TaskViewThumbnailpublic class TaskViewThumbnail extends android.view.View | The task thumbnail view. It implements an image view that allows for animating the dim and
alpha of the thumbnail image. |
| Fields Summary |
|---|
| com.android.systemui.recents.RecentsConfiguration | mConfig | | float | mDimAlpha | | android.graphics.Matrix | mScaleMatrix | | android.graphics.Paint | mDrawPaint | | android.graphics.RectF | mBitmapRect | | android.graphics.RectF | mLayoutRect | | android.graphics.BitmapShader | mBitmapShader | | android.graphics.LightingColorFilter | mLightingColorFilter | | float | mThumbnailAlpha | | android.animation.ValueAnimator | mThumbnailAlphaAnimator | | ValueAnimator.AnimatorUpdateListener | mThumbnailAlphaUpdateListener | | android.view.View | mTaskBar | | android.graphics.Rect | mClipRect | | boolean | mInvisible |
| Constructors Summary |
|---|
public TaskViewThumbnail(android.content.Context context)
this(context, null);
| public TaskViewThumbnail(android.content.Context context, android.util.AttributeSet attrs)
this(context, attrs, 0);
| public TaskViewThumbnail(android.content.Context context, android.util.AttributeSet attrs, int defStyleAttr)
this(context, attrs, defStyleAttr, 0);
| public TaskViewThumbnail(android.content.Context context, android.util.AttributeSet attrs, int defStyleAttr, int defStyleRes)
super(context, attrs, defStyleAttr, defStyleRes);
mConfig = RecentsConfiguration.getInstance();
mDrawPaint.setColorFilter(mLightingColorFilter);
mDrawPaint.setFilterBitmap(true);
mDrawPaint.setAntiAlias(true);
|
| Methods Summary |
|---|
| protected void | onDraw(android.graphics.Canvas canvas)
if (mInvisible) {
return;
}
// Draw the thumbnail with the rounded corners
canvas.drawRoundRect(0, 0, getWidth(), getHeight(),
mConfig.taskViewRoundedCornerRadiusPx,
mConfig.taskViewRoundedCornerRadiusPx, mDrawPaint);
| | protected void | onFinishInflate()
mThumbnailAlpha = mConfig.taskViewThumbnailAlpha;
updateThumbnailPaintFilter();
| | void | onFocusChanged(boolean focused)Handles focus changes.
if (focused) {
if (Float.compare(getAlpha(), 1f) != 0) {
startFadeAnimation(1f, 0, 150, null);
}
} else {
if (Float.compare(getAlpha(), mConfig.taskViewThumbnailAlpha) != 0) {
startFadeAnimation(mConfig.taskViewThumbnailAlpha, 0, 150, null);
}
}
| | protected void | onLayout(boolean changed, int left, int top, int right, int bottom)
super.onLayout(changed, left, top, right, bottom);
if (changed) {
mLayoutRect.set(0, 0, getWidth(), getHeight());
updateThumbnailScale();
}
| | void | prepareEnterRecentsAnimation(boolean isTaskViewLaunchTargetTask)Prepares for the enter recents animation, this gets called before the the view
is first visible and will be followed by a startEnterRecentsAnimation() call.
if (isTaskViewLaunchTargetTask) {
mThumbnailAlpha = 1f;
} else {
mThumbnailAlpha = mConfig.taskViewThumbnailAlpha;
}
updateThumbnailPaintFilter();
| | void | rebindToTask(com.android.systemui.recents.model.Task t)Binds the thumbnail view to the task
if (t.thumbnail != null) {
setThumbnail(t.thumbnail);
} else {
setThumbnail(null);
}
| | public void | setDimAlpha(float dimAlpha)Sets the dim alpha, only used when we are not using hardware layers.
