private void showContextMenuFromView(
final View openingView,
int feedItem,
FeedContextMenu.OnFeedContextMenuItemClickListener listener) {
if (!isContextMenuShowing) {
isContextMenuShowing = true;
contextMenuView = new FeedContextMenu(openingView.getContext());
contextMenuView.bindToItem(feedItem);
contextMenuView.addOnAttachStateChangeListener(this);
contextMenuView.setOnFeedMenuItemClickListener(listener);
((ViewGroup) openingView.getRootView().findViewById(android.R.id.content))
.addView(contextMenuView);
contextMenuView
.getViewTreeObserver()
.addOnPreDrawListener(
new ViewTreeObserver.OnPreDrawListener() {
@Override
public boolean onPreDraw() {
contextMenuView.getViewTreeObserver().removeOnPreDrawListener(this);
setupContextMenuInitialPosition(openingView);
performShowAnimation();
return false;
}
});
}
}
private void performDismissAnimation() {
try {
contextMenuView.setPivotX(contextMenuView.getWidth() / 2);
contextMenuView.setPivotY(contextMenuView.getHeight());
contextMenuView
.animate()
.scaleX(0.1f)
.scaleY(0.1f)
.setDuration(150)
.setInterpolator(new AccelerateInterpolator())
.setStartDelay(100)
.setListener(
new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
if (contextMenuView != null) {
contextMenuView.dismiss();
}
isContextMenuDismissing = false;
}
});
} catch (Exception ex) {
}
}
private void setupContextMenuInitialPosition(View openingView) {
final int[] openingViewLocation = new int[2];
openingView.getLocationOnScreen(openingViewLocation);
int additionalBottomMargin = Utils.dpToPx(16);
contextMenuView.setTranslationX(openingViewLocation[0] - additionalBottomMargin * 3);
contextMenuView.setTranslationY(
openingViewLocation[1] - contextMenuView.getHeight() - additionalBottomMargin);
}
private void performShowAnimation() {
contextMenuView.setPivotX(contextMenuView.getWidth() / 2);
contextMenuView.setPivotY(contextMenuView.getHeight());
contextMenuView.setScaleX(0.1f);
contextMenuView.setScaleY(0.1f);
contextMenuView
.animate()
.scaleX(1f)
.scaleY(1f)
.setDuration(150)
.setInterpolator(new OvershootInterpolator())
.setListener(
new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
isContextMenuShowing = false;
}
});
}
public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
if (contextMenuView != null) {
hideContextMenu();
contextMenuView.setTranslationY(contextMenuView.getTranslationY() - dy);
}
}
