/**
* 设置系统日期和时间
* @param dateAndTime yyyy-MM-dd HH:mm:ss
*/
public static void setAndroidSystemTime(Context mContext,String dateAndTime){
//String time = "2019-01-17 17:30:54";
SimpleDateFormat simpleDateFormat = null;
if (simpleDateFormat == null) {
simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.getDefault());
}
Date date = null;
try {
date = simpleDateFormat.parse(dateAndTime);
} catch (ParseException e) {
Log.d("lixm","ParseException:",e);
}
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
long when = calendar.getTimeInMillis();
((AlarmManager) mContext.getSystemService(Context.ALARM_SERVICE)).setTime(when);
}
**
系统的网络设置 看这里
**