MVP练习网络请求

UserModel

public class UserModel implements IModel {

    ArrayList<UserBean.NewslistBean> list;

	//使用公开的那个接口
    private OnFinishLisenter lisenter;

	//定义一个公开的接口
    public interface OnFinishLisenter{

	//定义一个传值的方法，用来接收网络请求回来的数据
        void OnFinish(ArrayList<UserBean.NewslistBean> list);
    }
	//设置一个Set方法，穿进去那个接口类型的类，然后赋值
    public void setOnUserModel(OnFinishLisenter lisenter) {
        this.lisenter = lisenter;
    }

    @Override
    public void getJson(String url) {


        list = new ArrayList<>();

        Retrofit retrofit = new Retrofit.Builder().baseUrl(url).addConverterFactory(GsonConverterFactory.create()).addCallAdapterFactory(RxJavaCallAdapterFactory.create()).build();

        ApiService apiService = retrofit.create(ApiService.class);
        Observable<UserBean> user = apiService.getUser();

        user.subscribeOn(Schedulers.io())
                .observeOn(AndroidSchedulers.mainThread())
                .subscribe(new Observer<UserBean>() {
                    @Override
                    public void onCompleted() {

                    }

                    @Override
                    public void onError(Throwable e) {

                    }

                    @Override
                    public void onNext(UserBean userBean) {
                        list = (ArrayList<UserBean.NewslistBean>) userBean.getNewslist();
                        //Log.d("Main","+++++++++++++++++++++++++++++");

			//调用定义的赋值方法，把网络请求回来的数据传进去
                        lisenter.OnFinish(list);
                    }
                });

    }
}

UserPresenter

public class UserPresenter implements UserModel.OnFinishLisenter{

//实现接口
    private final IView userView;
    private final UserModel userModel;


    public UserPresenter(IView userView) {
        this.userView = userView;
        this.userModel = new UserModel();

//初始化Set方法，将当前类传进去
        userModel.setOnUserModel(this);
    }

    public void setJson(String url){
        userModel.getJson(url);
//        userModel.setOnUserModel(new UserModel.OnFinishLisenter() {
//            @Override
//            public void OnFinish(ArrayList<UserBean.NewslistBean> list) {
//                userView.getUser(list);
//            }
//        });

    }

//重写方法，里面的LIst集合现在就有数据了下面直接使用就好
    @Override
    public void OnFinish(ArrayList<UserBean.NewslistBean> list) {
        userView.getUser(list);
    }


 /*   @Override
    public void OnFinish(ArrayList<UserBean.NewslistBean> list) {
//        ArrayList<UserBean.NewslistBean> mlist;
//        mlist = new ArrayList<>();
//        mlist = list;

    }*/
}