android 设置时间12/24小时制

SimpleDateFormat sDateFormat ;

String date;

if(DateFormat.is24HourFormat(getActivity().getApplicationContext())){

  sDateFormat = new SimpleDateFormat("yyyy-MM-dd  HH:mm:ss");

  date = sDateFormat.format(new java.util.Date());

}else{

  sDateFormat = new SimpleDateFormat("yyyy-MM-dd  hh:mm:ss");

  date = sDateFormat.format(new java.util.Date()) + getPeroidText();

}

private CharSequence getPeroidText(){

   String am_pm =Calendar.getInstance().getTime().getHours() >= 12 ? "PM" : "AM";

  return am_pm;

}

原文地址:https://www.cnblogs.com/kulankadamei/p/3088888.html