@Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    requestWindowFeature(Window.FEATURE_NO_TITLE);
    setContentView(R.layout.activity_message);

    btn_back = (Button) findViewById(R.id.button_back);
    btn_delete_all = (Button) findViewById(R.id.button_delete_all);

    txt_title = (TextView) findViewById(R.id.textView_title);
    linearlayout_main = (LinearLayout) findViewById(R.id.linearlayout_main);

    txt_title.setTypeface(Global.face, Typeface.BOLD);
    btn_delete_all.setTypeface(Global.face, Typeface.BOLD);

    btn_back.setOnClickListener(
        new OnClickListener() {

          @Override
          public void onClick(View v) {
            // TODO Auto-generated method stub
            finish();
            Intent intent = new Intent(MessageActivity.this, MainActivity.class);
            startActivity(intent);
          }
        });

    btn_delete_all.setOnClickListener(
        new OnClickListener() {

          @Override
          public void onClick(View v) {
            DeleteMyMessages deleteMsg = new DeleteMyMessages();
            deleteMsg.execute();
          }
        });

    progressView = (FrameLayout) findViewById(R.id.progressView);
    disableButtons();
    GetMyMessages myMessages = new GetMyMessages();
    myMessages.execute();
  }
 @Override
 protected void onPostExecute(String result) {
   progressView.setVisibility(View.INVISIBLE);
   enableButtons();
   JSONObject reader;
   try {
     reader = new JSONObject(result);
     String errCode = reader.getString(Global.ERROR_CODE);
     if (errCode.equals("0")) {
       GetMyMessages myMessages = new GetMyMessages();
       myMessages.execute();
     } else {
       Toast.makeText(
               getApplicationContext(), reader.getString(Global.ERROR_MSG), Toast.LENGTH_LONG)
           .show();
     }
   } catch (JSONException e) {
     // TODO Auto-generated catch block
     e.printStackTrace();
   }
 }