[Android] AsyncTask 백그라운드 작업

private class ConnectTask2 extends AsyncTask<Void, Void, Void> {

private ProgressDialog progressDialog;

@Override

protected void onPreExecute() {

super.onPreExecute();

progressDialog = new ProgressDialog(context);

progressDialog.setMessage("트위터로 로그인 중입니다.");

progressDialog.setOnCancelListener(new OnCancelListener() {

@Override

public void onCancel(DialogInterface dialog) {

cancel(false);

}

});

progressDialog.show();

}

@Override

protected Void doInBackground(Void... v) {

twitterLogin();

return (Void)null;

}

@Override

protected void onProgressUpdate(Void... v) {

//TODO show progress

}

@Override

protected void onPostExecute(Void v) {

progressDialog.dismiss();

((TextView) findViewById(R.id.txtTwitterConnect)).setText("트위터연동중");

((Button) findViewById(R.id.btnTwitterConnect)).setVisibility(View.INVISIBLE);

((TextView) findViewById(R.id.TwitterID)).setVisibility(View.VISIBLE);

((TextView) findViewById(R.id.TwitterID)).setText(twitterScreenName);

}

}