简易轮播图

//要创建App 
//导依赖implementation 'com.youth.banner:banner:1.4.9'
public class Frag2 extends BaseFragment {

    private Banner ban;
    private ArrayList<String> list;

    @Override
    public int bindLayout() {
        return R.layout.frag2;
    }

    @Override
    protected void initView() {
        ban = getActivity().findViewById(R.id.ban);
    }

    @Override
    protected void initData() {
        //第四步:数据(可自拟)
        list = new ArrayList<>();
        list.add("https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1505151721118&di=649c9a43aed72fbc4d99ec1a031510c6&imgtype=0&src=http%3A%2F%2Fimg.zcool.cn%2Fcommunity%2F015c7d574b9f8f6ac72525aee98351.jpg");
        list.add("https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1505151956771&di=0eb6f306991d24b67a13ceb336f80102&imgtype=0&src=http%3A%2F%2Fi0.hdslb.com%2Fbfs%2Farchive%2F00613def3f1beb7a35ae136341be2b589bc46a2d.jpg_320x200.jpg");
        list.add("https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1505151847685&di=c7a4b5d08ec43fa629bcb690039a7629&imgtype=0&src=http%3A%2F%2Fattimg.dospy.com%2Fimg%2Fday_080625%2F20080625_2e91a10c444877e88827vri2ZKdGMvQo.jpg");
        list.add("https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1505151825129&di=70bf74b87d8a15cb91a2d79f15ed0eaf&imgtype=0&src=http%3A%2F%2Fattimg.dospy.com%2Fimg%2Fday_081016%2F20081016_fee215664d5740e56c13E2YB8giERFEX.jpg");
        list.add("https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1505746504&di=930c4d677a02328a142d6fa85ed14580&imgtype=jpg&er=1&src=http%3A%2F%2Fattimg.dospy.com%2Fimg%2Fday_090113%2F20090113_6ac58b42bea94f0b318e1B6BZb5lPZl5.jpg");
        //第五步:设置配置
    }

    @Override
    protected void bindEvent() {
        ban.setImageLoader(new ImageLoader() {
            @Override
            public void displayImage(Context context, Object path, ImageView imageView) {
                DisplayImageOptions options=new DisplayImageOptions.Builder()
                        .cacheInMemory(true)//让图片进行内存缓存
                        .cacheOnDisk(true)//让图片进行sdcard缓存
                        .build();
                com.nostra13.universalimageloader.core.ImageLoader.getInstance().displayImage((String) path,imageView,options);
            }
        });

        ban.setImages(list);//图片数据
        ban.isAutoPlay(true);//是否轮播 true是
        ban.setDelayTime(3000);//图片切换时间
        ban.start();//开始轮播
    }
}