抽基类(Fragment)

最新推荐文章于 2020-07-15 15:15:47 发布

原创最新推荐文章于 2020-07-15 15:15:47 发布 · 271 阅读

CC 4.0 BY-SA版权

本文详细介绍了MVP架构模式中的接口定义及其实现原理。通过具体的代码示例展示了IView接口的功能，BasePresenter抽象类中Presenter与View的绑定流程，以及BaseFragment中视图与Presenter的初始化过程。

部署运行你感兴趣的模型镜像

//接口

public interface IView {
Context context();

}

//P层

public abstract class BasePresenter<V extends IView> {
    protected V view;

    public BasePresenter(V view) {
        this.view = view;
        initModel();
    }

    protected abstract void initModel();
    void onDrestroy(){
        view=null;
    }

}

//V层

public abstract class BaseFragment<P extends BasePresenter> extends Fragment{
protected P presenter;

    @Nullable
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        View view = inflater.inflate(provideLayoutId(), null);
        presenter=providePresenter();
        return view;
    }

    @Override
    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
        initView();
        initListance();
        initData();
    }

protected abstract void initData();

protected abstract void initListance();

protected abstract void initView();

protected abstract P providePresenter();

protected abstract int provideLayoutId();

//懒加载

    @Override
    public void setUserVisibleHint(boolean isVisibleToUser) {
        super.setUserVisibleHint(isVisibleToUser);
        if (isVisibleToUser){
            if (presenter==null){
                return;
            }else {
                noVisible();
            }
            initData();
        }
    }

protected void noVisible(){};

    @Override
    public void onDestroy() {
        presenter.onDestroy();
        super.onDestroy();
    }
}

您可能感兴趣的与本文相关的镜像