相关疑难解决方法(0)

我创建了一个名为HelloService的新类.我将其添加到Android manifest.xml中.

public class HelloService extends Service {
    private Timer timer = new Timer();
    private long INTERVAL = 5000;

    public void onCreate() {
        super.onCreate();
        startservice();

    }

    private void startservice() {
        timer.scheduleAtFixedRate( new TimerTask() {
            public void run() {
                Log.d("servy", "This proves that my service works.");
            }
        }, 0, INTERVAL);
    ; }

    private void stopservice() {
        if (timer != null){
            timer.cancel();
        }
    }

    @Override
    public IBinder onBind(Intent arg0) {
        return null;
    }
}

我的其他活动称之为:

    Intent helloservice = new Intent(this, HelloService.class);
    startService(helloservice); …

我在这个问题上已经阅读了大约100个问题和答案,但我似乎无法让这个工作.我正试图Service从一个开始Activity.我的清单文件似乎没问题,我启动的方式Service似乎也是正确的.LogCat中显示以下错误:

ActivityManager(1296): Unable to start service Intent
{ cmp=com.exercise.AndroidClient/com.client.Communication }: not found

我试图通过在我的调用中启动该服务Activity:

startService(new Intent(getApplicationContext(), Communication.class));

该Service如下:

public class Communication extends Service {
    public Communication() {
        super();
    }
    @Override
    public void onCreate() {
        super.onCreate();
        Log.i("Service", "Created service");
    }
    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        Log.i("Service", "onStartCommand called");
        return START_STICKY;
    }
    @Override
    public IBinder onBind(Intent arg0) {
        return null;
    }
}

我的清单文件中的条目是:

<?xml version="1.0" encoding="utf-8" ?>
<manifest …