public void onClick(View v) {
   if (mUser == null) return;
   UIHelper.showTweetPub(UserCenter.this, "@" + mUser.getName() + " ", mUser.getUid());
 }
 public void onClick(View v) {
   if (mUser == null) return;
   UIHelper.showMessagePub(UserCenter.this, mUser.getUid(), mUser.getName());
 }