private void showPickerDialog(String title, String strDatetime) {
    if (mDialog == null) {
      mDialog = new PopupWindowDialog(mPathActivity);
      mDialog.setContentView(R.layout.datetime_picker);
    }

    View view = mDialog.getContentView();
    {
      view.findViewById(R.id.datetime_picker_close).setOnClickListener(this);
      view.findViewById(R.id.datetime_picker_cancel).setOnClickListener(this);
      view.findViewById(R.id.datetime_picker_submit).setOnClickListener(this);
    }

    TextView lblTitle = (TextView) view.findViewById(R.id.datetime_picker_title);
    datetime_picker_date = (DatePicker) view.findViewById(R.id.datetime_picker_date);
    datetime_picker_time = (TimePicker) view.findViewById(R.id.datetime_picker_time);
    lblTitle.setText(title);

    DateTime datetime = DateTime.from(strDatetime, "yyyy-MM-dd HH:mm");

    datetime_picker_date.init(
        datetime.getYear(), datetime.getMonth(), datetime.getDay(), null); // date.getDay()

    // pkrTime.setIs24HourView(true);// 24小时制
    datetime_picker_time.setCurrentHour(datetime.getHours()); // 设置当前小时。
    datetime_picker_time.setCurrentMinute(datetime.getMinutes()); // 当前分钟
    // datetime_picker_time.setOnTimeChangedListener(null);
    mDialog.show();
  }
 private void hidePickerDialog() {
   mDialog.destroy();
 }