alertdialog报错_CupertinoAlertDialog的使用报错alertDialogLabel解决办法

CupertinoAlertDialog 是iOS 类型的提示弹框

代码

showDialog(context: context,builder: (BuildContext context) {

return CupertinoAlertDialog(

title: Text("这是一个iOS风格的对话框"),

content: Text(&＃39;neirogu&＃39;),

actions: [

CupertinoDialogAction(

child: Text("取消"),

onPressed: () {

Navigator.pop(context);

print("取消");

},

),

CupertinoDialogAction(

child: Text("确定"),

onPressed: () {

Navigator.pop(context);

print("确定");

},

),

],

);

}

);

报错

flutter: ══╡ EXCEPTION CAUGHT BY WIDGETS LIBRARY ╞═══════════════════════════════════════════════════════════

flutter: The following NoSuchMethodError was thrown building LayoutBuilder:

flutter: The getter &＃39;alertDialogLabel&＃39; was called on null.

flutter: Receiver: null

flutter: Tried calling: alertDialogLabel

flutter:

flutter: The relevant error-causing widget was:

解决方法>>https://github.com/flutter/flutter/issues/23047

在main配置localizationsDelegates的GlobalCupertinoLocalizations.delegate

localizationsDelegates: [

GlobalCupertinoLocalizations.delegate

],