android 中的动态列表首选项

Android中的动态列表首选项

    android:id="@+id/recyclerView"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    />

List dataList = new ArrayList<>();
dataList.add("选项1");
dataList.add("选项2");
dataList.add("选项3");

public class MyAdapter extends RecyclerView.Adapter {
    private List mDataList;
    public MyAdapter(List dataList) {
        mDataList = dataList;
    }
    @Override
    public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_layout, parent, false);
        return new ViewHolder(view);
    }
    @Override
    public void onBindViewHolder(ViewHolder holder, int position) {
        String itemData = mDataList.get(position);
        holder.textView.setText(itemData);
    }
    @Override
    public int getItemCount() {
        return mDataList.size();
    }
    public static class ViewHolder extends RecyclerView.ViewHolder {
        public TextView textView;
        public ViewHolder(View itemView) {
            super(itemView);
            textView = itemView.findViewById(R.id.textView);
        }
    }
}

RecyclerView recyclerView = findViewById(R.id.recyclerView);
recyclerView.setLayoutManager(new LinearLayoutManager(this));
recyclerView.setAdapter(new MyAdapter(dataList));