feat(flutter): 精简首页标题并重做空态视觉

lib/core/widgets/empty_state.dart

@@ -4,15 +4,17 @@ import 'package:flutter/material.dart';
 
 import '../theme/app_colors.dart';
 
-const double _regularArtSize = 96;
-const double _compactArtSize = 64;
-const double _regularIconSize = 42;
-const double _compactIconSize = 28;
-const double _regularRadius = 28;
-const double _compactRadius = 18;
-const double _maxContentWidth = 280;
+const double _regularArtSize = 84;
+const double _compactArtSize = 60;
+const double _regularInnerSize = 56;
+const double _compactInnerSize = 40;
+const double _regularIconSize = 27;
+const double _compactIconSize = 21;
+const double _maxContentWidth = 260;
 const double _actionMinHeight = 44;
-const double _artOpacity = 0.11;
+const double _outerArtOpacity = 0.055;
+const double _outerBorderOpacity = 0.11;
+const double _innerArtOpacity = 0.11;
 
 /// 统一空列表占位：柔和图标、标题、可选说明与操作。
 class EmptyState extends StatelessWidget {
@@ -39,6 +41,7 @@ class EmptyState extends StatelessWidget {
     final dark = Theme.of(context).brightness == Brightness.dark;
     final iconColor = dark ? AppColors.blueSoft : AppColors.blue;
     final artSize = compact ? _compactArtSize : _regularArtSize;
+    final innerSize = compact ? _compactInnerSize : _regularInnerSize;
     final iconSize = compact ? _compactIconSize : _regularIconSize;
     final hasAction = actionLabel != null && onAction != null;
     return Center(
@@ -46,7 +49,11 @@ class EmptyState extends StatelessWidget {
         key: const Key('empty-state-content'),
         constraints: const BoxConstraints(maxWidth: _maxContentWidth),
         child: Padding(
-          padding: EdgeInsets.all(compact ? 16 : 24),
+          key: const Key('empty-state-padding'),
+          padding: EdgeInsets.symmetric(
+            horizontal: compact ? 16 : 24,
+            vertical: compact ? 16 : 28,
+          ),
           child: Semantics(
             container: true,
             label: title,
@@ -60,20 +67,35 @@ class EmptyState extends StatelessWidget {
                     height: artSize,
                     alignment: Alignment.center,
                     decoration: BoxDecoration(
-                      color: AppColors.blue.withValues(alpha: _artOpacity),
-                      borderRadius: BorderRadius.circular(
-                        compact ? _compactRadius : _regularRadius,
+                      shape: BoxShape.circle,
+                      color: AppColors.blue.withValues(alpha: _outerArtOpacity),
+                      border: Border.all(
+                        color: AppColors.blue.withValues(
+                          alpha: _outerBorderOpacity,
+                        ),
                       ),
                     ),
-                    child: Icon(
-                      icon,
-                      key: const Key('empty-state-icon'),
-                      size: iconSize,
-                      color: iconColor,
+                    child: Container(
+                      key: const Key('empty-state-art-inner'),
+                      width: innerSize,
+                      height: innerSize,
+                      alignment: Alignment.center,
+                      decoration: BoxDecoration(
+                        shape: BoxShape.circle,
+                        color: AppColors.blue.withValues(
+                          alpha: _innerArtOpacity,
+                        ),
+                      ),
+                      child: Icon(
+                        icon,
+                        key: const Key('empty-state-icon'),
+                        size: iconSize,
+                        color: iconColor,
+                      ),
                     ),
                   ),
                 ),
-                SizedBox(height: compact ? 10 : 16),
+                SizedBox(height: compact ? 10 : 14),
                 ExcludeSemantics(
                   child: Text(
                     title,
@@ -83,7 +105,7 @@ class EmptyState extends StatelessWidget {
                     textAlign: TextAlign.center,
                     style: TextStyle(
                       color: scheme.onSurface,
-                      fontSize: compact ? 14 : 16,
+                      fontSize: 15,
                       fontWeight: FontWeight.w600,
                       height: 1.35,
                     ),
@@ -99,14 +121,14 @@ class EmptyState extends StatelessWidget {
                       textAlign: TextAlign.center,
                       style: const TextStyle(
                         color: AppColors.muted,
-                        fontSize: 13,
-                        height: 1.4,
+                        fontSize: 12.5,
+                        height: 1.45,
                       ),
                     ),
                   ),
                 ],
                 if (hasAction) ...[
-                  const SizedBox(height: 10),
+                  const SizedBox(height: 8),
                   TextButton(
                     key: const Key('empty-state-action'),
                     onPressed: onAction,
@@ -115,7 +137,10 @@ class EmptyState extends StatelessWidget {
                       minimumSize: const Size(44, _actionMinHeight),
                       padding: const EdgeInsets.symmetric(horizontal: 14),
                     ),
-                    child: Text(actionLabel!),
+                    child: Text(
+                      actionLabel!,
+                      style: const TextStyle(fontSize: 13),
+                    ),
                   ),
                 ],
               ],

