31 lines
814 B
Dart
31 lines
814 B
Dart
import "dart:async";
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import "package:flutter/material.dart";
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import "package:hooks_riverpod/hooks_riverpod.dart";
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final appLifecycleStateProvider = StreamProvider<AppLifecycleState>((ref) {
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final controller = StreamController<AppLifecycleState>();
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final observer = _AppLifecycleObserver((state) {
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if (controller.isClosed) return;
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controller.add(state);
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});
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WidgetsBinding.instance.addObserver(observer);
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ref.onDispose(() {
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WidgetsBinding.instance.removeObserver(observer);
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controller.close();
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});
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return controller.stream;
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});
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class _AppLifecycleObserver extends WidgetsBindingObserver {
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final ValueChanged<AppLifecycleState> onChange;
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_AppLifecycleObserver(this.onChange);
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@override
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void didChangeAppLifecycleState(AppLifecycleState state) {
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onChange(state);
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}
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}
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