RecyclerView take Image form相机在列表中显示时旋转

// 1. 获取相机拍摄的图片并保存到本地存储或内存中

// 2. 创建自定义的RecyclerView Adapter
public class ImageAdapter extends RecyclerView.Adapter<ImageAdapter.ImageViewHolder> {
    private List<String> imagePaths; // 图片路径列表

    public ImageAdapter(List<String> imagePaths) {
        this.imagePaths = imagePaths;
    }

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

    // 绑定ViewHolder
    @Override
    public void onBindViewHolder(@NonNull ImageViewHolder holder, int position) {
        String imagePath = imagePaths.get(position);
        holder.bindImage(imagePath);
    }

    // 获取列表项数量
    @Override
    public int getItemCount() {
        return imagePaths.size();
    }

    // 自定义ViewHolder
    public static class ImageViewHolder extends RecyclerView.ViewHolder {
        private ImageView imageView;

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

        public void bindImage(String imagePath) {
            // 5. 获取图片旋转角度信息
            int rotation = getRotation(imagePath);

            // 6. 对图片进行旋转操作
            Bitmap rotatedBitmap = rotateImage(imagePath, rotation);

            // 7. 设置旋转后的图片给ImageView展示
            imageView.setImageBitmap(rotatedBitmap);
        }

        private int getRotation(String imagePath) {
            int rotation = 0;
            try {
                ExifInterface exifInterface = new ExifInterface(imagePath);
                int orientation = exifInterface.getAttributeInt(ExifInterface.TAG_ORIENTATION, ExifInterface.ORIENTATION_NORMAL);
                switch (orientation) {
                    case ExifInterface.ORIENTATION_ROTATE_90:
                        rotation = 90;
                        break;
                    case ExifInterface.ORIENTATION_ROTATE_180:
                        rotation = 180;
                        break;
                    case ExifInterface.ORIENTATION_ROTATE_270:
                        rotation = 270;
                        break;
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
            return rotation;
        }

        private Bitmap rotateImage(String imagePath, int rotation) {
            Bitmap bitmap = BitmapFactory.decodeFile(imagePath);
            Matrix matrix = new Matrix();
            matrix.postRotate(rotation);
            return Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), matrix, true);
        }
    }
}