Android 进程保活 Notification详细说明

本来打算对Notification进行详细说明  和源码解读的  发现写的时刻又不想写。

 Notification 保活

算了 直接上源代码 

@Override
public int onStartCommand(Intent intent, int flags, int startId) {
    if (Build.VERSION.SDK_INT < 18) {
        startForeground(GRAY_SERVICE_ID, new Notification());
    } else {
        Intent innerIntent = new Intent(context, AuxiliaryService.class);
        startService(innerIntent);
        Notification notification = new Notification();
        startForeground(GRAY_SERVICE_ID, notification);
    }
    return super.onStartCommand(intent, flags, startId);
}

/**
 * 辅助Service 用来开启一个通知 就结束   不要创建内部类  不然回收有问题
 */
public class AuxiliaryService extends Service {
    @Nullable
    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }
    @Override
    public void onCreate() {
        super.onCreate();
    }
    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        startNotification();
        return super.onStartCommand(intent, flags, startId);
    }
    /** 启动通知*/
    private void startNotification(){
        Notification notification = new Notification();
        this.startForeground(MQTTService.GRAY_SERVICE_ID, notification);
        stopSelf(); //关键  如果AuxiliaryService 没有与什么组件绑定  系统就会回收
        stopForeground(true);
    }
}