如何通过单击每个项目中的复选框滚动到下一个项目（recyclerview）

Question

请原谅我的英语。

我的列表包含 100 个项目。每个项目都包含两个复选框，每次单击复选框时我都想滚动到下一个项目。

请给我最好的答案link如果这个问题已经有人回答了

这是我的自定义适配器

 public class CustomAdapter extends 
       RecyclerView.Adapter<CustomAdapter.MyViewHolder> {

private ArrayList answerFirst;
private ArrayList answerSecond;
private Context context;

public CustomAdapter(Context  context, ArrayList questionList, ArrayList 
answerFirst, ArrayList answerSecond) {
    this.context = context;
    this.answerFirst = answerFirst;
    this.answerSecond = answerSecond;
}

@Override
public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View v = 
    LayoutInflater.from(parent.getContext()).inflate(R.layout.test_items, 
    parent, false);
    return new MyViewHolder(v);
}

@Override
public void onBindViewHolder(final MyViewHolder holder, final int position) 
    {

        holder.firstanswer.setText(answerFirst.get(position).toString());
        holder.secondanswer.setText(answerSecond.get(position).toString());
    }

@Override
public int getItemCount() {
    return questionList.size();
}

public class MyViewHolder extends RecyclerView.ViewHolder {
    TextView question;
    CheckBox firstanswer;
    CheckBox secondanswer;
    public MyViewHolder(View itemView) {
        super(itemView);
        question = (TextView) itemView.findViewById(R.id.question_text);
        firstanswer = (CheckBox) itemView.findViewById(R.id.first_answer);
        secondanswer = (CheckBox) itemView.findViewById(R.id.second_answer);
             }
        }
   }

这是主要的activity

 @Override
 protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_start_test);

    final RecyclerView recyclerView = (RecyclerView) 
    findViewById(R.id.recyclerView_test);
    final LinearLayoutManager linearLayoutManager = new LinearLayoutManager(getApplicationContext());
    recyclerView.setLayoutManager(linearLayoutManager); 

    final CustomAdapter customAdapter = new CustomAdapter(mainActivity.this, answerFirst,answerSecond);
    recyclerView.setAdapter(customAdapter);
}

Answer 1

您可以通过在主 class 中使适配器 class 并在复选框的侦听器方法中滚动到所需位置来做到这一点，因为 RecyclerView 是一个全局变量，您可以访问它并且滚动到所需位置。

rv.scrollToPosition(youPositionInTheAdapter)

否则在构造函数中传递 RecyclerView 的实例并执行相同的操作

并通过 getAdapterPosition()

获取适配器内的当前项目位置

或者您可以像这样使用布局管理器来完成

rv.getLayoutManager().scrollToPosition(youPositionInTheAdapter)

如何通过单击每个项目中的复选框滚动到下一个项目（recyclerview）

how to scroll to next item by clicking on a checkbox in each item (recyclerview)

android

custom-adapter

android-viewholder

android-recyclerview