Faced the exact same issue today. Could not figure out why this was happening, but found a simple solution:
Method onTimeSet() is called once when dialog is dismissed and is called twice when Done button is clicked. Either way, there is one unwanted call to onTimeSet(). So I decided to always ignore the first call.
Here's the code:
Calendar mcurrentTime = Calendar.getInstance();
int hour = mcurrentTime.get(Calendar.HOUR_OF_DAY);
int minute = mcurrentTime.get(Calendar.MINUTE);
TimePickerDialog mTimePicker;
mTimePicker = new TimePickerDialog(MainActivity.this, new TimePickerDialog.OnTimeSetListener()
{
int callCount = 0; //To track number of calls to onTimeSet()
@Override
public void onTimeSet(TimePicker timePicker, int selectedHour, int selectedMinute)
{
if(callCount == 1) // On second call
{
timeString = selectedHour + ":" + selectedMinute + ":00";
Log.d("TEST", "Chosen time : "+ timeString);
}
callCount++; // Incrementing call count.
}
}, hour, minute, true);
mTimePicker.setTitle("Pick Time");
mTimePicker.show();