lib/pages/discover/discover_view.dart

@@ -144,24 +144,8 @@ class _DiscoverPageState extends State<DiscoverPage> {
       ),
       SliverToBoxAdapter(
         child: Padding(
-          padding: const EdgeInsets.fromLTRB(16, 18, 16, 12),
-          child: Column(
-            crossAxisAlignment: CrossAxisAlignment.start,
-            children: [
-              _categories(l10n, categories),
-              const SizedBox(height: 18),
-              Text(
-                l10n.allDramas,
-                key: const Key('home-all-dramas-title'),
-                style: const TextStyle(
-                  color: AppColors.onPrimary,
-                  fontSize: 18,
-                  fontWeight: FontWeight.w700,
-                  height: 1.2,
-                ),
-              ),
-            ],
-          ),
+          padding: const EdgeInsets.fromLTRB(16, 18, 16, 14),
+          child: _categories(l10n, categories),
         ),
       ),
       _HomeDramaGrid(
@@ -277,6 +261,7 @@ class _DiscoverPageState extends State<DiscoverPage> {
         (code: 'category-${category.id}', label: category.name),
     ];
     return SizedBox(
+      key: const Key('home-category-chips'),
       height: 32,
       child: ListView.separated(
         scrollDirection: Axis.horizontal,

test/discover/home_all_dramas_grid_test.dart

@@ -37,13 +37,24 @@ void main() {
       await tester.pumpAndSettle();
 
       expect(find.text('Continue Watching'), findsNothing);
-      expect(find.text('All Dramas'), findsOneWidget);
+      expect(find.byKey(const Key('home-all-dramas-title')), findsNothing);
       expect(find.text('All'), findsOneWidget);
       expect(find.text('For You'), findsNothing);
       expect(
         tester.getCenter(find.text('All')).dx,
         lessThan(tester.getCenter(find.text('Hot')).dx),
       );
+      expect(
+        tester
+                .getTopLeft(
+                  find.byKey(const Key('home-drama-card-the-signal-demo')),
+                )
+                .dy -
+            tester
+                .getBottomLeft(find.byKey(const Key('home-category-chips')))
+                .dy,
+        closeTo(14, 0.1),
+      );
 
       final grid = tester.widget<SliverGrid>(
         find.byKey(const Key('home-all-dramas-grid')),
@@ -135,7 +146,7 @@ void main() {
     await tester.tap(find.byKey(const Key('tab-discover')));
     await tester.pumpAndSettle();
 
-    expect(find.text('All Dramas'), findsOneWidget);
+    expect(find.byKey(const Key('home-all-dramas-title')), findsNothing);
     expect(find.text('No matching dramas.'), findsOneWidget);
 
     await tester.tap(find.text('Romance'));
@@ -154,7 +165,7 @@ void main() {
     await tester.tap(find.byKey(const Key('tab-discover')));
     await tester.pumpAndSettle();
 
