/** Prepares the header bar layout. */
void reloadHeaderBarLayout() {
Resources res = mContext.getResources();
mWindowRect = mSystemServicesProxy.getWindowRect();
mStatusBarHeight = res.getDimensionPixelSize(com.android.internal.R.dimen.status_bar_height);
mNavBarHeight = res.getDimensionPixelSize(com.android.internal.R.dimen.navigation_bar_height);
mNavBarWidth = res.getDimensionPixelSize(com.android.internal.R.dimen.navigation_bar_width);
mConfig = RecentsConfiguration.reinitialize(mContext, mSystemServicesProxy);
mConfig.updateOnConfigurationChange();
Rect searchBarBounds = new Rect();
// Try and pre-emptively bind the search widget on startup to ensure that we
// have the right thumbnail bounds to animate to.
// Note: We have to reload the widget id before we get the task stack bounds below
if (mSystemServicesProxy.getOrBindSearchAppWidget(mContext, mAppWidgetHost) != null) {
mConfig.getSearchBarBounds(
mWindowRect.width(), mWindowRect.height(), mStatusBarHeight, searchBarBounds);
}
mConfig.getAvailableTaskStackBounds(
mWindowRect.width(),
mWindowRect.height(),
mStatusBarHeight,
(mConfig.hasTransposedNavBar ? mNavBarWidth : 0),
searchBarBounds,
mTaskStackBounds);
if (mConfig.isLandscape && mConfig.hasTransposedNavBar) {
mSystemInsets.set(0, mStatusBarHeight, mNavBarWidth, 0);
} else {
mSystemInsets.set(0, mStatusBarHeight, 0, mNavBarHeight);
}
// Inflate the header bar layout so that we can rebind and draw it for the transition
TaskStack stack = new TaskStack();
mDummyStackView = new TaskStackView(mContext, stack);
TaskStackViewLayoutAlgorithm algo = mDummyStackView.getStackAlgorithm();
Rect taskStackBounds = new Rect(mTaskStackBounds);
taskStackBounds.bottom -= mSystemInsets.bottom;
algo.computeRects(mWindowRect.width(), mWindowRect.height(), taskStackBounds);
Rect taskViewSize = algo.getUntransformedTaskViewSize();
int taskBarHeight = res.getDimensionPixelSize(R.dimen.recents_task_bar_height);
synchronized (mHeaderBarLock) {
mHeaderBar =
(TaskViewHeader) mInflater.inflate(R.layout.recents_task_view_header, null, false);
mHeaderBar.measure(
View.MeasureSpec.makeMeasureSpec(taskViewSize.width(), View.MeasureSpec.EXACTLY),
View.MeasureSpec.makeMeasureSpec(taskBarHeight, View.MeasureSpec.EXACTLY));
mHeaderBar.layout(0, 0, taskViewSize.width(), taskBarHeight);
}
}
/** Draws the header of a task used for the window animation into a bitmap. */
Bitmap drawThumbnailTransitionBitmap(Task toTask, TaskViewTransform toTransform) {
if (toTransform != null && toTask.key != null) {
Bitmap thumbnail;
synchronized (mHeaderBarLock) {
int toHeaderWidth = (int) (mHeaderBar.getMeasuredWidth() * toTransform.scale);
int toHeaderHeight = (int) (mHeaderBar.getMeasuredHeight() * toTransform.scale);
thumbnail = Bitmap.createBitmap(toHeaderWidth, toHeaderHeight, Bitmap.Config.ARGB_8888);
if (Constants.DebugFlags.App.EnableTransitionThumbnailDebugMode) {
thumbnail.eraseColor(0xFFff0000);
} else {
Canvas c = new Canvas(thumbnail);
c.scale(toTransform.scale, toTransform.scale);
mHeaderBar.rebindToTask(toTask);
mHeaderBar.draw(c);
c.setBitmap(null);
}
}
return thumbnail.createAshmemBitmap();
}
return null;
}