轮播图

主布局

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <cn.bingoogolapple.bgabanner.BGABanner
        android:id="@+id/banner"
        android:layout_width="match_parent"
        android:layout_height="200dp"
        />

</LinearLayout>

主页面

public class MainActivity extends AppCompatActivity {
    //定义两个数组
    private String[] url = {
            "https://img.huxiucdn.com/article/cover/201804/11/142701198959.jpg?imageView2/1/w/710/h/400/|imageMogr2/strip/interlace/1/quality/85/format/jpg",
            "https://img.huxiucdn.com/article/cover/201809/10/195039242422.jpg?imageView2/1/w/710/h/400/|imageMogr2/strip/interlace/1/quality/85/format/jpg",
            "https://img.huxiucdn.com/article/cover/201809/10/143541089263.jpg?imageView2/1/w/710/h/400/|imageMogr2/strip/interlace/1/quality/85/format/jpg"
    };
    private String[] title = {
            "资讯拼多多？趣头条不值得高估",
            "马云接班人为什么是张勇",
            "《天天德州》终下架：面对**灰产，腾讯也无能为力"
    };
    private BGABanner banner;
    private List<String> urllist;
    private List<String> titlelist;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        banner = findViewById(R.id.banner);
        urllist = new ArrayList<>();
        titlelist = new ArrayList<>();
        //将数组放入集合中
        for(int i=0;i<url.length;i++){
            urllist.add(url[i]);
            titlelist.add(title[i]);
        }
        //给banner设置数据
        banner.setData(urllist,titlelist);
        BGABanner.Adapter<ImageView, String> adapter = new BGABanner.Adapter<ImageView, String>() {

            @Override
            public void fillBannerItem(BGABanner banner, ImageView itemView, String model, int position) {
                Picasso.get().load(urllist.get(position)).into(itemView);
            }
        };
        banner.setAdapter(adapter);
    }
}