实现接口ServiceConnection

Question

步骤1.实现接口ServiceConnection所需的

public class ServiceBinding<T extends ParentService<T>> implements ServiceConnection {
    public T bindedService;

    @Override
    public void onServiceConnected(ComponentName className, IBinder service) {
        // Warning: Type safety: Unchecked cast from IBinder to ChatService<T>.LocalBinder
        bindedService = ((T.LocalBinder) service).getService();
    }

    @Override
    public void onServiceDisconnected(ComponentName arg0) {
    }
}

Parent-service的步骤2.将如下所示：

public abstract class ParentService<T extends ParentService<T>> extends Service {
    public class LocalBinder extends Binder {
        public T getService() {
            return (T) T.this; // Warning: Unchecked cast from ChatService<T> to T
        }
    };
}

问题：这样的解决方案可以接受吗？

如何正确地实现ServiceConnection？

Answer 1

你可以这样实现-

private ServiceConnection mConnection = new ServiceConnection() {

    @Override
    public void onServiceConnected(ComponentName className, IBinder service) {
        LocalBinder binder = (LocalBinder) service;
        service = binder.getService();
        boundVal = true;
    }

    @Override
    public void onServiceDisconnected(ComponentName arg0) {
        boundVal = false;
    }
};

boundVal是“unbindservice”的触发器。传递以连接为参数的边界。

一旦客户端服务器连接分别建立或断开，则调用onServiceConnected()和onServiceDisconnected()。对于onServiceConnected()方法，这将传递一个IBinder对象，其中包含客户端与服务交互所需的信息。干杯!