ImageLode infinite carousel

public class MainActivity extends AppCompatActivity {

    private List<String> imgUrls=new ArrayList<>();
    private ViewPager pager;
    private List<ImageView> lists=new ArrayList<>();
    private Handler handler=new Handler(){
        @Override
public void handleMessage(Message msg) {        

            int indexs=pager.getCurrentItem();
            indexs++;
            pager.setCurrentItem(indexs);

            setSelectItem(indexs%imgUrls.size());

        handler .sendEmptyMessageDelayed ( 1 , 1000 );


        }
    };
    private LinearLayout linpotn;


    @Override
protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);    
        setContentView(R.layout.activity_main);
        pager=findViewById(R.id.page);
        linpotn = findViewById(R.id.linpotn);

        MyAdapter adapter=new MyAdapter(this,imgUrls);
        pager.setAdapter(adapter);
        initDate();

        handler .sendEmptyMessageDelayed ( 1 , 1000 );

    }

    private void initDate() {
        imgUrls.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");
        imgUrls.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");
        imgUrls.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");
        imgUrls.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");
        imgUrls.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");
     //Dynamic dot
 for ( int i = 0 ; i < imgUrls .size(); i++) {
        
            ImageView imageView=new ImageView(this);

            if (i==0){
                imageView.setImageResource(R.drawable.point_selected);
            }else{
                imageView.setImageResource(R.drawable.point_mormal);
            }
            linpotn.addView(imageView);
            lists.add(imageView);
        }
    }
    public void setSelectItem(int selectItem) {
        for (int i = 0; i < imgUrls.size(); i++) {
            if (i==selectItem){

                lists.get(i).setImageResource(R.drawable.point_selected);
            }else {
                lists.get(i).setImageResource(R.drawable.point_mormal);

            }


        }




    }

}

//Adapter ================================================= =============================

class MyAdapter extends PagerAdapter{
    private DisplayImageOptions options;
    private Context context;
    private List<String> imgUrls;

    public MyAdapter(Context context, List<String> imgUrls) {
        this.context = context;
        this.imgUrls=imgUrls;
        this.options=new DisplayImageOptions.Builder()
                .cacheInMemory(true)//使用内存缓存
                .cacheOnDisk(true)//使用磁盘缓存
                .showImageOnLoading(R.mipmap.ic_launcher)//设置正在下载的图片
                .showImageForEmptyUri(R.mipmap.ic_launcher)//url为空或请求的资源不存在时
                .showImageOnFail(R.mipmap.ic_launcher)//下载失败时显示的图片
                .bitmapConfig(Bitmap.Config.RGB_565)//设置图片色彩模式  1px=2个字节  ARGB_8888 1px=4个字节   ARGB_4444 1px=2个字节  ALPHA_8 1px=1个字节
                .imageScaleType(ImageScaleType.EXACTLY)//设置图片的缩放模式
                .build();        this.options=new DisplayImageOptions.Builder()
                .cacheInMemory(true)//使用内存缓存
                .cacheOnDisk(true)//使用磁盘缓存
                .showImageOnLoading(R.mipmap.ic_launcher)//设置正在下载的图片
                .showImageForEmptyUri(R.mipmap.ic_launcher)//url为空或请求的资源不存在时
                .showImageOnFail(R.mipmap.ic_launcher)//下载失败时显示的图片
                .bitmapConfig(Bitmap.Config.RGB_565)//设置图片色彩模式  1px=2个字节  ARGB_8888 1px=4个字节   ARGB_4444 1px=2个字节  ALPHA_8 1px=1个字节
                .imageScaleType(ImageScaleType.EXACTLY)//设置图片的缩放模式
                .build();
    }

    @Override
    public int getCount() {
        return Integer.MAX_VALUE;
    }

    @Override
    public boolean isViewFromObject(View view, Object object) {
        return view==object;
    }

    @Override
    public Object instantiateItem(ViewGroup container, int position) {
        ImageView imageView=new ImageView(context);
        imageView.setScaleType(ImageView.ScaleType.FIT_XY);

        ImageLoader.getInstance().displayImage(imgUrls.get(position%imgUrls.size()),imageView,options);
    container.addView(imageView);

        return imageView;
    }

    @Override
    public void destroyItem(ViewGroup container, int position, Object object) {


        container.removeView((View) object);
    }
}