ((mGroupFlags & FLAG_NOTIFY_CHILDREN_ON_DRAWABLE_STATE_CHANGE) != 0) {
if ((mGroupFlags & FLAG_ADD_STATES_FROM_CHILDREN) != 0) {
throw new IllegalStateException("addStateFromChildren cannot be enabled if a"
+ " child has duplicateParentState set to true");
}
final View[] children = mChildren;
final int count = mChildrenCount;
for (int i = 0; i < count; i++) {
final View child = children[i];
if ((child.mViewFlags & DUPLICATE_PARENT_STATE) != 0) {
child.refreshDrawableState();
}
}
}
}
@Override
protected View findElementViewTraversal(int viewElementId) {
if (viewElementId == getUIElementID()) {
return this;
}
final View[] where = mChildren;
final int len = mChildrenCount;
for (int i = 0; i < len; i++) {
View v = where[i];
v = v.findViewByElementId(viewElementId);
if (v != null) {
return v;
}
}
return null;
}
public boolean onInterceptTouchEvent(MotionEvent event) {
return false;
}
@Override
public void addView(View child, LayoutParams params) {
addView(child, -1, params);
}
/**
* Adds a child view with the specified layout parameters.
*
* @param child the child view to add
* @param index the position at which to add the child
* @param params the layout parameters to set on the child
*/
public void addView(View child, int index, LayoutParams params) {
// addViewInner() will call child.requestLayout() when setting the new LayoutParams
// therefore, we call requestLayout() on ourselves before, so that the child's request
// will be blocked at our level
requestLayout();
invalidate();
addViewInner(child, index, params, false);
}
/**
* {@inheritDoc}
*
* Looks for a view to give focus to respecting the setting specified by
* {@link #getDescendantFocusability()}.
*
* Uses {@link #onRequestFocusInDescendants(int, android.graphics.Rect)} to
* find focus within the children of this group when appropriate.
*
* @see #FOCUS_BEFORE_DESCENDANTS
* @see #FOCUS_AFTER_DESCENDANTS
* @see #FOCUS_BLOCK_DESCENDANTS
* @see #onRequestFocusInDescendants(int, android.graphics.Rect)
*/
@Override
public boolean requestFocus(int direction, Rect previouslyFocusedRect) {
Log.i(TAG, " ViewGroup.requestFocus direction= " + direction);
int descendantFocusability = getDescendantFocusability();
switch (descendantFocusability) {
case FOCUS_BLOCK_DESCENDANTS:
return super.requestFocus(direction, previouslyFocusedRect);
case FOCUS_BEFORE_DESCENDANTS: {
final boolean took = super.requestFocus(direction, previouslyFocusedRect);
return took ? took : onRequestFocusInDescendants(direction, previouslyFocusedRect);
}
case FOCUS_AFTER_DESCENDANTS: {
final boolean took = onRequestFocusInDescendants(direction, previouslyFocusedRect);
return took ? took : super.requestFocus(direction, previouslyFocusedRect);
}
default:
throw new IllegalStateException("descendant focusability must be "
+ "one of FOCUS_BEFORE_DESCENDANTS, FOCUS_AFTER_DESCENDANTS, FOCUS_BLOCK_DESCENDANTS "
+ "but is " + descendantFocusability);
}
}
private void addViewInner(View child, int index, LayoutParams params,
boolean preventRequestLayout) {
if (child.getParent() != null) {
throw new IllegalStateException("The specified child already has a parent. " +
"You must call removeView() on the child's parent first.");
}
if (!checkLayoutParams(params)) {
if (params == null)
throw new NullPointerException();
params = generateLayoutParams(params);
}
if (preventRequestLayout) {
child.mLayoutParams = params;
} else {
child.setLayoutParams(params);
}
if (index < 0) {
index = mChildrenCount;
}
addInArray(child, index);
// tell our children
if (preventRequestLayout) {
child.assignParent(this, true);
} else {
child.mParent = this;
}
if (child.hasFocus()) {
requestChildFocus(child, child.findFocus());
}
AttachInfo ai = mAttachInfo;
if (ai != null) {
boolean lastKeepOn = ai.mKeepScreenOn;
ai.mKeepScreenOn = false;
child.dispatchAttachedToWindow(mAttachInfo, (mViewFlags&VISIBILITY_MASK));
if (ai.mKeepScreenOn) {
needGlobalAttributesUpdate(true);
}
ai.mKeepScreenOn = lastKeepOn;
}
if (mOnHierarchyChangeListener != null) {
mOnHierarchyChangeListener.onChildViewAdded(this, child);
}
if ((child.mViewFlags & DUPLICATE_PARENT_STATE) == DUPLICATE_PARENT_STATE) {
mGroupFlags |= FLAG_NOTIFY_CHILDREN_ON_DRAWABLE_STATE_CHANGE;
}
}
@Override
public View focusSearch(View v, int direction) {
// if (isRootNamespace()) {
// // root namespace means we should consider ourselves the top of the
