package?com.example.imoocmusic;

import?android.content.Context;
import?android.view.LayoutInflater;
import?android.view.View;
import?android.view.ViewGroup;

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

public?class?ListAdapter?extends?RecyclerView.Adapter?<RecyclerView.ViewHolder>{

????private?Context?mContext;

????public?ListAdapter(Context?context){
????????mContext=context;
????}

????@NonNull
????@Override
????public?RecyclerView.ViewHolder?onCreateViewHolder(@NonNull?ViewGroup?parent,?int?viewType)?{
????????return?new?ViewHolder(LayoutInflater.from(mContext).inflate(R.layout.item_music_list,parent,false));
????}

????@Override
????public?void?onBindViewHolder(@NonNull?RecyclerView.ViewHolder?holder,?int?position)?{

????}

????@Override
????public?int?getItemCount()?{
????????return?8;
????}

????class?ViewHolder?extends?RecyclerView.ViewHolder{

????????public?ViewHolder(@NonNull?View?itemView)?{
????????????super(itemView);
????????}
????}
}

你確定真的是和視頻里一樣的代碼嗎？建議再看一遍視頻可能有小問題。（比如哪里忘了加）