feat(media): 图片占位改为纯色块并去掉扫光

lib/pages/discover/widgets/feed_banner_carousel.dart

@@ -176,7 +176,7 @@ class _FeedBannerCarouselState extends State<FeedBannerCarousel> {
       child: Stack(
         fit: StackFit.expand,
         children: [
-          RemoteImage(banner.imageUrl, showFallbackIcon: true),
+          RemoteImage(banner.imageUrl),
           DecoratedBox(
             decoration: BoxDecoration(
               gradient: LinearGradient(

lib/pages/discover/widgets/search_result_card.dart

@@ -37,7 +37,6 @@ class SearchResultCard extends StatelessWidget {
                     RemoteImage(
                       drama.posterUrl,
                       fit: BoxFit.cover,
-                      showFallbackIcon: true,
                       fallbackColor: AppColors.contentSurface,
                     ),
                     const Positioned(
@@ -60,7 +59,9 @@ class SearchResultCard extends StatelessWidget {
             ),
             const SizedBox(height: AppDimens.searchResultTitleGap),
             Text(
-              drama.localizedTitle(Localizations.localeOf(context).languageCode),
+              drama.localizedTitle(
+                Localizations.localeOf(context).languageCode,
+              ),
               key: Key('search-result-title-${drama.id}'),
               maxLines: 2,
               overflow: TextOverflow.ellipsis,
@@ -93,7 +94,9 @@ class SearchResultCard extends StatelessWidget {
   }
 
   List<String> _tags(BuildContext context) {
-    final localized = drama.localizedTypeLabels(Localizations.localeOf(context).languageCode);
+    final localized = drama.localizedTypeLabels(
+      Localizations.localeOf(context).languageCode,
+    );
     if (localized.isNotEmpty) return localized.take(3).toList(growable: false);
     final seen = <String>{};
     return [drama.genre, drama.category]

lib/pages/drama_detail/widgets/drama_detail_header.dart

@@ -126,7 +126,6 @@ class DramaDetailHeader extends StatelessWidget {
             child: RemoteImage(
               drama.posterUrl,
               fit: BoxFit.cover,
-              showFallbackIcon: true,
               fallbackAspectRatio: 3 / 4,
             ),
           ),

lib/pages/filter/widgets/filter_result_card.dart

@@ -53,7 +53,6 @@ class FilterResultCard extends StatelessWidget {
                   RemoteImage(
                     drama.posterUrl,
                     fit: BoxFit.cover,
-                    showFallbackIcon: true,
                     fallbackAspectRatio: 3 / 4,
                   ),
                   if (drama.isHot)

lib/pages/following/following_grid_card.dart

@@ -64,7 +64,6 @@ class FollowingGridCard extends StatelessWidget {
                     child: RemoteImage(
                       posterUrl,
                       fit: BoxFit.cover,
-                      showFallbackIcon: true,
                       fallbackColor: AppColors.contentSurface,
                     ),
                   ),

lib/pages/following/following_history_card.dart

@@ -75,7 +75,6 @@ class FollowingHistoryCard extends StatelessWidget {
               child: RemoteImage(
                 posterUrl,
                 fit: BoxFit.cover,
-                showFallbackIcon: true,
                 fallbackColor: AppColors.contentSurface,
               ),
             ),

lib/pages/following/widgets/continue_watching_banner.dart

@@ -40,7 +40,6 @@ class ContinueWatchingBanner extends StatelessWidget {
             RemoteImage(
               record.displayLandscapeCover,
               fit: BoxFit.cover,
-              showFallbackIcon: true,
               fallbackColor: AppColors.contentSurface,
             ),
             const DecoratedBox(

lib/pages/home/widgets/home_drama_grid.dart

@@ -122,7 +122,6 @@ class HomeDramaCard extends StatelessWidget {
             drama.posterUrl,
             width: double.infinity,
             fit: BoxFit.fitWidth,
-            showFallbackIcon: true,
             fallbackAspectRatio: _coverAspectRatio,
           ),
           Positioned(top: 8, left: 8, child: _tagBadge()),
@@ -226,7 +225,9 @@ class HomeDramaCard extends StatelessWidget {
   }
 
