/**
* Manage animation for Android >= KITKAT
*
* @param child
*/
private void ensureOrCancelAnimator(T child, bool withAnimation)
{
if (translationAnimator == null)
{
translationAnimator = ViewCompat.Animate(child);
translationAnimator.SetDuration(withAnimation ? ANIM_DURATION : 0);
translationAnimator.SetUpdateListener(
new CustomViewPropertyAnimatorUpdateListener((view) =>
{
// Animate snackbar
if (snackbarLayout != null && snackbarLayout.LayoutParameters is ViewGroup.MarginLayoutParams)
{
targetOffset = view.MeasuredHeight - view.TranslationY;
ViewGroup.MarginLayoutParams p = (ViewGroup.MarginLayoutParams)snackbarLayout.LayoutParameters;
p.SetMargins(p.LeftMargin, p.TopMargin, p.RightMargin, (int)targetOffset);
snackbarLayout.RequestLayout();
}
// Animate Floating Action Button
if (floatingActionButton != null && floatingActionButton.LayoutParameters is ViewGroup.MarginLayoutParams)
{
ViewGroup.MarginLayoutParams p = (ViewGroup.MarginLayoutParams)floatingActionButton.LayoutParameters;
fabTargetOffset = fabDefaultBottomMargin - view.TranslationY + snackBarY;
p.SetMargins(p.LeftMargin, p.TopMargin, p.RightMargin, (int)fabTargetOffset);
floatingActionButton.RequestLayout();
}
// Pass navigation height to listener
if (navigationPositionListener != null)
{
navigationPositionListener.onPositionChange((int)(view.MeasuredHeight - view.TranslationY + snackBarY));
}
})
);
translationAnimator.SetInterpolator(INTERPOLATOR);
}
else
{
translationAnimator.SetDuration(withAnimation ? ANIM_DURATION : 0);
translationAnimator.Cancel();
}
}
