如何将对话框中的用户输入作为项目保存到RecyclerView中？

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

// 弹出对话框获取用户输入
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("输入对话框");
final EditText editText = new EditText(this);
builder.setView(editText);
builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {
    @Override
    public void onClick(DialogInterface dialog, int which) {
        // 获取用户输入的数据
        String userInput = editText.getText().toString();
        
        // 创建数据模型对象
        DataModel dataModel = new DataModel(userInput);
        
        // 将数据模型对象添加到数据集
        dataList.add(dataModel);
        
        // 通知适配器数据集发生变化
        adapter.notifyDataSetChanged();
    }
});
builder.setNegativeButton("取消", null);
builder.show();