Android MVP实现接口Banner轮播图-白红宇

Android MVP实现接口Banner轮播图

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发布时间：2019-03-15

本文共 3809 字，大约阅读时间需要 12 分钟。

Mainactivity

package com.example.lunbo;import android.content.Context;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.View;import android.widget.ImageView;import android.widget.Toast;import com.bumptech.glide.Glide;import com.example.lunbo.bean.Result;import com.example.lunbo.bean.User;import com.example.lunbo.core.CallBacks;import com.example.lunbo.presenter.LunPresenter;import com.youth.banner.Banner;import com.youth.banner.loader.ImageLoader;import java.util.ArrayList;import java.util.List;public class MainActivity extends AppCompatActivity implements CallBacks
   
    
     >{    String url = "http://www.zhaoapi.cn/ad/getAd";    List
     
       string = new ArrayList<>();    List
      
        muser = new ArrayList<>();    private Banner banner;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        //获取控件        banner = findViewById(R.id.banner);        //创建presenter        LunPresenter lunPresenter = new LunPresenter(this);        lunPresenter.add(url);    }    //成功    @Override    public void success(List
       
         data) {        Toast.makeText(this, ""+data.toString(), Toast.LENGTH_SHORT).show();        muser.addAll(data);        //轮播图方法        mBanners();    }    //失败    @Override    public void fail(Result result) {        Toast.makeText(this, ""+result.getMsg(), Toast.LENGTH_SHORT).show();    }    //轮播图    private void mBanners() {        banner.setImageLoader(new ImageLoader() {            @Override            public void displayImage(Context context, Object path, ImageView imageView) {                //  使用Glide 加载图片                Glide.with(MainActivity.this).load(path).into(imageView);            }        });        //  for循环   加载图片        for (int i = 0; i < muser.size(); i++) {            String icon = muser.get(i).getIcon();            string.add(icon);        }        banner.setImages(string); //  设置        banner.start();   //  开始    }}

布局

Presenter层

package com.example.lunbo.presenter;import android.os.Handler;import android.os.Looper;import android.os.Message;import com.example.lunbo.MainActivity;import com.example.lunbo.bean.Result;import com.example.lunbo.core.CallBacks;import com.example.lunbo.model.LunModel;public class LunPresenter {    CallBacks callBacks;    public LunPresenter(CallBacks callBacks) {        this.callBacks=callBacks;    }    Handler handler = new Handler(Looper.getMainLooper()){        @Override        public void handleMessage(Message msg) {            Result result = (Result) msg.obj;            if (result.getCode()==0){                callBacks.success(result.getData());            }else {                callBacks.fail(result);            }        }    };    public void add(final String url) {        new Thread(new Runnable() {            @Override            public void run() {                Result result = LunModel.lun(url);                Message message = handler.obtainMessage();                message.obj=result;                handler.sendMessage(message);            }        }).start();    }}

Model

package com.example.lunbo.model;import com.example.lunbo.bean.Result;import com.example.lunbo.bean.User;import com.example.lunbo.utils.OkHttp;import com.google.gson.Gson;import com.google.gson.reflect.TypeToken;import java.lang.reflect.Type;import java.util.List;public class LunModel {    public static Result lun(String url){        String s = OkHttp.get(url);        Gson gson = new Gson();        Type type = new TypeToken
   
    
     
      >>() {}.getType();        Result result = gson.fromJson(s, type);        return result;    }}

依赖