fix(album): prevent black screen when switching preview variants

suixinkan/UI/TravelAlbum/TravelAlbumPhotoPreviewViewController.swift

@@ -639,11 +639,6 @@ private final class TravelAlbumPreviewImageCell: UICollectionViewCell, UIScrollV
         resetZoom()
     }
 
-    override func layoutSubviews() {
-        super.layoutSubviews()
-        imageView.frame = scrollView.bounds
-    }
-
     func apply(asset newAsset: TravelAlbumPreviewAsset?) {
         asset = newAsset
         resetZoom()
@@ -687,6 +682,7 @@ private final class TravelAlbumPreviewImageCell: UICollectionViewCell, UIScrollV
         imageView.contentMode = .scaleAspectFit
         imageView.backgroundColor = .black
         imageView.kf.indicatorType = .activity
+        imageView.accessibilityIdentifier = "travelAlbum.previewImageView"
 
         retryButton.setTitle("图片加载失败，点击重试", for: .normal)
         retryButton.setTitleColor(UIColor.white.withAlphaComponent(0.82), for: .normal)
@@ -699,6 +695,11 @@ private final class TravelAlbumPreviewImageCell: UICollectionViewCell, UIScrollV
         scrollView.addSubview(imageView)
         contentView.addSubview(retryButton)
         scrollView.snp.makeConstraints { $0.edges.equalToSuperview() }
+        imageView.snp.makeConstraints { make in
+            make.edges.equalTo(scrollView.contentLayoutGuide)
+            make.width.equalTo(scrollView.frameLayoutGuide)
+            make.height.equalTo(scrollView.frameLayoutGuide)
+        }
         retryButton.snp.makeConstraints { $0.center.equalToSuperview() }
 
         let singleTap = UITapGestureRecognizer(target: self, action: #selector(singleTapped))