71 lines
1.6 KiB
Dart
71 lines
1.6 KiB
Dart
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import 'dart:async';
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import 'package:flutter/cupertino.dart';
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import 'package:shared_preferences/shared_preferences.dart';
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class SharedPrefButton extends StatefulWidget {
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final Function(bool)? onClick;
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final String spKey;
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final Widget enabledWidget;
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final Widget disabledWidget;
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final bool toggleOnTap;
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SharedPrefButton({
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required this.enabledWidget,
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required this.disabledWidget,
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required this.spKey,
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this.toggleOnTap = true,
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this.onClick,
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});
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@override
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State<StatefulWidget> createState() => _SharedPrefButtonState();
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}
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class _SharedPrefButtonState extends State<SharedPrefButton> {
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SharedPreferences? _sp;
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bool value = false;
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StreamSubscription? _streamSubscription;
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@override
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void dispose() {
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_streamSubscription?.cancel();
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_streamSubscription = null;
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super.dispose();
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}
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@override
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void initState() {
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super.initState();
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SharedPreferences.getInstance().then((v) {
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_sp = v;
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value = _sp!.getBool(widget.spKey) ?? false;
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if (mounted) {
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setState(() {});
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}
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});
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_streamSubscription = Stream.periodic(const Duration(milliseconds: 500),
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(_) => _sp?.getBool(widget.spKey) ?? false).distinct().listen((v) {
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value = v;
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if (mounted) {
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setState(() {});
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}
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});
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}
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@override
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Widget build(BuildContext context) {
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return GestureDetector(
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onTap: widget.toggleOnTap
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? () {
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value = !value;
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_sp?.setBool(widget.spKey, value);
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setState(() {});
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}
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: null,
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child: value ? widget.enabledWidget : widget.disabledWidget,
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);
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}
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}
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