android RecyclerView初步使用:

RecyclerView初步使用:

MainActivity:

    RecyclerView recyclerView;
    List<String> data = new ArrayList();
    RecyclerviewAdapter adapter = new RecyclerviewAdapter(this,data);

    
        recyclerView = (RecyclerView) findViewById(R.id.rv);

        LinearLayoutManager layoutManager = new LinearLayoutManager(this );

        recyclerView.setLayoutManager(layoutManager);

        recyclerView.setAdapter(adapter);
        data.add(data.size(),numx+"[DIR]" + filexx.get(k));//添加 位置,数据
        adapter.notifyItemInserted(data.size());//添加 位置

RecyclerviewAdapter.java

适配器

import android.content.Context;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

import java.util.List;

import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;

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

    private Context context;
    private List<String> data;

    public RecyclerviewAdapter(Context context,List<String> data){
        this.context = context;
        this.data = data;

    }

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

    @Override
    public void onBindViewHolder(@NonNull ViewHolder holder, final int position) {
        holder.name.setText(data.get(position));

//        holder.itemView.setOnClickListener(new View.OnClickListener() {
        holder.name.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Log.e("这里是点击每一行item的响应事件",""+position+"item");
            }
        });

    }

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


    public class ViewHolder extends RecyclerView.ViewHolder{

        private TextView name;

        public ViewHolder(View itemView) {
            super(itemView);
            name = itemView.findViewById(R.id.name);

        }
    }
}