banner 网络轮播

依赖

implementation 'com.youth.banner:banner:1.4.9'

外部类image-loader

在这里插入代码片

public class Net_ImageLoader extends Application {
@Override
public void onCreate() {
super.onCreate();
ImageLoaderConfiguration build = new ImageLoaderConfiguration.Builder(this).build();
ImageLoader instance = ImageLoader.getInstance();
instance.init(build);
}
}

public class MainActivity extends AppCompatActivity {
    String[] urls = {"https://img-my.youkuaiyun.com/uploads/201407/26/1406383265_8550.jpg",
            "http://img2.91.com/uploads/allimg/140331/32-1403311A009.jpg",
            "http://img1.imgtn.bdimg.com/it/u=3055632223,2826867768&fm=214&gp=0.jpg",
            "http://img.article.pchome.net/00/28/41/62/pic_lib/wm/hlfjkpbz_17.jpg",
            "http://img0.imgtn.bdimg.com/it/u=2631448432,2817427988&fm=214&gp=0.jpg",
            "http://img.ichemo.cn/model/5188ebc96c74dd.jpg"
    };
    private Banner banner;

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

        banner = findViewById(R.id.banner);

        final ImageLoader instance = ImageLoader.getInstance();

        banner.setImageLoader(new com.youth.banner.loader.ImageLoader() {
            @Override
            public void displayImage(Context context, Object path, ImageView imageView) {

                instance.displayImage((String) path,imageView);
            }
        });
            banner.setImages(Arrays.asList(urls));
            banner.start();
    }
}