Android RecyclerView及适配器简单使用

1.如果还没添加依赖包，则添加依赖包

implementation 'com.android.support:recyclerview-v7:27.1.0'

2.新建一个RecyclerViewAdapter

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() {
@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);

}
}
}

3.在Activity中加载RecyclerView

RecyclerviewAdapter adapter = new RecyclerviewAdapter(this,data);
recyclerView.setLayoutManager(new LinearLayoutManager(this));
recyclerView.setAdapter(adapter);

recyclerView.setLayoutManager(new LinearLayoutManager(this));要给recyclerview设置布局管理器，否则不显示内容