feat: 优化 AI 修图模板选择页面

suixinkan/UI/TravelAlbum/TravelAlbumAIRetouchTemplateViewController.swift

@@ -583,6 +583,7 @@ final class TravelAlbumAIRetouchTemplateCell: UICollectionViewCell {
         previewImageView.contentMode = .scaleAspectFill
         previewImageView.clipsToBounds = true
         previewImageView.backgroundColor = UIColor(hex: 0xEDF2F8)
+        previewImageView.accessibilityIdentifier = "travelAlbum.aiRetouchTemplateImage"
         nameLabel.font = .systemFont(ofSize: 13, weight: .semibold)
         nameLabel.textColor = AIRetouchTemplateStyle.textPrimary
         nameLabel.textAlignment = .center
@@ -595,12 +596,12 @@ final class TravelAlbumAIRetouchTemplateCell: UICollectionViewCell {
         previewConfiguration.title = "预览"
         previewConfiguration.baseForegroundColor = .white
         previewConfiguration.baseBackgroundColor = UIColor.black.withAlphaComponent(0.58)
-        previewConfiguration.background.cornerRadius = 15
+        previewConfiguration.background.cornerRadius = 14
         previewConfiguration.contentInsets = .zero
         previewConfiguration.titleTextAttributesTransformer = UIConfigurationTextAttributesTransformer {
             attributes in
             var attributes = attributes
-            attributes.font = .systemFont(ofSize: 13, weight: .regular)
+            attributes.font = .systemFont(ofSize: 12, weight: .regular)
             return attributes
         }
         previewButton.configuration = previewConfiguration
@@ -625,9 +626,9 @@ final class TravelAlbumAIRetouchTemplateCell: UICollectionViewCell {
             make.size.equalTo(22)
         }
         previewButton.snp.makeConstraints { make in
-            make.trailing.bottom.equalTo(previewImageView).inset(7)
-            make.width.equalTo(54)
-            make.height.equalTo(30)
+            make.trailing.bottom.equalTo(previewImageView).inset(4)
+            make.width.equalTo(48)
+            make.height.equalTo(28)
         }
     }
 
@@ -646,19 +647,16 @@ final class TravelAlbumAIRetouchTemplateCell: UICollectionViewCell {
     /// 更新模板内容与选中状态。
     func apply(template: TravelAlbumAIRetouchTemplate, selected: Bool) {
         nameLabel.text = template.name
+        let placeholder = UIImage(named: "ai_retouch_template_placeholder")
         if let url = URL(string: template.previewURL), !template.previewURL.isEmpty {
             previewImageView.contentMode = .scaleAspectFill
             previewImageView.kf.setImage(
                 with: url,
-                placeholder: UIImage(systemName: "photo")?.withTintColor(
-                    AIRetouchTemplateStyle.textSecondary,
-                    renderingMode: .alwaysOriginal
-                )
+                placeholder: placeholder
             )
         } else {
-            previewImageView.image = UIImage(systemName: "photo")
-            previewImageView.tintColor = AIRetouchTemplateStyle.textSecondary
-            previewImageView.contentMode = .scaleAspectFit
+            previewImageView.image = placeholder
+            previewImageView.contentMode = .scaleAspectFill
         }
         contentView.layer.borderColor = (
             selected ? AIRetouchTemplateStyle.primary : AIRetouchTemplateStyle.border
@@ -680,7 +678,7 @@ final class TravelAlbumAIRetouchTemplateCell: UICollectionViewCell {
 /// 扩大模板预览按钮的触摸区域，同时保持截图中的胶囊尺寸。
 private final class AIRetouchTemplatePreviewButton: UIButton {
     override func point(inside point: CGPoint, with event: UIEvent?) -> Bool {
-        bounds.insetBy(dx: -6, dy: -6).contains(point)
+        bounds.insetBy(dx: -8, dy: -8).contains(point)
     }
 }
 
@@ -1009,17 +1007,14 @@ final class TravelAlbumAIRetouchTemplatePreviewViewController: UIViewController
     }
 
     private func loadPreview() {
+        let placeholder = UIImage(named: "ai_retouch_template_placeholder")
         guard let url = URL(string: template.previewURL), !template.previewURL.isEmpty else {
-            imageView.image = UIImage(systemName: "photo")
-            imageView.tintColor = UIColor.white.withAlphaComponent(0.45)
+            imageView.image = placeholder
             return
         }
         imageView.kf.setImage(
             with: url,
-            placeholder: UIImage(systemName: "photo")?.withTintColor(
-                UIColor.white.withAlphaComponent(0.45),
-                renderingMode: .alwaysOriginal
-            )
+            placeholder: placeholder
         )
     }