// // tree for focus searching; otherwise we could be focus searching
// // into other tabs. see LocalActivityManager and TabHost for more info
// return FocusFinder.getInstance().findNextFocus(this, focused, direction);
// } else if (mParent != null) {
// return mParent.focusSearch(focused, direction);
// }
return null;
}
protected boolean onRequestFocusInDescendants(int direction,
Rect previouslyFocusedRect) {
int index;
int increment;
int end;
int count = mChildrenCount;
if ((direction & FOCUS_FORWARD) != 0) {
index = 0;
increment = 1;
end = count;
} else {
index = count - 1;
increment = -1;
end = -1;
}
final View[] children = mChildren;
for (int i = index; i != end; i += increment) {
View child = children[i];
if ((child.mViewFlags & VISIBILITY_MASK) == VISIBLE) {
if (child.requestFocus(direction, previouslyFocusedRect)) {
return true;
}
}
}
return false;
}
public void addPendingChild(View pendingChild){
Log.d(TAG, "Adding View " + pendingChild.getUIElementID() + " as pending child for View " + this.getUIElementID());
mPendingChildren.add(pendingChild);
}
public void fixPendingChildren(){
for(View child: mPendingChildren){
child.fixParent(this, true);
}
mPendingChildren.clear();
}
/**
* @j2sNative
* console.log("Missing method: setLayoutAnimationListener");
*/
@MayloonStubAnnotation()
public void setLayoutAnimationListener(
Animation.AnimationListener animationListener) {
System.out.println("Stub" + " Function : setLayoutAnimationListener");
return;
}
/**
* @j2sNative
* console.log("Missing method: setAnimationCacheEnabled");
*/
@MayloonStubAnnotation()
public void setAnimationCacheEnabled(boolean enabled) {
System.out.println("Stub" + " Function : setAnimationCacheEnabled");
return;
}
/**
* @j2sNative
* console.log("Missing method: setChildrenDrawnWithCacheEnabled");
*/
@MayloonStubAnnotation()
protected void setChildrenDrawnWithCacheEnabled(boolean enabled) {
System.out.println("Stub" + " Function : setChildrenDrawnWithCacheEnabled");
return;
}
/**
* @j2sNative
* console.log("Missing method: getPersistentDrawingCache");
*/
@MayloonStubAnnotation()
public int getPersistentDrawingCache() {
System.out.println("Stub" + " Function : getPersistentDrawingCache");
return 0;
}
/**
* @j2sNative
* console.log("Missing method: debug");
*/
@MayloonStubAnnotation()
protected void debug(int depth) {
System.out.println("Stub" + " Function : debug");
return;
}
/**
* @j2sNative
* console.log("Missing method: setPersistentDrawingCache");
*/
@MayloonStubAnnotation()
public void setPersistentDrawingCache(int drawingCacheToKeep) {
System.out.println("Stub" + " Function : setPersistentDrawingCache");
return;
}
/**
* @j2sNative
* console.log("Missing method: startLayoutAnimation");
*/
@MayloonStubAnnotation()
public void startLayoutAnimation() {
System.out.println("Stub" + " Function : startLayoutAnimation");
return;
}
/**
* @j2sNative
* console.log("Missing method: isChildrenDrawnWithCacheEnabled");
*/
@MayloonStubAnnotation()
protected boolean isChildrenDrawnWithCacheEnabled() {
System.out.println("Stub" + " Function : isChildrenDrawnWithCacheEnabled");
return true;
}
/**
* @j2sNative
* console.log("Missing method: isAnimationCacheEnabled");
*/
@MayloonStubAnnotation()
public boolean isAnimationCacheEnabled() {
System.out.println("Stub" + " Function : isAnimationCacheEnabled");
return true;
}
/**
* @j2sNative
* console.log("Missing method: isAlwaysDrawnWithCacheEnabled");
*/
@MayloonStubAnnotation()
public boolean isAlwaysDrawnWithCacheEnabled() {
System.out.println("Stub" + " Function : isAlwaysDrawnWithCacheEnabled");
return true;
}
/**
* @j2sNative
* console.log("Missing method: setChildrenDrawingCacheEnabled");
*/
@MayloonStubAnnotation()
protected void setChildrenDrawingCacheEnabled(boolean enabled) {
System.out.println("Stub" + " Function : setChildrenDrawingCacheEnabled");
return;
}
/**
* @j2sNative
* console.log("Missing method: setAlwaysDrawnWithCacheEnabled");
*/
@MayloonStubAnnotation()
public void setAlwaysDrawnWithCacheEnabled(boolean always) {
System.out.println("Stub" + " Function : setAlwaysDrawnWithCacheEnabled");
return;
}
/**
* @j2sNative
* console.log("Missing method: debug");
*/
@MayloonStubAnnotation()
public String debug(String output) {
System.out.println("Stub" + " Function : debug");
return null;
}
}