在启动完成的android上启动服务?

我已经阅读了一些关于启动时启动服务的教程.我所做的是:

I've read some tutorial on launch service on boot. What I've done is:

在清单中:

<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" >
</uses-permission>

<receiver android:name="my.package.ServiceStartup" >
   <intent-filter>
       <action android:name="android.intent.action.BOOT_COMPLETED" />
   </intent-filter>
</receiver>

代码:

public class ServiceStartup extends BroadcastReceiver {

    public void onReceive(Context context, Intent intent) {
        Handler h = new Handler();
        h.postDelayed(new Runnable() {
           @Override
           public void run() {
               Intent dialogIntent = new Intent(getBaseContext(), MyActivity.class);
               dialogIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
               getApplication().startActivity(dialogIntent);
           }
        }, 10000);
    }
}

这样，如果我重新启动设备并在活动应用程序中进行设置，则不会启动我的服务.我能做什么?我在哪里出错?谢谢！！

In this way, if i reboot my device and go to setting in active applications, my service is not launched. What can I do? Where I make error? thanks!!