Viewpager 轮播

package com.bwie.my_demo.activity;

import android.os.Handler;
import android.os.Message;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.webkit.WebView;
import android.widget.ImageView;

import com.bwie.my_demo.R;
import com.bwie.my_demo.Utils.Utils;
import com.bwie.my_demo.apdater.BannerApdater;
import com.bwie.my_demo.bean.Banner;
import com.google.gson.Gson;
import com.nostra13.universalimageloader.core.ImageLoader;

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

public class WebActivity extends AppCompatActivity implements Utils.Netcallback {

    private WebView webview;
    private ImageView tv_image;
    private ViewPager viewpager;
    private String path="https://api.yunxuekeji.cn/yunxue_app_api/content/getIndexBanner/1";
    private Utils utils;
    private List<ImageView>  list=new ArrayList<>();
    private Handler handler = new Handler(){

        @Override
        public void handleMessage(Message msg) {
            super.handleMessage(msg);
            switch (msg.what){
                case 1:
                    int i = viewpager.getCurrentItem();
                    i++;
                    viewpager.setCurrentItem(i);
                    handler.sendEmptyMessageDelayed(1,1000);
                    break;
            }

        }
    };
    private BannerApdater bapdater;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_web);

        webview = findViewById(R.id.web_view);
        tv_image = findViewById(R.id.tv_images);
        viewpager = findViewById(R.id.viewpager);


        utils = Utils.getInstance();
        utils.getSeriviceData(path);
        utils.setNetcallback(this);


        //图片按压事件
        viewpager.setOnTouchListener(new View.OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {
                switch(event.getAction()){
                    case MotionEvent.ACTION_DOWN:
                        handler.removeCallbacksAndMessages(null);
                        break;

                    case MotionEvent.ACTION_UP:
                       handler.sendEmptyMessageDelayed(1,1000);
                        break;
                }
                return false;
            }
        });

        //读取url
        String url = getIntent().getStringExtra("url");
        //判断是否为图片
        if(url.endsWith(".jpg")){

            tv_image.setVisibility(View.VISIBLE);
            ImageLoader.getInstance().displayImage(url,tv_image);
        }else{
            webview.setVisibility(View.VISIBLE);
            webview.loadUrl(url);
        }
    }

    @Override
    public void onccess(String s) {
        Log.i("bbb",s+"ss");
        Gson gson = new Gson();
        Banner banner = gson.fromJson(s, Banner.class);

        for (Banner.BodyBean.ResultBean resultBean : banner.getBody().getResult()) {
            ImageView imageView = new ImageView(this);
            imageView.setScaleType(ImageView.ScaleType.FIT_XY);
            ImageLoader.getInstance().displayImage(resultBean.getBarnerPic(),imageView);
            list.add(imageView);
        }

        bapdater = new BannerApdater(list);
        viewpager.setAdapter(bapdater);
        handler.sendEmptyMessageDelayed(1,1000);
    }
}

 

 

xml文件

 

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".activity.WebActivity"
    android:orientation="vertical"
    >

    <android.support.v4.view.ViewPager
        android:id="@+id/viewpager"
        android:layout_width="match_parent"
        android:layout_height="300dp"
        ></android.support.v4.view.ViewPager>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical"
        >

    <WebView
        android:id="@+id/web_view"
        android:layout_width="match_parent"
        android:layout_height="match_parent"></WebView>
        <ImageView
            android:id="@+id/tv_images"
            android:layout_width="match_parent"
            android:layout_height="300dp" />
    </LinearLayout>

</LinearLayout>