feat: add app lifecycle refresh coordinator

2026-03-20 15:39:44 +08:00
parent e64b9c670c
commit f4c07287bc
3 changed files with 80 additions and 0 deletions
@@ -0,0 +1,29 @@
+import 'package:flutter/widgets.dart';
+
+class CacheRefreshCoordinator with WidgetsBindingObserver {
+  final Duration minInterval;
+  final void Function() onRefresh;
+  final DateTime Function() now;
+
+  DateTime? _lastRefreshedAt;
+
+  CacheRefreshCoordinator({
+    required this.minInterval,
+    required this.onRefresh,
+    DateTime Function()? now,
+  }) : now = now ?? DateTime.now;
+
+  @override
+  void didChangeAppLifecycleState(AppLifecycleState state) {
+    if (state != AppLifecycleState.resumed) {
+      return;
+    }
+    final current = now();
+    final last = _lastRefreshedAt;
+    if (last != null && current.difference(last) < minInterval) {
+      return;
+    }
+    _lastRefreshedAt = current;
+    onRefresh();
+  }
+}