How do I set AM/PM in a TimePicker?

Question

I am using a TimePicker in my app. Whenever the user opens the screen with the TimePicker, I initialize it with the current time. When I do this, the TimePicker shows AM ins

Answer 1

First, get an instance of the Calendar class, then use HOUR_OF_DAY to get the hour. HOUR_OF_DAY will be in 24-hour format so just assign that to a variable and then check whether that int is greater than 0 and less than 12. If this condition is true then append AM or else PM. Because HOUR_OF_DAY is 24-hour format, the PM hours will be displayed as 13,14 so to handle this, just subtract the HOUR_OF_DAY by 12. Here is the code:

Calendar calendar = Calendar.getInstance();
int hour = calendar.get(Calendar.HOUR_OF_DAY);
if (hour < 12 && hour >= 0) {
    tv.setText(hour + " AM");
} else {
    hour -= 12;
    if(hour == 0) {
        hour = 12;
    }
    tv.setText(hour + " PM");
}