MVP+banner+banner点击事件+webview

                                                                                   实现banner轮播图

看一下效果图：



记住要加okhttp包和拦截器，可以从网上下载，记得添加okhttp、gson、banner、gilde和imageloader依赖，我也话不多说，直接上代码；

MVP的model界面代码：

package banner.bwie.com.banner.model;

import banner.bwie.com.banner.okhttp.OkHttp3Utils;
import okhttp3.Callback;

/**
* Created by CZ on 2017/12/2.
*/
public class BannerModel {
public void getData(Callback callback) {
//这是调用他的数据连接
OkHttp3Utils.doGet("http://120.27.23.105/ad/getAd", callback);
}
}

MVP的view界面代码：
package banner.bwie.com.banner.view;

import banner.bwie.com.banner.bean.Bean;

/**
* Created by CZ on 2017/12/2.
*/
public interface BannerView {
//成功
public void success(Bean bean);
//失败
public void fail(Exception e);
}


MVP的persenter界面代码:

package banner.bwie.com.banner.persenter;

import android.content.Context;

import com.google.gson.Gson;

import java.io.IOException;

import banner.bwie.com.banner.bean.Bean;
import banner.bwie.com.banner.model.BannerModel;
import banner.bwie.com.banner.okhttp.OnUiCallback;
import banner.bwie.com.banner.view.BannerView;
import okhttp3.Call;

/**
* Created by CZ on 2017/12/2.
*/
public class BannerPersenter {

BannerView view;
Context context;
private final BannerModel model;

public BannerPersenter(BannerView view, Context context) {
this.view = view;
this.context = context;
model = new BannerModel();
}

public void get() {
model.getData(new OnUiCallback() {
//请求数据失败后走这步
@Override
public void onFailed(Call call, IOException e) {
//判断view等于是否空
if (view != null) {
view.fail(e);
}
}

//成功走这步
@Override
public void onSuccess(String result) {
//gson解析
Gson gson = new Gson();
//把解析的数据添加到bean类里
Bean bean = gson.fromJson(result, Bean.class);
view.success(bean);

}
});
}

//防止内存泄漏
public void sds() {
this.view = null;
}
}


MainActivity 页面代码：

package banner.bwie.com.banner;

import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.widget.Toast;

import com.youth.banner.Banner;
import com.youth.banner.BannerConfig;
import com.youth.banner.Transformer;
import com.youth.banner.listener.OnBannerClickListener;

import java.util.ArrayList;
import java.util.List;

import banner.bwie.com.banner.bean.Bean;
import banner.bwie.com.banner.persenter.BannerPersenter;
import banner.bwie.com.banner.view.BannerView;

public class MainActivity extends AppCompatActivity implements BannerView {

BannerPersenter persenter = new BannerPersenter(this, this);
List<Integer> list = new ArrayList<>();
private Banner banner;
private List<String> imageArray;
private List<String> imageTitle;
List<Bean.DataBean> bean = new ArrayList<>();

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
banner = (Banner) findViewById(R.id.banner);
persenter.get();

}

@Override
public void success(final Bean bean) {
//往空的数组添加图片
imageArray = new ArrayList<>();
imageArray.add(bean.getData().get(0).getIcon());
imageArray.add(bean.getData().get(1).getIcon());
imageArray.add(bean.getData().get(2).getIcon());
imageArray.add(bean.getData().get(3).getIcon());
//往空的数组添加标题
imageTitle = new ArrayList<>();
imageTitle.add(bean.getData().get(0).getTitle());
imageTitle.add(bean.getData().get(1).getTitle());
imageTitle.add(bean.getData().get(2).getTitle());
imageTitle.add(bean.getData().get(3).getTitle());
//拿到的成员变量
banner = (Banner) findViewById(R.id.banner);
//设置banner样式 这个也可以换了直接点CIRCLE_INDICATOR就可以不用添加标题和动画了
banner.setBannerStyle(BannerConfig.CIRCLE_INDICATOR_TITLE_INSIDE);
//设置图片加载器
banner.setImageLoader(new GlideImageLoader());
//设置图片集合
banner.setImages(imageArray);
//设置banner动画效果
banner.setBannerAnimation(Transformer.RotateDown);
//设置标题集合（当banner样式有显示title时）
banner.setBannerTitles(imageTitle);
//设置轮播时间
banner.setDelayTime(1500);
//设置指示器位置（当banner模式中有指示器时）
banner.setIndicatorGravity(BannerConfig.CENTER);
//banner设置方法全部调用完毕时最后调用
banner.start();

//banner点击事件
banner.setOnBannerClickListener(new OnBannerClickListener() {
@Override
public void OnBannerClick(int position) {
Toast.makeText(MainActivity.this, "我要跳转到商品详情页", Toast.LENGTH_SHORT).show();
//循环拿出type
for (int i = 0; i < bean.getData().size(); i++) {
//判断type是0还是1
if (bean.getData().get(i).getType() == 0) {
//是0的话进行跳转
Intent intent = new Intent(MainActivity.this, WebViewActivity.class);
//通过intent传数据
intent.putExtra("url", bean.getData().get(i).getUrl());
startActivity(intent);
//否则是0，进行吐司
} else if (bean.getData().get(i).getType() == 1) {
Toast.makeText(MainActivity.this, "我要跳转到商品详情页", Toast.LENGTH_SHORT).show();
}
}
}
});
}

//这是没拿到数据的时候走的
@Override
public void fail(Exception e) {
Toast.makeText(MainActivity.this, "错误", Toast.LENGTH_SHORT).show();
}

//销毁事件
@Override
protected void onDestroy() {
super.onDestroy();
persenter.sds();
}
}

GlideImageLoader页面代码

注：imageloader用banner的

package banner.bwie.com.jingdongyemian.fragment_01;

import android.content.Context;
import android.widget.ImageView;

import com.bumptech.glide.Glide;
import com.youth.banner.loader.ImageLoader;

/**
* Created by CZ on 2017/12/5.
*/
public class GlideImageLoader extends ImageLoader {
@Override
public void displayImage(Context context, Object path, ImageView imageView) {
Glide.with(context).load((String) path).into(imageView);
}
}