code: public void clearPendingComposingMessage() {
  		ConversationProxy conversation = getConversation();
  		if (conversation != null) {
  			conversation.setMessageCenterPendingMessage(null);
  			conversation.setMessageCenterPendingAttachments(null);
  		}
  	}
docs: /* When no composing view is presented in the list view, calling this method
  will clear the pending composing message previously saved in shared preference