RecyclerView的简单使用

最新推荐文章于 2023-08-07 10:29:42 发布

原创最新推荐文章于 2023-08-07 10:29:42 发布 · 111 阅读

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本文介绍了一个具体的RecyclerView适配器实现案例，展示了如何通过自定义适配器来为RecyclerView加载数据，并实现条目的点击事件监听。

//给RecyclerView设置适配器
RvClassAdapter rvClassAdapter = new RvClassAdapter(getContext(), data);
rvClass.setAdapter(rvClassAdapter);

适配器里面

public class RvClassAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {

private Context context;
private List<CatagoryBean.DataBean> list;
private LayoutInflater inflater;
private OnItemClickListener onItemClickListener;

public RvClassAdapter(Context context, List<CatagoryBean.DataBean> list) {
this.context = context;
this.list = list;
inflater = LayoutInflater.from(context);
}

public void setOnItemClickListener(OnItemClickListener onItemClickListener) {
this.onItemClickListener = onItemClickListener;
}

@NonNull
@Override
public RecyclerView.ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
View view = inflater.inflate(R.layout.rvclass_item, parent, false);
ClassViewHoler classViewHoler = new ClassViewHoler(view);
return classViewHoler;
}

@Override
public void onBindViewHolder(@NonNull RecyclerView.ViewHolder holder, final int position) {
//显示数据
ClassViewHoler classViewHoler = (ClassViewHoler) holder;
CatagoryBean.DataBean dataBean = list.get(position);
Glide.with(context).load(dataBean.getIcon()).into(classViewHoler.iv);
classViewHoler.tv.setText(dataBean.getName());

//给条目设置点击事件
classViewHoler.ll.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (onItemClickListener != null) {
onItemClickListener.onItemClick(position);
}
}
});
}

@Override
public int getItemCount() {
return list.size();
}

class ClassViewHoler extends RecyclerView.ViewHolder {

private final ImageView iv;
private final TextView tv;
private final LinearLayout ll;

public ClassViewHoler(View itemView) {
super(itemView);
iv = itemView.findViewById(R.id.iv);
tv = itemView.findViewById(R.id.tv);
ll = itemView.findViewById(R.id.ll);
}
}
}