Android循環服務每5秒啓動一次啓動

Question

我有下面的代碼，我想每5秒循環一次。我試圖使用廣播接收器和報警管理器，但沒有成功。我希望我的服務循環5次，然後永久停止。這是我發佈的第二個問題。請有人幫我修復代碼，我在我的Mac上堆積了2天。任何幫助將不勝感激。

代碼以循環每5秒

File key = new File(Environment.getExternalStorageDirectory(),"newfile"+Math.random()+".txt"); 
try { 
    key.createNewFile(); 
} catch (IOException e) { 
    e.printStackTrace(); 
} 

InfoReceiver.class服務

public class InfoReceiver extends Service { 

    @Override 
    public void onCreate() 
    { 
     AlarmManager alarmMgr = (AlarmManager)getSystemService(Context.ALARM_SERVICE); 
     Intent intent = new Intent(this, MyBroadcastReceiver.class); 
     PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0, intent, 0); 
     Calendar time = Calendar.getInstance(); 
     time.setTimeInMillis(System.currentTimeMillis()); 
     time.add(Calendar.SECOND, 5); 
     alarmMgr.set(AlarmManager.RTC_WAKEUP, 5000, pendingIntent); 
    } 
} 

InfoManager.class服務

public class InfoManager extends Service { 
    @Override 
    public void onCreate() { 
     File key = new File(Environment.getExternalStorageDirectory(),"newfile"+Math.random()+".txt"); 
     try { 
      key.createNewFile(); 
     } catch (IOException e) { 
      e.printStackTrace(); 
     } 
    } 
} 

MyBroadcastreceiver.class

public class MyBroadcastReceiver extends BroadcastReceiver { 
    private Context mContext; 
    @Override 
    public void onReceive(Context context, Intent intent) { 
     Intent startServiceIntent = new Intent(context, InfoManager.class); 
     context.startService(startServiceIntent); 
    } 
} 

清單代碼

<service 
    android:name=".InfoReceiver" 
    android:enabled="true" > 
</service> 
<service 
    android:name=".InfoManager" 
    android:enabled="true" > 
    <intent-filter> 
     <action android:name=".InfoManager" /> 
    </intent-filter> 
</service> 
<receiver 
    android:name=".MyBroadcastReceiver" 
    android:process=":remote" > 
    <intent-filter> 
     <action android:name="android.intent.action.BOOT_COMPLETED" /> 
    </intent-filter> 
</receiver> 

Answer 1

使用Handler.postDelayed（Runnable的R，長delayMillis）。你不需要定時器或鬧鐘管理器來做你想做的事情。保持簡單。

Answer 2

嘗試使用timer，而不是日曆，看看是否適合你。

Answer 3

嘗試這樣的..

counter= new MyCount(5000,1000); 
counter.start(); 

mycount的類...

static int n=0; 
public class MyCount extends CountDownTimer{ 
public MyCount(long millisInFuture, long countDownInterval) { 
super(millisInFuture, countDownInterval); 
} 
@Override 
public void onFinish() { 

if(n<5) 
    { 
    counter= new MyCount(5000,1000); 
    counter.start(); 


    File key = new File(Environment.getExternalStorageDirectory(),"newfile"+Math.random()+".txt"); 
     try { 
      key.createNewFile(); 
     } catch (IOException e) { 
      // TODO Auto-generated catch block 
      e.printStackTrace(); 
     } 

    n++; 
    } 

} 
@Override 
public void onTick(long millisUntilFinished) { 
    s1=millisUntilFinished; 

} 
}