popupwindow.java

	private OnClickListener popupClickListener = new OnClickListener() {

		@Override
		public void onClick(View v) {
			switch (v.getId()) {
			case R.id.share_google:
				System.out.println("===== share_google");
				break;
			case R.id.share_facebook:
				System.out.println("===== share_facebook");
				break;
			case R.id.share_twitter:
				System.out.println("===== share_twitter");
				break;
			default:
				break;
			}
			popupWindow.dismiss();
		}
	};

	private void initSharePopup() {
		popupLayout = (LinearLayout) LayoutInflater.from(this).inflate(
				R.layout.popup_share_layout, null);
		popupLayout.findViewById(R.id.share_google).setOnClickListener(
				popupClickListener);
		popupLayout.findViewById(R.id.share_facebook).setOnClickListener(
				popupClickListener);
		popupLayout.findViewById(R.id.share_twitter).setOnClickListener(
				popupClickListener);
		popupWindow = new PopupWindow(popupLayout,
				WindowManager.LayoutParams.WRAP_CONTENT,
				WindowManager.LayoutParams.WRAP_CONTENT);
	}
	
		private void showSharePopupMenu(View v) {
		if (popupWindow.isShowing()) {
			popupWindow.dismiss();
		} else {
			if (mFullScreen) {
				float px = TypedValue.applyDimension(
						TypedValue.COMPLEX_UNIT_DIP, 10, getResources()
								.getDisplayMetrics());
				popupWindow.showAsDropDown(v, (int) -px, (int) px);
			} else {
				popupWindow.showAsDropDown(v);
			}
		}

	}

view.java

Can't get action view for ActionBar MenuItem using support library

@Override
	public boolean onOptionsItemSelected(MenuItem item) {
		if(item.getItemId() == R.id.action_filter){
			View view= getActivity().findViewById(R.id.action_filter);
			showFilterWindow(view);
		}
		return super.onOptionsItemSelected(item);
	}