I have a DatePicker in my project and would like to know how to get the value of the chosen date after you select it.
I know that in calenderView it looks like this:
calendarView.setOnDateChangeListener(new CalendarView.OnDateChangeListener() {
@Override
public void onSelectedDayChange(CalendarView view, int year, int month, int dayOfMonth) {
I would like to know how to do something like DatePicker
Prints of errors:
No need to add new . That way you would be creating a class with the interface DatePicker.OnDateChangedListener .
The correct way is to capture through findViewById or similar and add this event to setOnDateChangedListener method.
Example:
DatePicker datePicker = findViewById(R.id.datePicker);
datePicker.setOnDateChangedListener(new DatePicker.OnDateChangedListener() {
@Override
public void onDateChanged(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
System.out.println( String.format(Locale.CANADA, "%d/%d/%d", dayOfMonth, monthOfYear, year) );
}
});
In versions under 25, use the init method:
Example:
DatePicker datePicker = findViewById(R.id.datePicker);
Calendar calendar = Calendar.getInstance();
datePicker.init(calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH), calendar.get(Calendar.DAY_OF_MONTH), new DatePicker.OnDateChangedListener() {
@Override
public void onDateChanged(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
System.out.println( String.format(Locale.CANADA, "%d/%d/%d", dayOfMonth, monthOfYear, year) );
}
});
One way to do this is by using the Android DatePicker:
Create a class that extends DialogFragment and implements the interface DatePickerDialog.OnDateSetListener .
public class DatePickerFragment extends DialogFragment implements DatePickerDialog.OnDateSetListener {
private Listener listener;
public static DatePickerFragment getInstance(){
return new DatePickerFragment();
}
@NonNull
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
final Calendar c = Calendar.getInstance();
int year = c.get(Calendar.YEAR);
int month = c.get(Calendar.MONTH);
int day = c.get(Calendar.DAY_OF_MONTH);
return new DatePickerDialog(getActivity(), this, year, month, day);
}
@Override
public void onDateSet(DatePicker view, int year, int month, int day) {
//TODO criar metodo para formatar data
String date = year + " " + month + " " + day;
if(listener != null){
listener.onDatePicked(data);
}
}
public interface Listener{
void onDatePicked(String data);
}
public void setListener(Listener listener) {
this.listener = listener;
}
}
And then use it anywhere:
DatePickerFragment datePickerFragment = DatePickerFragment.getInstance();
datePickerFragment.setListener(new DatePickerFragment.Listener() {
@Override
public void onDatePicked(String date) {
//TODO fazer algo com a data retornada
}
});