TimePickerDialog in a Fragment Class

Question

Can I implement

TimePickerDialog.OnTimeSetListener

in a Fragment class?

if it is possible HOW?

this is my TimePickerFragment.class

public class TimePickerFragment extends DialogFragment {


@NonNull
@Override

public Dialog onCreateDialog(Bundle savedInstanceState) {
    Calendar c = Calendar.getInstance();
    int cHour = c.get(Calendar.HOUR_OF_DAY);
    int cMinute = c.get(Calendar.MINUTE);

    return new TimePickerDialog(getActivity(), (TimePickerDialog.OnTimeSetListener) getActivity(), cHour, cMinute, android.text.format.DateFormat.is24HourFormat(getActivity()));
}
}

do I need to modify this code so i can use it in a Fragment class?

this is where i want to implement it

public class BluetoothFragment extends Fragment

i have already tried it but i'm getting this error

java.lang.ClassCastException: com.example.android.bluetoothplantdroid.MainActivity cannot be cast to android.app.TimePickerDialog$OnTimeSetListener

Answer 1

You can set Listener to your DialogFragment to get a callback in origin fragment

public class TimePickerFragment extends DialogFragment {

    public static TimePickerFragment newInstance() {
        return new TimePickerFragment();
    }

    private TimePickerDialog.OnTimeSetListener listener;

    @NonNull
    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        Calendar c = Calendar.getInstance();
        int cHour = c.get(Calendar.HOUR_OF_DAY);
        int cMinute = c.get(Calendar.MINUTE);

        return new TimePickerDialog(getActivity(), listener, cHour, cMinute,
                android.text.format.DateFormat.is24HourFormat(getActivity()));
    }

    public void setListener(TimePickerDialog.OnTimeSetListener listener) {
        this.listener = listener;
    }
}

This is how you can get a callback in origin fragment -

public class MyFragment extends Fragment implements TimePickerDialog.OnTimeSetListener {

   May be click event of some widget... {
       TimePickerFragment.newInstance().setListener(this);
       // Show your dialog
   }

    @Override
    public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
        // data when time has been set.
    }

}

Answer 2

Follow below Code : Pass Activity or Fragment context .

public static void setTimeFromTimePicker(Context context, EditText editText) {

        int hourOfDay, minute;

        final Calendar c = Calendar.getInstance();
        hourOfDay = c.get(Calendar.HOUR_OF_DAY);
        minute = c.get(Calendar.MINUTE);

        TimePickerDialog dpd = new TimePickerDialog(context, (timePicker, hourOfDay1, minute1) -> {

            Time time = new Time(hourOfDay1, minute1, 0);

            SimpleDateFormat simpleDateFormat = new 
            SimpleDateFormat("hh:mm aa", Locale.getDefault());
            String s = simpleDateFormat.format(time);
            editText.setText(s);
        }, hourOfDay, minute, false);

        dpd.show();
    }