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fix LateInitializationError
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@Nahrawene-ben-hmida
Nahrawene-ben-hmida committed Jan 13, 2025
1 parent 39fe8ab commit a983756
Showing 1 changed file with 121 additions and 119 deletions.
240 changes: 121 additions & 119 deletions lib/src/toast.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -1171,131 +1171,133 @@ class BotToast {
///如果为[close]则关闭该toast,并且拦截事件停止冒泡
///如果为null or [none]则不拦截事件
///
static CancelFunc showEnhancedWidget({
required ToastBuilder toastBuilder,
UniqueKey? key,
String? groupKey,
/*bool*/ Object crossPage = nil,
/*bool*/ Object allowClick = nil,
/*bool*/ Object clickClose = nil,
/*bool*/ Object ignoreContentClick = nil,
/*bool*/ Object onlyOne = nil,
/*bool*/ Object enableKeyboardSafeArea = nil,
BackButtonBehavior? backButtonBehavior = nilBackButtonBehavior,
FutureFunc? closeFunc = nilFutureFunc,
VoidCallback? onClose = nilVoidCallback,
Color backgroundColor = nilColor,
WrapWidget? warpWidget = nilWrapWidget,
Duration? duration = nilDuration,
}) {
// ignore: unnecessary_null_comparison
assert(enableKeyboardSafeArea != null);

var o = defaultOption.enhanced;

crossPage = returnFirstIfNotNil(crossPage, o.crossPage);
allowClick = returnFirstIfNotNil(allowClick, o.allowClick);
clickClose = returnFirstIfNotNil(clickClose, o.clickClose);
ignoreContentClick = returnFirstIfNotNil(ignoreContentClick, o.ignoreContentClick);
onlyOne = returnFirstIfNotNil(onlyOne, o.onlyOne);
enableKeyboardSafeArea = returnFirstIfNotNil(enableKeyboardSafeArea, o.enableKeyboardSafeArea);
backButtonBehavior = returnFirstIfNotNil(backButtonBehavior, o.backButtonBehavior);
closeFunc = returnFirstIfNotNil(closeFunc, o.closeFunc);
onClose = returnFirstIfNotNil(onClose, o.onClose);
backgroundColor = returnFirstIfNotNil(backgroundColor, o.backgroundColor);
warpWidget = returnFirstIfNotNil(warpWidget, o.warpWidget);
duration = returnFirstIfNotNil(duration, o.duration);

assert(isNilOr<bool>([enableKeyboardSafeArea, onlyOne, clickClose, allowClick, ignoreContentClick, crossPage]), 'Must be of bool type');
static CancelFunc showEnhancedWidget({
required ToastBuilder toastBuilder,
UniqueKey? key,
String? groupKey,
/*bool*/ Object crossPage = nil,
/*bool*/ Object allowClick = nil,
/*bool*/ Object clickClose = nil,
/*bool*/ Object ignoreContentClick = nil,
/*bool*/ Object onlyOne = nil,
/*bool*/ Object enableKeyboardSafeArea = nil,
BackButtonBehavior? backButtonBehavior = nilBackButtonBehavior,
FutureFunc? closeFunc = nilFutureFunc,
VoidCallback? onClose = nilVoidCallback,
Color backgroundColor = nilColor,
WrapWidget? warpWidget = nilWrapWidget,
Duration? duration = nilDuration,
}) {
// ignore: unnecessary_null_comparison
assert(enableKeyboardSafeArea != null);

var o = defaultOption.enhanced;

crossPage = returnFirstIfNotNil(crossPage, o.crossPage);
allowClick = returnFirstIfNotNil(allowClick, o.allowClick);
clickClose = returnFirstIfNotNil(clickClose, o.clickClose);
ignoreContentClick = returnFirstIfNotNil(ignoreContentClick, o.ignoreContentClick);
onlyOne = returnFirstIfNotNil(onlyOne, o.onlyOne);
enableKeyboardSafeArea = returnFirstIfNotNil(enableKeyboardSafeArea, o.enableKeyboardSafeArea);
backButtonBehavior = returnFirstIfNotNil(backButtonBehavior, o.backButtonBehavior);
closeFunc = returnFirstIfNotNil(closeFunc, o.closeFunc);
onClose = returnFirstIfNotNil(onClose, o.onClose);
backgroundColor = returnFirstIfNotNil(backgroundColor, o.backgroundColor);
warpWidget = returnFirstIfNotNil(warpWidget, o.warpWidget);
duration = returnFirstIfNotNil(duration, o.duration);

assert(isNilOr<bool>([enableKeyboardSafeArea, onlyOne, clickClose, allowClick, ignoreContentClick, crossPage]), 'Must be of bool type');

// Declare cancelFunc as non-late and initialize it
CancelFunc cancelFunc = () {};

final CancelFunc dismissFunc = () async {
await closeFunc?.call();
cancelFunc();
};

