Question

我有以下代码（缩写为相关部分）。如果我在特定时间设置了警报管理器，并且在此时间到来时通知未显示。我想像sun-mon-tue一样设置日期。

Code Snippet :

public class service extends Service {

    private int Period_You_Want_in_MilliSecond = 30 * 1000;
    Calendar calender ;
    SimpleDateFormat format ;

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        DataBase DB=new DataBase(this);
        //get row from database where id=1
        final CourseClass C=DB.getCousre(1);

        calender = Calendar.getInstance();
        format = new SimpleDateFormat("hh:mm aa");

        Toast.makeText(getApplicationContext(), "service entered", Toast.LENGTH_LONG).show();

        final Handler h = new Handler();
        Runnable r = new Runnable() {

            @Override
            public void run() {


                String current_time = format.format(calender.getTime());
                //Toast.makeText(getApplicationContext(), ""+current_time,Toast.LENGTH_LONG).show();

                //check if the row reterned if filed name has data lenght>0 return True
                if(C.getName().length()>0){
                    if(current_time.equals("01:24 PM")){
                        //Toast.makeText(getApplicationContext(), "TIMER",Toast.LENGTH_LONG).show();

                        show_notification();

                    }
                }
                h.postDelayed(this,Period_You_Want_in_MilliSecond);
            }
        };      


        h.post(r);

        return super.onStartCommand(intent, flags, startId);
    }
}

Answer 1

您正在使用AlarmManager，而您正在使用处理程序。看看this example.

AlarmManager在特定时间显示通知

1 个答案: