Banner实现无限轮播

布局

<?  version=\"1.0\" encoding=\"utf-8\"?>
<android.support.constraint.ConstraintLayout  ns:android=\"http://schemas.android.com/apk/res/android\"
     ns:app=\"http://schemas.android.com/apk/res-auto\"
     ns:tools=\"http://schemas.android.com/tools\"
    android:layout_width=\"match_parent\"
    android:layout_height=\"match_parent\"
    tools:context=\".MainActivity\">
    <com.youth.banner.Banner
        android:id=\"@+id/banner\"
        android:layout_width=\"match_parent\"
        android:layout_height=\"match_parent\"></com.youth.banner.Banner>

</android.support.constraint.ConstraintLayout>

java代码

package com.example.kanghuwei20181219;

import android.content.Context;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.ImageView;

import com.nostra13.universalimageloader.core.ImageLoader;
import com.youth.banner.Banner;

import java.util.ArrayList;
import java.util.Arrays;
/* *
 * @Data: 2018/12/19 15:20
 * @Author: 橘子有点甜丶
 * @Params: 
 * @File_name: MainActivity.java
 * */
public class MainActivity extends AppCompatActivity {
    private   String[] urls = {\"http://img.my.csdn.net/uploads/201407/26/1406383265_8550.jpg\",
            \"https://lh4.googleusercontent.com/--dq8niRp7W4/URquVgmXvgI/AAAAAAAAAbs/-gnuLQfNnBA/s160-c/A%252520Song%252520of%252520Ice%252520and%252520Fire.jpg\",
            \"https://lh5.googleusercontent.com/-7qZeDtRKFKc/URquWZT1gOI/AAAAAAAAAbs/hqWgteyNXsg/s160-c/Another%252520Rockaway%252520Sunset.jpg\",
            \"http://img.my.csdn.net/uploads/201407/26/1406383265_8550.jpg\",
            \"https://lh6.googleusercontent.com/-8HO-4vIFnlw/URquZnsFgtI/AAAAAAAAAbs/WT8jViTF7vw/s160-c/Antelope%252520Hallway.jpg\",
            \"https://lh4.googleusercontent.com/-WIuWgVcU3Qw/URqubRVcj4I/AAAAAAAAAbs/YvbwgGjwdIQ/s160-c/Antelope%252520Walls.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();
        /* *
         * 给banner添加显示图片的框架
         * 可以给imageloader,glide,fressro
         * */
        banner.setImageLoader(new com.youth.banner.loader.ImageLoader() {
            @Override
            public void displayImage(Context context,   path, ImageView imageView) {
                instance.displayImage((String) path,imageView);
            }
        });
        banner.setImages(Arrays.asList(urls));
        banner.start();
    }
}