/**
* Animates given View if necessary.
*
* @param position the position of the item the View represents.
* @param view the View that should be animated.
* @param parent the parent the View is hosted in.
*/
private void animateViewIfNecessary(int position, View view, ViewGroup parent)
{
//assert mViewAnimator != null;
/* GridView measures the first View which is returned by getView(int, View, ViewGroup), but does not use that View.
* On KitKat, it does this actually multiple times.
* Therefore, we animate all these first Views, and reset the last animated position when we suspect GridView is measuring. */
mGridViewPossiblyMeasuring = mGridViewPossiblyMeasuring && (mGridViewMeasuringPosition == -1 || mGridViewMeasuringPosition == position);
if (mGridViewPossiblyMeasuring)
{
mGridViewMeasuringPosition = position;
mViewAnimator.setLastAnimatedPosition(-1);
}
Animator[] childAnimators;
if (getDecoratedBaseAdapter() is AnimationAdapter)
{
childAnimators = ((AnimationAdapter)getDecoratedBaseAdapter()).getAnimators(parent, view);
}
else
{
childAnimators = new Animator[0];
}
Animator[] animators = getAnimators(parent, view);
Animator alphaAnimator = ObjectAnimator.OfFloat(view, ALPHA, 0, 1);
Animator[] concatAnimators = AnimatorUtil.concatAnimators(childAnimators, animators, alphaAnimator);
mViewAnimator.animateViewIfNecessary(position, view, concatAnimators);
}
/**
* Animates given View if necessary.
*
* @param position the position of the item the View represents.
* @param view the View that should be animated.
* @param parent the parent the View is hosted in.
*/
private void animateViewIfNecessary(int position, View view, ViewGroup parent)
{
Animator[] childAnimators;
if (getDecoratedBaseAdapter() is AnimationAdapter)
{
childAnimators = ((AnimationAdapter)getDecoratedBaseAdapter()).getAnimators(parent, view);
}
else
{
childAnimators = new Animator[0];
}
Animator alphaAnimator = ObjectAnimator.OfFloat(view, ALPHA, 0, 1);
//assert mViewAnimator != null;
mViewAnimator.animateViewIfNecessary(position, view, AnimatorUtil.concatAnimators(childAnimators, new Animator[0], alphaAnimator));
}