应用程序不在指定时间静音

Question

更新：终于到了测试。没有工作。更改了一些代码，明天再试。

在我的MainActivity中，我让程序从JSON数据中检索时间数据并将它们存储到变量中。然后我调用这个方法，将6种不同的时间分别分成几个小时和几分钟，然后将它们相乘，这样就可以毫秒为单位，然后在AlarmManager.RTC_WAKEUP中使用它们。下面是在MainActivity代码：

mPrayerTime = (Button) findViewById(R.id.muteButton); 
    mPrayerTime.setOnClickListener(new View.OnClickListener() { 


     @Override 
     public void onClick(View v) { 
      new fajrModel(); 
      new shurooqModel(); 
      new dhuhrModel(); 
      new asrModel(); 
      new maghribModel(); 
      new ishaModel(); 


      AlarmManager falarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE); 
      AlarmManager salarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE); 
      AlarmManager dalarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE); 
      AlarmManager aalarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE); 
      AlarmManager malarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE); 
      AlarmManager ialarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE); 

      Intent intent = new Intent(MainActivity.this, AlarmReciever.class); 
      PendingIntent pendingIntent = PendingIntent.getBroadcast(MainActivity.this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT); 




      //setting up calender for times. 
      Calendar fcal = Calendar.getInstance(); 
      SimpleDateFormat fTime = new SimpleDateFormat("h:mm a", Locale.ENGLISH); 
      try { 
       fcal.setTime(fTime.parse(fajr)); 
      } catch (ParseException e) { 
       e.printStackTrace(); 
      } 


      Calendar dcal = Calendar.getInstance(); 
      SimpleDateFormat dTime = new SimpleDateFormat("h:mm a", Locale.ENGLISH); 
      try { 
       dcal.setTime(dTime.parse(dhuhr)); 
      } catch (ParseException e) { 
       e.printStackTrace(); 
      } 


      Calendar scal = Calendar.getInstance(); 
      SimpleDateFormat sTime = new SimpleDateFormat("h:mm a", Locale.ENGLISH); 
      try { 
       scal.setTime(sTime.parse(shurooq)); 
      } catch (ParseException e) { 
       e.printStackTrace(); 
      } 


      Calendar acal = Calendar.getInstance(); 
      SimpleDateFormat aTime = new SimpleDateFormat("h:mm a", Locale.ENGLISH); 
      try { 
       acal.setTime(aTime.parse(asr)); 
      } catch (ParseException e) { 
       e.printStackTrace(); 
      } 


      Calendar mcal = Calendar.getInstance(); 
      SimpleDateFormat mTime = new SimpleDateFormat("h:mm a", Locale.ENGLISH); 
      try { 
       mcal.setTime(mTime.parse(maghrib)); 
      } catch (ParseException e) { 
       e.printStackTrace(); 
      } 


      Calendar ical = Calendar.getInstance(); 
      SimpleDateFormat iTime = new SimpleDateFormat("h:mm a", Locale.ENGLISH); 
      try { 
       ical.setTime(iTime.parse(isha)); 
      } catch (ParseException e) { 
       e.printStackTrace(); 
      } 

      Log.d("fajr", String.valueOf(ical)); 


      /*FAJR 

      */ 
      falarmManager.setExact(AlarmManager.RTC_WAKEUP, fcal.getTimeInMillis(), pendingIntent); 

      //SHUROOQ 

      salarmManager.setExact(AlarmManager.RTC_WAKEUP, scal.getTimeInMillis(), pendingIntent); 

      //Dhuhr 

      dalarmManager.setExact(AlarmManager.RTC_WAKEUP, dcal.getTimeInMillis(), pendingIntent); 

      //ASR 

      aalarmManager.setExact(AlarmManager.RTC_WAKEUP, acal.getTimeInMillis(), pendingIntent); 

      //MAGHRIB 

      malarmManager.setExact(AlarmManager.RTC_WAKEUP, mcal.getTimeInMillis(), pendingIntent); 

      //ISHA 
      ialarmManager.setExact(AlarmManager.RTC_WAKEUP, ical.getTimeInMillis(), pendingIntent); 


     } 


    }); 
} 

AlarmReceiver.java：

public class AlarmReciever extends WakefulBroadcastReceiver { 
@Override 
public void onReceive(final Context context, Intent intent) { 
    Toast.makeText(context, "Alarm worked.", Toast.LENGTH_LONG).show(); 
    AudioManager silent = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE); 
    silent.setRingerMode(AudioManager.RINGER_MODE_SILENT); 
} 

}

它确实没有这样的事情。它在那些时候将手机静音，并且为了测试它，我必须构建APK并将其放在手机上，并等待指定的时间，并且不发生任何事情。我在哪里出了问题

TLDR：即使应该在特定的时间，代码也不会使手机静音。

Answer 1

有两件事我要提醒你：

1，我建议你使用SimpleDateFormat获取小时，分钟，秒等，如：

String minute=new SimpleDateFormat("mm").format(date); 

2，我没有看到你的代码，但是，我知道AlarmManager未及时执行，它会在你的设置或之前执行，这是为了节省电力，并且自API 19

Answer 2

更改以下行

alarmManager.set(AlarmManager.RTC_WAKEUP, Long.parseLong(String.valueOf(totalFTime)), pendingIntent); 

到

alarmManager.setExact(AlarmManager.RTC_WAKEUP, Long.parseLong(String.valueOf(totalFTime)), pendingIntent);