Render startup immediately and defer native work with a smooth home transition

2026-10-14 17:26:24 +08:00
parent bb7a7a2e58
commit ce21cdc10c
17 changed files with 641 additions and 144 deletions
@@ -0,0 +1,31 @@
+import 'dart:async';
+
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:hepan_everyday/app/tp_startup.dart';
+import 'package:hepan_everyday/app/tp_launch_page.dart';
+
+void main() {
+  testWidgets(
+    'slow initialization paints branded frames instead of waiting without a Flutter UI',
+    (tester) async {
+      final ready = Completer<void>();
+      final startup = launchApplication(
+        ready: ready.future,
+        child: const MaterialApp(home: Text('已读取课表')),
+      );
+      try {
+        await tester.pump();
+        await tester.pump(const Duration(seconds: 3));
+        expect(find.byType(TpLaunchPage), findsOneWidget);
+        expect(find.text('已读取课表'), findsNothing);
+        expect(tester.binding.sendFramesToEngine, isTrue);
+      } finally {
+        ready.complete();
+        await startup;
+        await tester.pumpAndSettle();
+        await tester.pumpWidget(const SizedBox());
+      }
+    },
+  );
+}