Banner轮播图的使用方法

//需要添加依赖和添加网络权限

compile'com.youth.banner:banner:1.4.9'

<uses-permissionandroid:name="android.permission.INTERNET" />
 
<uses-permissionandroid:name="android.permission.READ_EXTERNAL_STORAGE" />

//控件

<com.youth.banner.Banner
    android:layout_width="match_parent"
    android:layout_height="200dp"
    android:id="@+id/banner"
    >com.youth.banner.Banner>

//操作 

private Banner  banner;
    private List list = new ArrayList<>();

//网络上请求的数据
    private String  path = "http://api.kkmh.com/v1/topic_new/discovery_list?gender=0&sa_event=eyJwcm9qZWN0Ijoia3VhaWthbl9hcHAiLCJ0aW1lIjoxNDg3ODM5MDM5MzE1LCJwcm9wZXJ0aWVzIjp7IkhvbWVwYWdlVGFiTmFtZSI6IueDremXqCIsIlZDb21tdW5pdHlUYWJOYW1lIjoi54Ot6ZeoIiwiJG9zX3ZlcnNpb24iOiI0LjIuMiIsIkdlbmRlclR5cGUiOiLlpbPniYgiLCJGcm9tRmluZENhdGVnb3J5VGFiTmFtZSI6IuWFqOmDqCIsIklzQXV0b0xvYWQiOmZhbHNlLCIkbGliX3ZlcnNpb24iOiIxLjYuMzQiLCIkbmV0d29ya190eXBlIjoiV0lGSSIsIiR3aWZpIjp0cnVlLCIkbWFudWZhY3R1cmVyIjoic2Ftc3VuZyIsIkZyb21GaW5kVGFiTmFtZSI6IuaOqOiNkCIsIiRzY3JlZW5faGVpZ2h0Ijo1NzYsIkNhdGVnb3J5Ijoi5peg5rOV6I635Y-WIiwiSG9tZXBhZ2VVcGRhdGVEYXRlIjowLCJQcm9wZXJ0eUV2ZW50IjoiUmVhZEZpbmRQYWdlIiwiRmluZFRhYk5hbWUiOiLmjqjojZAiLCJhYnRlc3RfZ3JvdXAiOjQ2LCIkc2NyZWVuX3dpZHRoIjoxMDI0LCJGaW5kQ2F0ZWdvcnlUYWJOYW1lIjoi5YWo6YOoIiwiJG9zIjoiQW5kcm9pZCIsIlRyaWdnZXJQYWdlIjoiSG9tZVBhZ2UiLCIkY2FycmllciI6IkNNQ0MiLCIkbW9kZWwiOiJHVC1QNTIxMCIsIiRhcHBfdmVyc2lvbiI6IjMuOC4xIn0sInR5cGUiOiJ0cmFjayIsImRpc3RpbmN0X2lkIjoiQTo5MDUxMDQyNzYzNzU1MTA5Iiwib3JpZ2luYWxfaWQiOiJBOjkwNTEwNDI3NjM3NTUxMDkiLCJldmVudCI6IlJlYWRGaW5kUGFnZSJ9";

//这个是固定数据的操作

//    private  String[]  images = {
//            "http://l2.51fanli.net//tuan//images//1//5806eac956808.jpg",
//            "http://l2.51fanli.net//tuan//images//b//580991bb30560.jpg",
//            "http://l0.51fanli.net//tuan//images//b//58115f2593dc3.jpg",
//            "http://l2.51fanli.net//tuan//images//0//57923840b054d.jpg",
//            "http://l2.51fanli.net//tuan//images//e//58101e11ab164.jpg"};

 private  String[] str = new String[10];

private   List stringList = new ArrayList<>();
private  int position=0;

//通过handler来更新ui
    private android.os.Handler  han = new android.os.Handler(){
        @Override
        public void handleMessage(Message msg) {

//找到banner控件id
            banner = (Banner) findViewById(R.id.banner);

//调用方法
            banner.setImageLoader(new bannerGlide());

//添加图片的集合
            banner.setImages(stringList);

//设置延迟时间
            banner.setDelayTime(3000);

//是否自动轮播
            banner.isAutoPlay(true);

//开启
            banner.start();
        }
    };
    @Override
    protected void onCreate(Bundle savedInstanceState) {
       super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

//这个是遍历固定数据的集合
//        for (String s:images) {
//          stringList.add(s);
//        }
        initData();



    }

//解析网络请求的数据
    private void initData() {
        new  Thread(){
            @Override
            public void run() {
                String s = Utils.parmrs(path);
                Gson gson = new Gson();
                Data data = gson.fromJson(s, Data.class);
                List infos = data.getData().getInfos();
                list.addAll(infos);
                for(Data.DataBean.InfosBean aaa:list){
                    List banners = aaa.getBanners();
                    for (Data.DataBean.InfosBean.BannersBean  banner: banners) {
                        stringList.add(banner.getPic());
                        Log.e("-----", "run: "+banner.getPic());
                  }

                }
                han.sendEmptyMessage(0);
//                List banners = infos.get(0).getBanners();
//
            }
        }.start();
    }
//需要继承imageLoader来操作图片的加载
    class  bannerGlide extends ImageLoader{

    @Override
    public void displayImage(Context context, Object path, ImageView imageView) {
        Glide.with(context).load(path)
                .placeholder(R.mipmap.ic_launcher)
                .into(imageView);
    }

< uses-permission android:name = "android.permission.INTERNET" />
 
< uses-permission android:name = "android.permission.READ_EXTERNAL_STORAGE" />