private void showChathead(Message message) {
    if (isDetached()) {
      return;
    }
    if (chatheadNotificationIsVisible || chatheadView == null) {
      return;
    }

    chatheadView.setMessage(message);

    final IConversation conversation = message.getConversation();
    chatheadView.setOnClickListener(
        new View.OnClickListener() {
          @Override
          public void onClick(View v) {
            if (chatheadNotificationIsVisible) {
              getStoreFactory()
                  .getConversationStore()
                  .setCurrentConversation(conversation, ConversationChangeRequester.CHAT_HEAD);
            }
          }
        });

    hideChatheadHandler.removeCallbacksAndMessages(null);

    if (MathUtils.floatEqual(chatheadView.getAlpha(), 1f)) {
      scheduleChatheadHide();
    } else {
      if (isDetached()) {
        return;
      }
      chatheadView
          .animate()
          .alpha(1)
          .translationX(0)
          .setDuration(
              getResources().getInteger(R.integer.notification__chathead_animation__duration))
          .withStartAction(
              new Runnable() {
                @Override
                public void run() {
                  chatheadNotificationIsVisible = true;
                  chatheadView.setTranslationX(-chatheadView.getMeasuredWidth());
                }
              })
          .withEndAction(
              new Runnable() {
                @Override
                public void run() {
                  scheduleChatheadHide();
                }
              })
          .start();
    }
  }
 @Override
 public void onDestroyView() {
   if (chatheadView != null) {
     chatheadView.tearDown();
   }
   chatheadView = null;
   if (hideChatheadHandler != null) {
     hideChatheadHandler.removeCallbacks(null);
     hideChatheadHandler = null;
   }
   notificationDisplayPrioritizer = null;
   super.onDestroyView();
 }