fix(home): 修复 feed 更新触发的 build 期 setState

test/home/home_logic_test.dart

@@ -1,5 +1,6 @@
 // Author: fruit.com.cn
 
+import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:fruitshorts/core/data/models/drama.dart';
 import 'package:fruitshorts/pages/discover/discover_types.dart';
@@ -121,6 +122,40 @@ void main() {
     logic.dispose();
   });
 
+  testWidgets('should_defer_drama_notification_when_changed_during_build', (
+    tester,
+  ) async {
+    final logic = HomeLogic(dramas);
+    var notifications = 0;
+    var immediateNotifications = -1;
+    var changed = false;
+    logic.addListener(() => notifications++);
+
+    await tester.pumpWidget(
+      MaterialApp(
+        home: ListenableBuilder(
+          listenable: logic,
+          builder: (context, _) {
+            if (!changed) {
+              changed = true;
+              logic.onDramaChanged(dramas[1]);
+              immediateNotifications = notifications;
+            }
+            return const SizedBox.shrink();
+          },
+        ),
+      ),
+    );
+
+    expect(immediateNotifications, 0);
+    expect(tester.takeException(), isNull);
+    expect(logic.currentDrama.id, 'city');
+    await tester.pump();
+    expect(notifications, 1);
+    expect(tester.takeException(), isNull);
+    logic.dispose();
+  });
+
   test('should_map_onto_root_tabs_when_my_page_actions_fire', () {
     final logic = HomeLogic(dramas);
 

test/player/player_logic_test.dart

@@ -236,6 +236,7 @@ void main() {
       logic.dispose();
       await _drain(logic);
     });
+
   });
 
   group('history writes', () {
@@ -618,6 +619,68 @@ void main() {
       logic.dispose();
       await _drain(logic);
     });
+
+    testWidgets(
+      'should_defer_feed_update_side_effects_when_called_during_build',
+      (tester) async {
+        final factory = _RecordingFactory();
+        final initial = [_drama('a'), _drama('b'), _drama('c')];
+        final latest = [_drama('d'), _drama('c'), _drama('a')];
+        final logic = _logic(FakeWatchHistory());
+        logic.attach(
+          PlayerPage(
+            drama: initial.first,
+            initialIndex: 0,
+            homeMode: true,
+            feedDramas: initial,
+          ),
+          isMounted: () => true,
+        );
+        await tester.runAsync(() async {
+          logic.start(
+            factory: factory.create,
+            coordinator: PlaybackCoordinator(),
+          );
+          await _drain(logic);
+        });
+        expect(logic.currentDramaId, 'a');
+        expect(logic.session.active, isNotNull);
+        var updateScheduled = false;
+
+        await tester.pumpWidget(
+          MaterialApp(
+            home: ListenableBuilder(
+              listenable: logic,
+              builder: (context, _) {
+                if (!updateScheduled) {
+                  updateScheduled = true;
+                  logic.updateFeed(latest, keepDramaId: 'a');
+                }
+                return Scaffold(
+                  body: PageView.builder(
+                    controller: logic.pages,
+                    itemCount: logic.visibleIndices.length,
+                    itemBuilder: (_, index) =>
+                        ColoredBox(color: Colors.black, key: ValueKey(index)),
+                  ),
+                );
+              },
+            ),
+          ),
+        );
+        expect(tester.takeException(), isNull);
+        expect(logic.pages.hasClients, isTrue);
+
+        await tester.pump();
+        await tester.pump(const Duration(milliseconds: 100));
+        await tester.pumpAndSettle();
+
+        expect(tester.takeException(), isNull);
+        expect(logic.queue.entryAt(2).drama.id, 'a');
+        expect(logic.pages.page, closeTo(2, 0.01));
+        logic.dispose();
+      },
+    );
   });
 
   group('lifecycle', () {