java - 如何修复RecyclerView OnClick间隙显示bug？

Question

我正在设置一个包含多个 ImageButtons 的 RecyclerView，每个 ImageButton 都有一个 OnClick 操作(启动 Activity)我的问题是，OnClick 操作不适用于 ImageButtons，但在每个 ImageButton 之间有一点空间(如果我想单击第一个按钮，我必须单击第一个和第二个按钮之间的空间)

我尝试过更改图像大小

RecyclerView 适配器:

   public class RecyclerViewAdapter extends RecyclerView.Adapter<RecyclerViewAdapter.ViewHolder>
    @Override
    public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View view = mInflater.inflate(R.layout.recycler_view, parent, false);
        return new ViewHolder(view);
    }

    // binds the data to the ImageButton in each row
    @Override
    public void onBindViewHolder(ViewHolder holder, int position) {
        int currentCategory = mData.get(position).getImage();
        holder.categoriesButton.setImageResource(currentCategory);
    }

    // stores and recycles views as they are scrolled off screen
    public class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
        ImageButton categoriesButton;

        ViewHolder(View itemView) {
            super(itemView);
            categoriesButton = itemView.findViewById(R.id.image_Button_Category_id);
            itemView.setOnClickListener(this);
        }

        @Override
        public void onClick(View view) {
            if (mClickListener != null) mClickListener.onItemClick(view, getAdapterPosition());
        }
    }

    // convenience method for getting data at click position
    public int getItem(int id) {
        return mData.get(id).getImage();
    }

    // allows clicks events to be caught
    public void setClickListener(ItemClickListener itemClickListener) {
        this.mClickListener = itemClickListener;
    }

    // parent activity will implement this method to respond to click events
    public interface ItemClickListener {
        void onItemClick(View view, int position);
    }

回收器布局:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android" 
android:layout_width="match_parent"
android:layout_height="match_parent">
  <ImageButton
    android:id="@+id/image_Button_Category_id"
    android:layout_width="match_parent"
    android:layout_height="wrap_content" />

这是在我的 MainActivity 中:

  private void setRecyclerViewOn(ArrayList<Category> list) {
    RecyclerView recyclerView = findViewById(R.id.recyclerView_id);
    recyclerView.setLayoutManager(new LinearLayoutManager(this));
    adapter = new RecyclerViewAdapter(this, list);
    adapter.setClickListener(this);
    recyclerView.setAdapter(adapter);
}

@Override
public void onItemClick(View view, int position) {
    Toast.makeText(this, "You clicked " + adapter.getItem(position) + " on row number " + position, Toast.LENGTH_SHORT).show();
    startActivity(createIntent(position));
}

预期结果:点击监听器必须位于每个 ImageButton 上

Answer 1

尝试在 onBindView() 上添加点击监听器

@Override
    public void onBindViewHolder(ViewHolder holder, int position) {
        int currentCategory = mData.get(position).getImage();
        holder.categoriesButton.setImageResource(currentCategory);
        holder.vategoriesButton.setOnClickListener(...)
    }