android 9-列表视图行向左移动

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

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

public class MyAdapter extends RecyclerView.Adapter<MyAdapter.MyViewHolder> {
    // 数据集合
    private List<String> data;

    public MyAdapter(List<String> data) {
        this.data = data;
    }

    @Override
    public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        // 创建ViewHolder
        View itemView = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_layout, parent, false);
        return new MyViewHolder(itemView);
    }

    @Override
    public void onBindViewHolder(MyViewHolder holder, int position) {
        // 绑定数据到ViewHolder
        holder.textView.setText(data.get(position));
    }

    @Override
    public int getItemCount() {
        // 返回数据集合的大小
        return data.size();
    }

    public static class MyViewHolder extends RecyclerView.ViewHolder {
        TextView textView;

        public MyViewHolder(View itemView) {
            super(itemView);
            // 获取视图组件
            textView = itemView.findViewById(R.id.textView);
        }
    }
}

<TextView
    android:id="@+id/textView"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:textSize="16sp"
    android:padding="16dp"
    />

RecyclerView.LayoutManager layoutManager = new LinearLayoutManager(this);
recyclerView.setLayoutManager(layoutManager);
recyclerView.setAdapter(new MyAdapter(data));