java - Android 服务无法启动 - 在 list 中...但什么也没有？

Question

更新:

添加建议的方法(doBindService() 和 doUnbindService())以及调用后无济于事)来自 here由 @Nick Campion 建议

我已经尝试了一段时间来运行此服务，但似乎没有任何效果 - 我知道我可能缺少分号或其他东西:)

程序调用startNotificationService()，然后日志显示日志消息...并且应用程序继续运行，但服务不显示。我找不到提前服务任务 killer 。救命!!!

XML( list 中):

    <service 
        android:icon="@drawable/icon" 
        android:label="Smart Spdate Service"
        android:name="notifyService">
    <intent-filter 
        android:label="FULL_PATH_NAME_HERE.updateService">
    </intent-filter>
</service>

服务调用

    Log.v("NOTICE", "Notification Service was not found running - starting");
    //startService(new Intent(this, notifyService.class));
    startService(new Intent(notifyService.class.getName()));
    //startService(new Intent(TweetCollectorService.class.getName()));

     /* FROM GOOGLE */
     void doBindService() {
    // Establish a connection with the service.  We use an explicit
    // class name because we want a specific service implementation that
    // we know will be running in our own process (and thus won't be
    // supporting component replacement by other applications).
    this.bindService(new Intent(this, updateService.class), mConnection, Context.BIND_AUTO_CREATE);
    mIsBound = true;
}

void doUnbindService() {
    if (mIsBound) {
        // Detach our existing connection.
        unbindService(mConnection);
        mIsBound = false;
    }
}
/* END OF GOOGLE CODE */
@Override
public void onDestroy() {
    web.close();
    doUnbindService(); // Added to `onDestroy` - suggested by Google page
    super.onDestroy();
    Log.v("NOTICE", "PROGRAM TERMINATED");
}

updateService.java

public class updateService extends Service {
private String TAG = "SERVICE";
public static final int INTERVAL = 60000;
private Timer timer = new Timer();
private static updateService Pointer;

public updateService() {
    Pointer = updateService.this;
}

public static class LocalBinder extends Binder {
    static updateService getService() {
        return Pointer;
    }
}

@Override
public void onCreate() {
    super.onCreate();
}

@Override
public void onDestroy() {
    if (timer != null) {
        timer.cancel();
    }
    super.onDestroy();
}

@Override
public void onStart(Intent intent, int startId) {
    timer.scheduleAtFixedRate(new TimerTask() {
        public void run() {
            doStuff();
        }
    }, 0, INTERVAL);
    super.onStart(intent, startId);
}

public void doStuff() {
    Log.v(TAG, "doStuff");
}

@Override
public IBinder onBind(Intent intent) {
    return mBinder;
}

private final IBinder mBinder = new LocalBinder();

}

Answer 1

我没有看到您的客户端与您的服务绑定(bind)的任何地方。看看local service example. 。即使调用 startService 也使用绑定(bind)模式的原因是因为 startService 调用是异步的。您需要进行额外的调用来绑定(bind)服务，以确保启动完成后您能得到回调。

我发现了一个非常好的服务示例 client和 service可以在 NPR Open Source App 中找到供您学习!