-    expect(find.text('All Dramas'), findsOneWidget);
+    expect(find.byKey(const Key('home-all-dramas-title')), findsNothing);
     expect(find.text('Categories could not be loaded.'), findsOneWidget);
     expect(find.text('Retry'), findsOneWidget);
     expect(find.byKey(const Key('home-all-dramas-grid')), findsNothing);
@@ -176,7 +187,7 @@ void main() {
     );
     await tester.pumpAndSettle();
 
-    expect(find.text('All Dramas'), findsOneWidget);
+    expect(find.byKey(const Key('home-all-dramas-title')), findsNothing);
     expect(find.text('City Lights & Velvet Nights'), findsOneWidget);
     expect(tester.takeException(), isNull);
   });

test/empty_state/empty_state_test.dart

@@ -23,24 +23,51 @@ void main() {
     );
 
     expect(find.byKey(const Key('empty-state-art')), findsOneWidget);
+    expect(find.byKey(const Key('empty-state-art-inner')), findsOneWidget);
     expect(find.byKey(const Key('empty-state-icon')), findsOneWidget);
     expect(find.text('No stories'), findsOneWidget);
     expect(find.text('New content will appear here.'), findsOneWidget);
     expect(
       tester.getSize(find.byKey(const Key('empty-state-art'))),
-      const Size(96, 96),
+      const Size(84, 84),
+    );
+    expect(
+      tester.getSize(find.byKey(const Key('empty-state-art-inner'))),
+      const Size(56, 56),
     );
     expect(
       tester.getSize(find.byKey(const Key('empty-state-icon'))),
-      const Size(42, 42),
+      const Size(27, 27),
+    );
+    final outer = tester.widget<Container>(
+      find.byKey(const Key('empty-state-art')),
+    );
+    final outerDecoration = outer.decoration! as BoxDecoration;
+    expect(outerDecoration.shape, BoxShape.circle);
+    expect(outerDecoration.color?.a, closeTo(0.055, 0.001));
+    expect(outerDecoration.border!.top.color.a, closeTo(0.11, 0.001));
+    final inner = tester.widget<Container>(
+      find.byKey(const Key('empty-state-art-inner')),
+    );
+    expect((inner.decoration! as BoxDecoration).color?.a, closeTo(0.11, 0.001));
+    expect(
+      tester
+          .widget<Padding>(find.byKey(const Key('empty-state-padding')))
+          .padding,
+      const EdgeInsets.symmetric(horizontal: 24, vertical: 28),
     );
     expect(
       tester
           .widget<Text>(find.byKey(const Key('empty-state-title')))
           .style
           ?.fontSize,
-      16,
+      15,
     );
+    final subtitle = tester.widget<Text>(
+      find.text('New content will appear here.'),
+    );
+    expect(subtitle.style?.fontSize, 12.5);
+    expect(tester.widget<Text>(find.text('Retry')).style?.fontSize, 13);
     expect(
       tester.getSize(find.byKey(const Key('empty-state-action'))).height,
       greaterThanOrEqualTo(44),
@@ -72,18 +99,28 @@ void main() {
 
     expect(
       tester.getSize(find.byKey(const Key('empty-state-art'))),
-      const Size(64, 64),
+      const Size(60, 60),
+    );
+    expect(
+      tester.getSize(find.byKey(const Key('empty-state-art-inner'))),
+      const Size(40, 40),
     );
     expect(
       tester.getSize(find.byKey(const Key('empty-state-icon'))),
-      const Size(28, 28),
+      const Size(21, 21),
     );
     expect(
       tester
           .widget<Text>(find.byKey(const Key('empty-state-title')))
           .style
           ?.fontSize,
-      14,
+      15,
+    );
+    expect(
+      tester
+          .widget<Padding>(find.byKey(const Key('empty-state-padding')))
+          .padding,
+      const EdgeInsets.symmetric(horizontal: 16, vertical: 16),
     );
     expect(find.byKey(const Key('empty-state-action')), findsNothing);
   });
@@ -129,7 +166,7 @@ void main() {
     final content = tester.widget<ConstrainedBox>(
       find.byKey(const Key('empty-state-content')),
     );
-    expect(content.constraints.maxWidth, 280);
+    expect(content.constraints.maxWidth, 260);
     expect(tester.takeException(), isNull);
   });
 }