//由于cancelFunc一开始是为空的,所以在赋值之前需要在闭包里使用
late final CancelFunc cancelFunc;
final CancelFunc dismissFunc = () async {
await closeFunc?.call();
cancelFunc();
};
//onlyOne 功能
final List<CancelFunc> cache = (cacheCancelFunc[groupKey ?? defaultKey] ??= []);
if (onlyOne == true) {
final clone = cache.toList();
cache.clear();
clone.forEach((cancel) {
cancel();
});
}
cache.add(dismissFunc);

//定时功能
Timer? timer;
if (duration != null) {
timer = Timer(duration, () {
dismissFunc();
timer = null;
});
}

//onlyOne 功能
final List<CancelFunc> cache = (cacheCancelFunc[groupKey ?? defaultKey] ??= []);
if (onlyOne == true) {
final clone = cache.toList();
cache.clear();
clone.forEach((cancel) {
cancel();
});
}
cache.add(dismissFunc);

//定时功能
Timer? timer;
if (duration != null) {
timer = Timer(duration, () {
dismissFunc();
timer = null;
});
}
//跨页自动关闭
BotToastNavigatorObserverProxy? observerProxy;
if (!(crossPage == true)) {
observerProxy = BotToastNavigatorObserverProxy.all(dismissFunc);
BotToastNavigatorObserver.register(observerProxy);
}

//跨页自动关闭
BotToastNavigatorObserverProxy? observerProxy;
if (!(crossPage == true)) {
observerProxy = BotToastNavigatorObserverProxy.all(dismissFunc);
BotToastNavigatorObserver.register(observerProxy);
}
//拦截点击返回事件
VoidCallback? unRegisterFunc;
if (backButtonBehavior == BackButtonBehavior.ignore) {
unRegisterFunc = BotToastWidgetsBindingObserver.singleton.registerPopListener(() {
return true;
});
} else if (backButtonBehavior == BackButtonBehavior.close) {
unRegisterFunc = BotToastWidgetsBindingObserver.singleton.registerPopListener(() {
dismissFunc();
unRegisterFunc?.call();
unRegisterFunc = null;
return true;
});
}

//拦截点击返回事件
VoidCallback? unRegisterFunc;
if (backButtonBehavior == BackButtonBehavior.ignore) {
unRegisterFunc = BotToastWidgetsBindingObserver.singleton.registerPopListener(() {
return true;
});
} else if (backButtonBehavior == BackButtonBehavior.close) {
unRegisterFunc = BotToastWidgetsBindingObserver.singleton.registerPopListener(() {
dismissFunc();
unRegisterFunc?.call();
unRegisterFunc = null;
return true;
});
cancelFunc = showWidget(
groupKey: groupKey,
key: key,
toastBuilder: (_) {
return KeyboardSafeArea(
enable: enableKeyboardSafeArea == true,
child: ProxyDispose(disposeCallback: () {
cache.remove(dismissFunc);
if (observerProxy != null) {
BotToastNavigatorObserver.unregister(observerProxy);
}
timer?.cancel();
onClose?.call();
unRegisterFunc?.call();
}, child: Builder(builder: (BuildContext context) {
final TextStyle textStyle = Theme.of(context).textTheme.bodyMedium!;
Widget child = DefaultTextStyle(
style: textStyle,
child: Stack(children: <Widget>[
Listener(
onPointerDown: clickClose == true ? (_) => dismissFunc() : null,
behavior: allowClick == true ? HitTestBehavior.translucent : HitTestBehavior.opaque,
child: const SizedBox.expand(),
),
IgnorePointer(
child: Container(color: backgroundColor),
),
IgnorePointer(
ignoring: ignoreContentClick == true,
child: toastBuilder(dismissFunc),
)
]));
return warpWidget != null ? warpWidget(dismissFunc, child) : child;
})),
);
}
);

cancelFunc = showWidget(
groupKey: groupKey,
key: key,
toastBuilder: (_) {
return KeyboardSafeArea(
enable: enableKeyboardSafeArea == true,
child: ProxyDispose(disposeCallback: () {
cache.remove(dismissFunc);
if (observerProxy != null) {
BotToastNavigatorObserver.unregister(observerProxy);
}
timer?.cancel();
onClose?.call();
unRegisterFunc?.call();
}, child: Builder(builder: (BuildContext context) {
final TextStyle textStyle = Theme.of(context).textTheme.bodyMedium!;
Widget child = DefaultTextStyle(
style: textStyle,
child: Stack(children: <Widget>[
Listener(
onPointerDown: clickClose == true ? (_) => dismissFunc() : null,
behavior: allowClick == true ? HitTestBehavior.translucent : HitTestBehavior.opaque,
child: const SizedBox.expand(),
),
IgnorePointer(
child: Container(color: backgroundColor),
),
IgnorePointer(
ignoring: ignoreContentClick == true,
child: toastBuilder(dismissFunc),
)
]));
return warpWidget != null ? warpWidget(dismissFunc, child) : child;
})),
);
});

return dismissFunc;
}
return dismissFunc;
}

/// Displays a Widget on the screen that can persist across multiple pages.
/// [toastBuilder] is the builder function to generate the Widget to be displayed.
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