@Override protected void onPreExecute() { super.onPreExecute(); if (username.getText().toString().length() == 0) { username.setError("用户名不能为空"); cancel(true); } if (password.getText().toString().length() == 0) { password.setError("密码不能为空"); cancel(true); } }
@Override protected void onPreExecute() { super.onPreExecute(); Toast.makeText(getActivity(), getString(R.string.remove_ing), Toast.LENGTH_SHORT).show(); }
@Override protected void onPreExecute() { super.onPreExecute(); if (isListViewFling()) cancel(true); }
@Override protected void onPreExecute() { super.onPreExecute(); }
@Override protected void onPreExecute() { super.onPreExecute(); pullToRefreshListView.setVisibility(View.INVISIBLE); }