Android DatePicker change to only Month and Year

Question

I have a DatePickerDialog and I want view only Month and Year. How can I change this code?

public void chooseDate2(View v) {
    new DatePickerDialog(
        act.this,
        d1,
        dateAndTime1.get(Calendar.YEAR) + 2,
        dateAndTime1.get(Calendar.MONTH),
        dateAndTime1.get(Calendar.DAY_OF_MONTH)
    ).show();
}
private void updateLabel2() {
    scadenza.setText(fmtDateAndTime.format(dateAndTime1.getTime()));           
}
DatePickerDialog.OnDateSetListener d1=new DatePickerDialog.OnDateSetListener() {
    public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
        dateAndTime1.set(Calendar.YEAR, year);
        dateAndTime1.set(Calendar.MONTH, monthOfYear);
        dateAndTime1.set(Calendar.DAY_OF_MONTH, dayOfMonth);
        updateLabel2();
    }
};

Thanks

Answer 1

As i recently stumbled across this problem myself, i tested multiple solutions from this post and similar questions on Stackoverflow.

Unfortunately i found no working solution especially for Android 5+

I ended up with implementing my own simple DialogFragment embedding two NumberPickers. This should be compatible with all versions from 3.0 and upwards.

Here is the code:

  public class MonthYearPickerDialog extends DialogFragment {

  private static final int MAX_YEAR = 2099;
  private DatePickerDialog.OnDateSetListener listener;

  public void setListener(DatePickerDialog.OnDateSetListener listener) {
    this.listener = listener;
  }

  @Override
  public Dialog onCreateDialog(Bundle savedInstanceState) {
    AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
    // Get the layout inflater
    LayoutInflater inflater = getActivity().getLayoutInflater();

    Calendar cal = Calendar.getInstance();

    View dialog = inflater.inflate(R.layout.date_picker_dialog, null);
    final NumberPicker monthPicker = (NumberPicker) dialog.findViewById(R.id.picker_month);
    final NumberPicker yearPicker = (NumberPicker) dialog.findViewById(R.id.picker_year);

    monthPicker.setMinValue(0);
    monthPicker.setMaxValue(11);
    monthPicker.setValue(cal.get(Calendar.MONTH));

    int year = cal.get(Calendar.YEAR);
    yearPicker.setMinValue(year);
    yearPicker.setMaxValue(MAX_YEAR);
    yearPicker.setValue(year);

    builder.setView(dialog)
        // Add action buttons
        .setPositiveButton(R.string.ok, new DialogInterface.OnClickListener() {
          @Override
          public void onClick(DialogInterface dialog, int id) {
            listener.onDateSet(null, yearPicker.getValue(), monthPicker.getValue(), 0);
          }
        })
        .setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() {
          public void onClick(DialogInterface dialog, int id) {
            MonthYearPickerDialog.this.getDialog().cancel();
          }
        });
    return builder.create();
  }
}

And the layout

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
              android:layout_width="fill_parent"
              android:layout_height="fill_parent"
              android:orientation="vertical">

    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:orientation="horizontal">

        <NumberPicker
            android:id="@+id/picker_month"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginEnd="20dp"
            android:layout_marginRight="20dp">

        </NumberPicker>

        <NumberPicker
            android:id="@+id/picker_year"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content">

        </NumberPicker>

    </LinearLayout>
</LinearLayout>

To show the layout use:

MonthYearPickerDialog pd = new MonthYearPickerDialog();
pd.setListener(this);
pd.show(getFragmentManager(), "MonthYearPickerDialog");

Answer 2

I don't recommend using Reflection to do this kind of thing.

There is a simpler and more pretty way to do so:

((ViewGroup) datePickerDialog.getDatePicker()).findViewById(Resources.getSystem().getIdentifier("day", "id", "android")).setVisibility(View.GONE);

Be aware that .getDatePicker() method from DatePickerDialog works on API LEVEL >= 11.

In addition it does not work on API LEVEL >= 21.

Answer 3

Try the following code. It will show a DatePicker with only the year and month (without day)

private DatePickerDialog createDialogWithoutDateField() {
        DatePickerDialog dpd = new DatePickerDialog(this, null, 2014, 1, 24);
        try {
            java.lang.reflect.Field[] datePickerDialogFields = dpd.getClass().getDeclaredFields();
            for (java.lang.reflect.Field datePickerDialogField : datePickerDialogFields) {
                if (datePickerDialogField.getName().equals("mDatePicker")) {
                    datePickerDialogField.setAccessible(true);
                    DatePicker datePicker = (DatePicker) datePickerDialogField.get(dpd);
                    java.lang.reflect.Field[] datePickerFields = datePickerDialogField.getType().getDeclaredFields();
                    for (java.lang.reflect.Field datePickerField : datePickerFields) {
                        Log.i("test", datePickerField.getName());
                        if ("mDaySpinner".equals(datePickerField.getName())) {
                            datePickerField.setAccessible(true);
                            Object dayPicker = datePickerField.get(datePicker);
                            ((View) dayPicker).setVisibility(View.GONE);
                        }
                    }
                }
            }
        } 
        catch (Exception ex) {
        }
        return dpd;
    }

This method returns a date picker dialog. So , in your button's onClick method add the following code to display your dialog.

createDialogWithoutDateField().show();