DatePicker, DatePickerDialog

Puede muy fácilmente tener acceso a la DatePicker objeto encapsulado por el DatePickerDialog mediante la reflexión

DatePickerDialog dialog = ... // create dialog
Field mDatePickerField = dialog.getClass().getDeclaredField("mDatePicker");
mDatePickerField.setAccessible(true);
DatePicker mDatePickerInstance = (DatePicker) mDatePickerField.get(dialog);

Ejemplos para ser aplicados:

 

android.app.DatePickerDialog

final Calendar cal = Calendar.getInstance();

final Long time = getValue();

if (time != null) {

    cal.setTimeInMillis(time.longValue());

}

return new DatePickerDialog(

        getContext(),

        this,

        cal.get(Calendar.YEAR),

        cal.get(Calendar.MONTH),

        cal.get(Calendar.DAY_OF_MONTH));

 

  switch (id) {

        case TIME_DIALOG_ID:

            return new TimePickerDialog(this,

                    mTimeSetListener, mHour, mMinute, false);

        case DATE_DIALOG_ID:

            return new DatePickerDialog(this,

                        mDateSetListener,

                        mYear, mMonth, mDay);

    }

    return null;

}

@Override

protected Dialog onCreateDialog(int id) {

    switch (id) {

    case DATE_DIALOG_ID:

        return new DatePickerDialog(this, this, mYear, mMonth, mDay);

    default:

        break;

    }

    return null;

}

}     });           mMonthButton.setOnClickListener(new View.OnClickListener() {         public void onClick(View view) {             new DatePickerDialog(BudgetList.this, mDateSetListener, Buxoid.mYear, Buxoid.mMonth, 1).show();         }     });           registerForContextMenu(getListView()); }

    }

    });

     

    mMonthButton.setOnClickListener(new View.OnClickListener() {

        public void onClick(View view) {

            new DatePickerDialog(Analysis.this, mDateSetListener, Buxoid.mYear, Buxoid.mMonth, 1).show();

        }

    });

}

 

 

});   // set the onclick listener for the change date button mDate.setOnClickListener(new View.OnClickListener() {     public void onClick(View view) {         new DatePickerDialog(EditTransaction.this, mDateSetListener, mYear, mMonth-1, mDay).show();     } });   mTransId = icicle != null ? icicle.getLong(BuxoidDb.TRANS_ROWID) : null; mAccountId = icicle != null ? icicle.getString(BuxoidDb.TRANS_ACCOUNTID) : null;