- 30 秒定时冲刷:AnalyticsService.startPeriodicFlush/stopPeriodicFlush, 前台期间 Timer.periodic 周期冲刷;SessionTracker 新增 onEnterForeground 回调,退后台停(并保留既有 flushNow 触发)、回前台恢复,App dispose 收尾。 - 失败退避:网络错误/5xx 后 30s→60s→120s 指数退避封顶 5 分钟,退避窗口 只挡定时冲刷(flushNow/满 20/冷启动显式触发不受限),上传成功即重置; 429 改按网络错误同路径保段重试(Retry-After 分支待后端限流落地)。 - anonymousId 持久化:restore 时从 shared_preferences 采用/落盘 pb.analytics.anonymousId,首次生成后跨冷启动稳定;读取失败降级 进程内临时 id 不崩溃。 - 测试 272 → 286(+14):fakeAsync 定时/退避 8 个、anonymousId 4 个、 429 保段 1 个、前后台回调成对 1 个;analyze 0 问题、format 无 diff。 Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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@@ -73,5 +73,32 @@ void main() {
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tracker.didChangeAppLifecycleState(AppLifecycleState.resumed);
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expect(tracker.sessionId, isNot(original));
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});
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test('前后台回调成对触发一次,生命周期级联不重复', () {
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var leaveCount = 0;
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var enterCount = 0;
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final tracker = SessionTracker(
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onLeaveForeground: () => leaveCount++,
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onEnterForeground: () => enterCount++,
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);
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// 退后台级联:inactive → hidden → paused 只回调 leave 一次。
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tracker.didChangeAppLifecycleState(AppLifecycleState.inactive);
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tracker.didChangeAppLifecycleState(AppLifecycleState.hidden);
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tracker.didChangeAppLifecycleState(AppLifecycleState.paused);
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expect(leaveCount, 1);
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expect(enterCount, 0);
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// 回前台级联:hidden → inactive → resumed 只回调 enter 一次。
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tracker.didChangeAppLifecycleState(AppLifecycleState.hidden);
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tracker.didChangeAppLifecycleState(AppLifecycleState.inactive);
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tracker.didChangeAppLifecycleState(AppLifecycleState.resumed);
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expect(leaveCount, 1);
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expect(enterCount, 1);
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// 已在前台重复 resumed(冷启动首个 resumed 同形)不触发 enter。
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tracker.didChangeAppLifecycleState(AppLifecycleState.resumed);
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expect(enterCount, 1);
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});
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});
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}
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