   Widget _genre(BuildContext context) {
-    final labels = drama.localizedTypeLabels(Localizations.localeOf(context).languageCode);
+    final labels = drama.localizedTypeLabels(
+      Localizations.localeOf(context).languageCode,
+    );
     final genre = labels.isEmpty
         ? (drama.genre.isEmpty ? drama.category : drama.genre)
         : labels.join(' / ');

lib/pages/home/widgets/home_feed_card.dart

@@ -12,11 +12,7 @@ import '../../../core/widgets/remote_image.dart';
 final RegExp _tagSplitter = RegExp(r'[,/、·]');
 
 class HomeFeedCard extends StatelessWidget {
-  const HomeFeedCard({
-    super.key,
-    required this.drama,
-    required this.onTap,
-  });
+  const HomeFeedCard({super.key, required this.drama, required this.onTap});
 
   final Drama drama;
   final VoidCallback onTap;
@@ -44,7 +40,9 @@ class HomeFeedCard extends StatelessWidget {
                   mainAxisAlignment: MainAxisAlignment.start,
                   children: [
                     Text(
-                      drama.localizedTitle(Localizations.localeOf(context).languageCode),
+                      drama.localizedTitle(
+                        Localizations.localeOf(context).languageCode,
+                      ),
                       key: Key('home-feed-title-${drama.id}'),
                       maxLines: 2,
                       overflow: TextOverflow.ellipsis,
@@ -69,7 +67,9 @@ class HomeFeedCard extends StatelessWidget {
   }
 
   Widget _cover(BuildContext context) {
-    final label = drama.localizedTag(Localizations.localeOf(context).languageCode);
+    final label = drama.localizedTag(
+      Localizations.localeOf(context).languageCode,
+    );
     return ClipRRect(
       key: Key('home-feed-cover-clip-${drama.id}'),
       borderRadius: BorderRadius.circular(AppDimens.cardCoverRadius),
@@ -82,7 +82,6 @@ class HomeFeedCard extends StatelessWidget {
               drama.posterUrl,
               key: Key('home-feed-cover-${drama.id}'),
               fit: BoxFit.cover,
-              showFallbackIcon: true,
               fallbackColor: AppColors.contentSurface,
             ),
             if (label.isNotEmpty)
@@ -133,7 +132,9 @@ class HomeFeedCard extends StatelessWidget {
   }
 
   List<String> _cardTags(BuildContext context) {
-    final localized = drama.localizedTypeLabels(Localizations.localeOf(context).languageCode);
+    final localized = drama.localizedTypeLabels(
+      Localizations.localeOf(context).languageCode,
+    );
     if (localized.isNotEmpty) return localized.take(3).toList(growable: false);
     final seen = <String>{};
     return [drama.genre, drama.category]

lib/pages/mine/widgets/mine_continue_watching.dart

@@ -128,7 +128,6 @@ class MineContinueWatching extends StatelessWidget {
                       child: RemoteImage(
                         record.dramaCover ?? '',
                         fit: BoxFit.cover,
-                        showFallbackIcon: true,
                         fallbackColor: AppColors.contentSurface,
                       ),
                     ),

lib/pages/new_releases/new_releases_page.dart

@@ -276,7 +276,6 @@ class _NewReleasesPageState extends State<NewReleasesPage> {
               RemoteImage(
                 drama.posterUrl,
                 fit: BoxFit.cover,
-                showFallbackIcon: true,
                 fallbackAspectRatio: 16 / 9,
               ),
               const DecoratedBox(
@@ -448,7 +447,6 @@ class _NewReleasesPageState extends State<NewReleasesPage> {
                     RemoteImage(
                       drama.posterUrl,
                       fit: BoxFit.cover,
-                      showFallbackIcon: true,
                       fallbackAspectRatio: 3 / 4,
                     ),
                     Positioned(

lib/pages/player/widgets/drama_info_sheet.dart

@@ -255,11 +255,7 @@ class _DramaInfoSheetState extends State<DramaInfoSheet> {
             width: _posterWidth,
             child: AspectRatio(
               aspectRatio: 3 / 4,
-              child: RemoteImage(
-                drama.posterUrl,
-                fit: BoxFit.cover,
-                showFallbackIcon: true,
-              ),
+              child: RemoteImage(drama.posterUrl, fit: BoxFit.cover),
             ),
           ),
         ),
@@ -466,11 +462,7 @@ class _DramaInfoSheetState extends State<DramaInfoSheet> {
                     width: _relatedWidth,
                     child: AspectRatio(
                       aspectRatio: 3 / 4,
-                      child: RemoteImage(
-                        drama.posterUrl,
-                        fit: BoxFit.cover,
-                        showFallbackIcon: true,
-                      ),
+                      child: RemoteImage(drama.posterUrl, fit: BoxFit.cover),
                     ),
                   ),
                 ),

