How I Fixed Flutter Web’s Annoying Page Reload Problem

说明与用途

使用 flutter_web_storage，Flutter Web 应用在页面刷新时保留状态和路由，消除数据丢失和启动闪烁。

问题

Flutter web apps lose in‑memory state and navigation history on page refresh, causing UX issues like lost form data, reset filters, stale admin views, and route loss.

结果

The app now retains form drafts, filter selections, admin changes, and deep‑link routes after a browser refresh, with no startup flicker and instant cross‑tab sync.

工作流

• 1. Add flutter_web_storage to pubspec.yaml
• 2. Import FlutterWebStorage and obtain instance
• 3. Use setString, setStringList, etc. to persist data synchronously in initState or constructors
• 4. Register WebRoutePreserverNavigatorObserver to restore routes on boot
• 5. Optionally listen to storage events for real‑time cross‑tab updates

证据

flutter_web_storage bypasses the asynchronous microtask queue entirely

来源

Cross‑Tab Event Broadcasting (window.onStorage) instantly updates Tab B

来源