ImageView 多张相片 代码

以下是一个使用 `RecyclerView` 显示多张图片的示例代码：

1. 在 XML 中添加 `RecyclerView`：

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

2. 创建一个 `ImageAdapter` 类来绑定数据和视图：

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

    private List<Integer> mImages;

    public ImageAdapter(List<Integer> images) {
        mImages = images;
    }

    @NonNull
    @Override
    public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_image, parent, false);
        return new ViewHolder(view);
    }

    @Override
    public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
        int imageResId = mImages.get(position);
        holder.imageView.setImageResource(imageResId);
    }

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

    static class ViewHolder extends RecyclerView.ViewHolder {

        ImageView imageView;

        ViewHolder(@NonNull View itemView) {
            super(itemView);
            imageView = itemView.findViewById(R.id.imageView);
        }
    }
}

3. 创建 `item_image.xml` 布局文件：

<ImageView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/imageView"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:adjustViewBounds="true"
    android:scaleType="centerCrop" />

4. 在 Activity 中设置 `RecyclerView` 和 `ImageAdapter`：

public class MainActivity extends AppCompatActivity {

    private RecyclerView mRecyclerView;
    private ImageAdapter mAdapter;

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

        mRecyclerView = findViewById(R.id.recyclerView);
        mRecyclerView.setLayoutManager(new LinearLayoutManager(this));

        List<Integer> images = new ArrayList<>();
        images.add(R.drawable.image1);
        images.add(R.drawable.image2);
        images.add(R.drawable.image3);
        mAdapter = new ImageAdapter(images);
        mRecyclerView.setAdapter(mAdapter);
    }
}

注意，上面的代码中，`R.drawable.image1`、`R.drawable.image2`、`R.drawable.image3` 都是指定的图片资源的 ID，需要在项目中添加这些图片资源。