How do I check if system is 12 or 24 hour?
Shouldn't it be
if (!DateFormat.is24HourFormat(this))
You want to assign am/pm only when it is not set to 24 hour format, right?
Here is a more compact version:
if (!DateFormat.is24HourFormat(this)) {
mHour = mCalendar.get(Calendar.HOUR_OF_DAY);
int hourOfDay = mHour;
if (hourOfDay >= 12) {
views.setTextViewText(R.id.AMPM, "pm");
} else {
views.setTextViewText(R.id.AMPM, "am");
}
} else {
views.setTextViewText(R.id.AMPM, "");
}
Better solution and whole code sample:
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
// below, the "hour" and "min" are variables,to which you want to set
//calendar.For example you can take this values from time picker
calendar.set(Calendar.HOUR_OF_DAY, hour);
calendar.set(Calendar.MINUTE, min);
is24HourFormat = android.text.format.DateFormat.is24HourFormat(context);
if (is24HourFormat) {
// if system uses 24hourformat dateFormat will format the calender time according to 24hourformat. "HH" means 24hourformat
CharSequence setTime = dateFormat.format("HH:mm", calendar);
} else {
// if system doesnt use 24hourformat dateFormat will format the calender time according to 12hourformat. "hh" means 12hourformat and "a" will show am/pm marker
CharSequence setTime = dateFormat.format("hh:mm a", calendar);
}
To always display AM/PM
in 12-hour format and not something like vorm/nachm
in german, use Locale.US
for the date format:
/**
* Returns the time in a localized format. The 12-hours format is always displayed with
* AM/PM (and not for example vorm/nachm in german).
*
* @param context the context
* @return Localized time (15:24 or 3:24 PM).
*/
public static String getTime(Context context, long time) {
if (android.text.format.DateFormat.is24HourFormat(context)) {
return new SimpleDateFormat("HH:mm", Locale.US).format(new Date(time));
} else {
return new SimpleDateFormat("hh:mm a", Locale.US).format(new Date(time));
}
}