(see RecentsConfiguration.useHardwareLayers)
mDimAlpha = dimAlpha;
updateThumbnailPaintFilter();
| | void | setThumbnail(android.graphics.Bitmap bm)Sets the thumbnail to a given bitmap.
if (bm != null) {
mBitmapShader = new BitmapShader(bm, Shader.TileMode.CLAMP,
Shader.TileMode.CLAMP);
mDrawPaint.setShader(mBitmapShader);
mBitmapRect.set(0, 0, bm.getWidth(), bm.getHeight());
updateThumbnailScale();
} else {
mBitmapShader = null;
mDrawPaint.setShader(null);
}
updateThumbnailPaintFilter();
| | void | startEnterRecentsAnimation(int delay, java.lang.Runnable postAnimRunnable)Animates this task thumbnail as it enters Recents.
startFadeAnimation(mConfig.taskViewThumbnailAlpha, delay,
mConfig.taskViewEnterFromAppDuration, postAnimRunnable);
| | void | startFadeAnimation(float finalAlpha, int delay, int duration, java.lang.Runnable postAnimRunnable)Starts a new thumbnail alpha animation.
Utilities.cancelAnimationWithoutCallbacks(mThumbnailAlphaAnimator);
mThumbnailAlphaAnimator = ValueAnimator.ofFloat(mThumbnailAlpha, finalAlpha);
mThumbnailAlphaAnimator.setStartDelay(delay);
mThumbnailAlphaAnimator.setDuration(duration);
mThumbnailAlphaAnimator.setInterpolator(mConfig.fastOutSlowInInterpolator);
mThumbnailAlphaAnimator.addUpdateListener(mThumbnailAlphaUpdateListener);
if (postAnimRunnable != null) {
mThumbnailAlphaAnimator.addListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
postAnimRunnable.run();
}
});
}
mThumbnailAlphaAnimator.start();
| | void | startLaunchTaskAnimation(java.lang.Runnable postAnimRunnable)Animates this task thumbnail as it exits Recents.
startFadeAnimation(1f, 0, mConfig.taskViewExitToAppDuration, postAnimRunnable);
| | void | unbindFromTask()Unbinds the thumbnail view from the task
setThumbnail(null);
| | void | updateClipToTaskBar(android.view.View taskBar)Updates the clip rect based on the given task bar.
mTaskBar = taskBar;
int top = (int) Math.max(0, taskBar.getTranslationY() +
taskBar.getMeasuredHeight() - 1);
mClipRect.set(0, top, getMeasuredWidth(), getMeasuredHeight());
setClipBounds(mClipRect);
| | void | updateThumbnailPaintFilter()Updates the paint to draw the thumbnail.
if (mInvisible) {
return;
}
int mul = (int) ((1.0f - mDimAlpha) * mThumbnailAlpha * 255);
int add = (int) ((1.0f - mDimAlpha) * (1 - mThumbnailAlpha) * 255);
if (mBitmapShader != null) {
mLightingColorFilter.setColorMultiply(Color.argb(255, mul, mul, mul));
mLightingColorFilter.setColorAdd(Color.argb(0, add, add, add));
mDrawPaint.setColorFilter(mLightingColorFilter);
mDrawPaint.setColor(0xffffffff);
} else {
int grey = mul + add;
mDrawPaint.setColorFilter(null);
mDrawPaint.setColor(Color.argb(255, grey, grey, grey));
}
invalidate();
| | void | updateThumbnailScale()Updates the thumbnail shader's scale transform.
if (mBitmapShader != null) {
mScaleMatrix.setRectToRect(mBitmapRect, mLayoutRect, Matrix.ScaleToFit.FILL);
mBitmapShader.setLocalMatrix(mScaleMatrix);
}
| | void | updateThumbnailVisibility(int clipBottom)Updates the visibility of the the thumbnail.
boolean invisible = mTaskBar != null && (getHeight() - clipBottom) <= mTaskBar.getHeight();
if (invisible != mInvisible) {
mInvisible = invisible;
if (!mInvisible) {
updateThumbnailPaintFilter();
}
invalidate();
}
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