public void shift(View view) {
if (!mShifted) {
foreach (ImageView imageView in mImageViews) {
ObjectAnimator tx = ObjectAnimator.OfFloat(imageView, View.X, (mRandom.NextFloat() - 0.5f) * 500);
tx.AddUpdateListener(new AnimListener(mBlurringView));
ObjectAnimator ty = ObjectAnimator.OfFloat(imageView, View.Y, (mRandom.NextFloat() - 0.5f) * 500);
ty.AddUpdateListener(new AnimListener(mBlurringView));
AnimatorSet set = new AnimatorSet();
set.PlayTogether(tx, ty);
set.SetDuration(3000);
set.SetInterpolator(new OvershootInterpolator());
set.AddListener(new AnimationEndListener(imageView));
set.Start();
};
mShifted = true;
} else {
foreach (ImageView imageView in mImageViews) {
ObjectAnimator tx = ObjectAnimator.OfFloat(imageView, View.X, 0);
tx.AddUpdateListener(new AnimListener(mBlurringView));
ObjectAnimator ty = ObjectAnimator.OfFloat(imageView, View.Y, 0);
ty.AddUpdateListener(new AnimListener(mBlurringView));
AnimatorSet set = new AnimatorSet();
set.PlayTogether(tx, ty);
set.SetDuration(3000);
set.SetInterpolator(new OvershootInterpolator());
set.AddListener(new AnimationEndListener(imageView));
set.Start();
};
mShifted = false;
}
}
/**
* Animates the pending {@link android.view.View} back to its original position.
*/
private void restoreCurrentViewTranslation()
{
if (mCurrentView == null)
{
return;
}
ObjectAnimator xAnimator = ObjectAnimator.OfFloat(mSwipingView, TRANSLATION_X, 0);
ObjectAnimator alphaAnimator = ObjectAnimator.OfFloat(mSwipingView, ALPHA, 1);
AnimatorSet animatorSet = new AnimatorSet();
animatorSet.PlayTogether(xAnimator, alphaAnimator);
animatorSet.SetDuration(mAnimationTime);
animatorSet.AddListener(new RestoreAnimatorListener(mCurrentView, mCurrentPosition,this));
animatorSet.Start();
}
/**
* Performs the undo animation and restores the original state for given {@link android.view.View}.
*
* @param view the parent {@code View} which contains both primary and undo {@code View}s.
*/
public void undo( View view) {
int position = AdapterViewUtil.getPositionForView(getListViewWrapper(), view);
mUndoPositions.Remove(position);
View primaryView = mCallback.getPrimaryView(view);
View undoView = mCallback.getUndoView(view);
primaryView.Visibility=ViewStates.Visible;
ObjectAnimator undoAlphaAnimator = ObjectAnimator.OfFloat(undoView, ALPHA, 1f, 0f);
ObjectAnimator primaryAlphaAnimator = ObjectAnimator.OfFloat(primaryView, ALPHA, 0f, 1f);
ObjectAnimator primaryXAnimator = ObjectAnimator.OfFloat(primaryView, TRANSLATION_X, primaryView.Width, 0f);
AnimatorSet animatorSet = new AnimatorSet();
animatorSet.PlayTogether(undoAlphaAnimator, primaryAlphaAnimator, primaryXAnimator);
animatorSet.AddListener(new UndoAnimatorListener(undoView,this));
animatorSet.Start();
mCallback.onUndo(view, position);
}
/**
* Flings given {@link android.view.View} out of sight.
*
* @param view the parent {@link android.view.View}.
* @param position the position of the item in the {@link android.widget.ListAdapter} corresponding to the {@code View}.
* @param flingToRight {@code true} if the {@code View} should be flinged to the right, {@code false} if it should be flinged to the left.
*/
private void flingView(View view, int position, bool flingToRight)
{
if (mViewWidth < 2)
{
mViewWidth = mListViewWrapper.getListView().Width;
}
View swipeView = getSwipeView(view);
ObjectAnimator xAnimator = ObjectAnimator.OfFloat(swipeView, TRANSLATION_X, flingToRight ? mViewWidth : -mViewWidth);
ObjectAnimator alphaAnimator = ObjectAnimator.OfFloat(swipeView, ALPHA, 0);
AnimatorSet animatorSet = new AnimatorSet();
animatorSet.PlayTogether(xAnimator, alphaAnimator);
animatorSet.SetDuration(mAnimationTime);
animatorSet.AddListener(new FlingAnimatorListener(view, position,this));
animatorSet.Start();
}
