RecyclerView简单使用_mingrecyclerview-优快云博客

本文链接：https://blog.youkuaiyun.com/huangmingcsdn/article/details/105559091

本文详细介绍了如何在Android应用中使用RecyclerView，包括在build.gradle中引入依赖、XML布局文件配置、创建自定义Adapter、设置LayoutManager和调用setAdapter方法。通过实例演示了如何显示字符串数组的数据。

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implementation ‘androidx.recyclerview:recyclerview:1.0.0’
xml使用

	<androidx.recyclerview.widget.RecyclerView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/rv"/>

重写RecyclerView.Adapter

public class MyAdapter extends RecyclerView.Adapter<MyAdapter.ViewHolder> {
    private Context context;
    String str = {1,2,3};
    public MyAdapter(Context context) {
        this.context = context;
    }

    @NonNull
    @Override
    public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(context).inflate(R.layout.mrv,parent,false);
        return new ViewHolder(view);
    }

    @Override
    public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
        holder.textView.setText(str[position]);
    }

    @Override
    public int getItemCount() {
        return str.length;
    }

    static class ViewHolder extends  RecyclerView.ViewHolder{
        TextView textView ;
        ViewHolder(View view){
            super(view);
            textView = view.findViewById(R.id.mrv_tv);
        }
    }
}`

Activity中适配

		LinearLayoutManager linearLayoutManager = new LinearLayoutManager(this);
        linearLayoutManager.setOrientation(RecyclerView.VERTICAL);
        RecyclerView recyclerView = findViewById(R.id.rv);
        recyclerView.setHasFixedSize(true);
        recyclerView.setLayoutManager(linearLayoutManager);
        recyclerView.setAdapter(new MyAdapter(this));