test/widget_test.dart

@@ -155,7 +155,7 @@ void main() {
 
       await tester.pumpWidget(appUnderTest());
       await tester.pumpAndSettle();
-      expect(find.text('All Dramas'), findsOneWidget);
+      expect(find.byKey(const Key('home-all-dramas-grid')), findsOneWidget);
       await tester.binding.handlePopRoute();
       await tester.pumpAndSettle();
       expect(
@@ -186,15 +186,17 @@ void main() {
             .active,
         isFalse,
       );
-      expect(find.text('All Dramas'), findsOneWidget);
+      expect(find.byKey(const Key('home-all-dramas-grid')), findsOneWidget);
 
       await tester.binding.handlePopRoute();
       await tester.pumpAndSettle();
       await tester.tap(find.byKey(const Key('drawer-discover')));
       await tester.pumpAndSettle();
-      expect(find.text('All Dramas'), findsOneWidget);
+      expect(find.byKey(const Key('home-all-dramas-grid')), findsOneWidget);
       expect(
-        Navigator.of(tester.element(find.text('All Dramas'))).canPop(),
+        Navigator.of(
+          tester.element(find.byKey(const Key('home-all-dramas-grid'))),
+        ).canPop(),
         isFalse,
       );
     },
@@ -313,7 +315,7 @@ void main() {
       await tester.pumpAndSettle();
 
       expect(find.text('All'), findsOneWidget);
-      expect(find.text('All Dramas'), findsOneWidget);
+      expect(find.byKey(const Key('home-all-dramas-grid')), findsOneWidget);
       expect(find.text('Rewards'), findsOneWidget);
       expect(find.text(r'$ 0'), findsOneWidget);
       expect(find.text('Urban Romance', skipOffstage: false), findsOneWidget);
@@ -345,10 +347,12 @@ void main() {
     await tester.pumpAndSettle();
     await tester.tap(find.text('Home'));
     await tester.pumpAndSettle();
-    expect(find.text('All Dramas'), findsOneWidget);
+    expect(find.byKey(const Key('home-all-dramas-grid')), findsOneWidget);
     expect(find.byTooltip('Search'), findsNothing);
     expect(
-      Navigator.of(tester.element(find.text('All Dramas'))).canPop(),
+      Navigator.of(
+        tester.element(find.byKey(const Key('home-all-dramas-grid'))),
+      ).canPop(),
       isFalse,
     );
 
@@ -365,10 +369,12 @@ void main() {
 
     await tester.tap(find.byKey(const Key('tab-discover')));
     await tester.pumpAndSettle();
-    expect(find.text('All Dramas'), findsOneWidget);
+    expect(find.byKey(const Key('home-all-dramas-grid')), findsOneWidget);
     expect(find.byTooltip('Search'), findsNothing);
     expect(
-      Navigator.of(tester.element(find.text('All Dramas'))).canPop(),
+      Navigator.of(
+        tester.element(find.byKey(const Key('home-all-dramas-grid'))),
+      ).canPop(),
       isFalse,
     );
     await tester.tap(find.byKey(const Key('tab-my-list')));
@@ -564,7 +570,7 @@ void main() {
       await tester.pumpWidget(appUnderTest());
       await tester.pumpAndSettle();
 
-      expect(find.text('All Dramas'), findsOneWidget);
+      expect(find.byKey(const Key('home-all-dramas-grid')), findsOneWidget);
       await tester.binding.handlePopRoute();
       await tester.pumpAndSettle();
       expect(find.text('Quick access'), findsOneWidget);
@@ -572,7 +578,7 @@ void main() {
       await tester.binding.handlePopRoute();
       await tester.pumpAndSettle();
       expect(find.text('Quick access'), findsNothing);
-      expect(find.text('All Dramas'), findsOneWidget);
+      expect(find.byKey(const Key('home-all-dramas-grid')), findsOneWidget);
       expect(
         Navigator.of(
           tester.element(find.byKey(const Key('home-tabs-bar'))),