XiangLian/app/src/main/java/com/hdl/xl/ui/adapter/ImageAdapter.java

package com.hdl.xl.ui.adapter;

import android.view.ViewGroup;
import android.widget.ImageView;
import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;
import com.bumptech.glide.Glide;
import com.hdl.xl.bean.BannerBean;
import com.youth.banner.adapter.BannerAdapter;
import java.util.List;

/**
 * 自定义布局，下面是常见的图片样式，更多实现可以看demo，可以自己随意发挥
 */
public class ImageAdapter extends BannerAdapter<BannerBean, ImageAdapter.BannerViewHolder> {
    public ImageAdapter(List<BannerBean> mDatas) {
        //设置数据，也可以调用banner提供的方法,或者自己在adapter中实现
        super(mDatas);
    }

    //创建ViewHolder，可以用viewType这个字段来区分不同的ViewHolder
    @Override
    public BannerViewHolder onCreateHolder(ViewGroup parent, int viewType) {
        ImageView imageView = new ImageView(parent.getContext());
        //注意，必须设置为match_parent，这个是viewpager2强制要求的
        imageView.setLayoutParams(new ViewGroup.LayoutParams(
                ViewGroup.LayoutParams.MATCH_PARENT,
                ViewGroup.LayoutParams.MATCH_PARENT));
        imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
        return new BannerViewHolder(imageView);
    }

    @Override
    public void onBindViewHolder(@NonNull BannerViewHolder holder, int position, @NonNull List<Object> payloads) {
        super.onBindViewHolder(holder, position, payloads);
    }

    @Override
    public void onBindView(BannerViewHolder holder, BannerBean data, int position, int size) {
        Glide.with(holder.imageView.getContext()).load(data.getCover()).into(holder.imageView);
    }

    class BannerViewHolder extends RecyclerView.ViewHolder {
        ImageView imageView;

        public BannerViewHolder(@NonNull ImageView view) {
            super(view);
            this.imageView = view;
        }
    }
}