如何将数据从适配器 class 传递到底部工作表对话框片段

Question

我的片段中有一个回收器视图，每个回收器视图行项目都有一个按钮，因此当用户单击一个按钮时，它应该打开BottomSheetDialogFragment ，并且该特定行项目的详细信息应该在 BottomSheetDialogFragment 中可见。

到目前为止，我所做的对话框片段在单击按钮时正确显示，但我不知道如何将数据从适配器 class 传递给对话框片段。

下面是我的代码：

FactsAdapter.java

public class FactsAdapter extends RecyclerView.Adapter<FactsAdapter.ViewHolder> {

List<Facts> factList;
Context context;

public FactsAdapter(List<Facts> factList, Context context) {
    this.factList = factList;
    this.context = context;
}

@NonNull
@Override
public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {

    View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.facts_row,parent,false);

    return new ViewHolder(view);
}

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

    final Facts model = factList.get(position);

    final String str1 = model.getDescription();

    RequestOptions requestOptions = new RequestOptions();
    requestOptions.placeholder(R.color.place);

    holder.title.setText(model.getTitle());

    Glide.with(context).load(model.getImage()).apply(requestOptions).into(holder.factImage);

    holder.more.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v){ 
           
            BottomSheet bottomSheet = new BottomSheet();
            bottomSheet.show(((FragmentActivity) context).getSupportFragmentManager(),bottomSheet.getTag());
        }
    });

}

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

public class ViewHolder extends RecyclerView.ViewHolder {

    ImageView factImage;
    TextView title;
    Button more;

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

       factImage = itemView.findViewById(R.id.factImage);
       title = itemView.findViewById(R.id.title);
       more = itemView.findViewById(R.id.more);
      }
    }
}

有人请让我知道如何将数据传递给对话框片段，任何帮助将不胜感激。

谢谢

Answer 1

测试一下

适配器：

Bundle args = new Bundle();
args.putString("key", "value");
BottomSheet bottomSheet = new BottomSheet();  
bottomSheet .setArguments(args);
bottomSheet .show(((FragmentActivity) context).getSupportFragmentManager(),bottomSheet.getTag());

底部片断：

Bundle mArgs = getArguments();
String myValue = mArgs.getString("key");

Answer 2

如果我猜对了，您可以尝试制作一个界面：

public interface DataTransferInterface {
     public void onSetValues(ArrayList<?> al);
}

然后在您的 Fragment/Activity/BottomSheetDialogFragment 中实现此接口并将其作为侦听器传递给适配器的构造函数：

@Override
public void onSetValues(List<Fact> list) {
   if (list.size() < 1) {
       txtEmptyAdapter.setVisibility(View.VISIBLE);
   }
}
        
public FactsAdapter(List<Facts> factList, Context context, DataTransferInterface listener) {
    this.factList = factList;
    this.context = context;
    this.listener = listener;
}

现在很容易在任何需要的地方调用这个监听器，并在 Fragment/Activity/BottomSheetDialogFragment 中获取所需的数据，如下所示：

listener.onSetValues(factList);