Android 使用Handler模仿流行的AsyncHttpClient

public abstract class MyHandler extends Handler {

    public static final int SUCCESS = 0;
    public static final int FAILURE = 1;

    public abstract void onSuccess(String content);

    public abstract void onFailure(String content) ;

    @Override
    public void handleMessage(Message msg) {
        String content = (String) msg.obj;
        switch (msg.what) {
        case SUCCESS:
            onSuccess(content);
            break;
        case FAILURE:
            onFailure(content);
            break;
        default:
            break;
        }
    }
}