lib/pages/recommend/widgets/home_hero_carousel.dart

@@ -187,7 +187,6 @@ class _HomeHeroCarouselState extends State<HomeHeroCarousel> {
         RemoteImage(
           banner.imageUrl,
           fit: BoxFit.cover,
-          showFallbackIcon: true,
           fallbackColor: AppColors.contentSurface,
         ),
         const DecoratedBox(
@@ -210,10 +209,7 @@ class _HomeHeroCarouselState extends State<HomeHeroCarousel> {
             left: 28,
             right: 28,
             bottom: _copyBottomInset,
-            child: _HeroCopy(
-              key: Key('home-hero-copy-$index'),
-              drama: drama,
-            ),
+            child: _HeroCopy(key: Key('home-hero-copy-$index'), drama: drama),
           ),
         if (drama != null)
           Positioned.fill(

lib/pages/recommend/widgets/home_recommend_content.dart

@@ -97,7 +97,6 @@ class HomePosterCard extends StatelessWidget {
                   RemoteImage(
                     drama.posterUrl,
                     fit: BoxFit.cover,
-                    showFallbackIcon: true,
                     fallbackColor: AppColors.contentSurface,
                   ),
                   if (tagLabel.isNotEmpty)
@@ -189,7 +188,6 @@ class HomeEditorPickBanner extends StatelessWidget {
               RemoteImage(
                 drama.posterUrl,
                 fit: BoxFit.cover,
-                showFallbackIcon: true,
                 fallbackColor: AppColors.contentSurface,
               ),
               const DecoratedBox(

lib/pages/recommend/widgets/playlist_detail_page.dart

@@ -310,7 +310,6 @@ class _PlaylistCollage extends StatelessWidget {
       child: RemoteImage(
         drama.posterUrl,
         fit: BoxFit.cover,
-        showFallbackIcon: true,
         fallbackColor: _filmBody,
       ),
     );

lib/pages/recommend/widgets/recommend_section_card.dart

@@ -25,7 +25,9 @@ class RecommendSectionCard extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    final tagLabel = drama.localizedTag(Localizations.localeOf(context).languageCode);
+    final tagLabel = drama.localizedTag(
+      Localizations.localeOf(context).languageCode,
+    );
     return SizedBox(
       width: AppDimens.recommendCardWidth,
       child: InkWell(
@@ -47,7 +49,6 @@ class RecommendSectionCard extends StatelessWidget {
                     RemoteImage(
                       drama.posterUrl,
                       fit: BoxFit.cover,
-                      showFallbackIcon: true,
                       fallbackColor: AppColors.contentSurface,
                     ),
                     if (tagLabel.isNotEmpty)
@@ -80,7 +81,9 @@ class RecommendSectionCard extends StatelessWidget {
             ),
             const SizedBox(height: AppDimens.cardCoverTitleGap),
             Text(
-              drama.localizedTitle(Localizations.localeOf(context).languageCode),
+              drama.localizedTitle(
+                Localizations.localeOf(context).languageCode,
+              ),
               key: Key('recommend-title-$sectionKey-${drama.id}'),
               maxLines: 2,
               overflow: TextOverflow.ellipsis,
@@ -116,7 +119,9 @@ class RecommendSectionCard extends StatelessWidget {
   }
 
   List<String> _cardTags(BuildContext context) {
-    final localized = drama.localizedTypeLabels(Localizations.localeOf(context).languageCode);
+    final localized = drama.localizedTypeLabels(
+      Localizations.localeOf(context).languageCode,
+    );
     if (localized.isNotEmpty) return localized.take(3).toList(growable: false);
     final seen = <String>{};
     return [drama.genre, drama.category]

lib/pages/watch_records/widgets/watch_record_card.dart

@@ -70,9 +70,11 @@ class WatchRecordCard extends StatelessWidget {
                   key: ValueKey('watch-record-cover-${record.dramaId}'),
                   width: _coverWidth,
                   height: _coverHeight,
-                  showFallbackIcon: true,
-                  fallbackIconKey: ValueKey(
-                    'watch-record-cover-placeholder-${record.dramaId}',
+                  fallbackWidget: ColoredBox(
+                    key: ValueKey(
+                      'watch-record-cover-placeholder-${record.dramaId}',
+                    ),
+                    color: AppColors.raised,
                   ),
                 ),
               ),