【发布时间】：2021-05-08 08:19:32
【问题描述】：
我正在开发应用程序，我正在使用路由浏览页面，我没有使用任何英雄或 FloatingActionButtons，但我收到了这个与英雄相关的错误，有没有人知道可能是什么原因那个？
这是导航调用
nextTapped()async{
if(occasionTitleTxtField.text.isEmpty || dateTxtField.text.isEmpty || detailsTxtField.text.isEmpty)
ErrorOverlay("Invalid Data", false);
else
{
await LoadingOverlay.of(context).during(UserOperations().createFirstOccasion(context, occasionTitleTxtField.text, dateTxtField.text, detailsTxtField.text, repeatEveryYear, timeLimit)).then((value){
if(value.elementAt(0) == "true")
Navigator.of(context).pushReplacementNamed('/firstGift',arguments: FirstGiftPage(value.elementAt(1),occasionTitleTxtField.text));
});
}
}
这里是 route_generator
class RouteGenerator {
static Route<dynamic> generateRoute(RouteSettings settings) {
// Getting arguments passed in while calling Navigator.pushNamed
final args = settings.arguments;
switch (settings.name) {
case '/':
return MaterialPageRoute(builder: (_) => SplashScreen());
case '/login':
return MaterialPageRoute(builder: (_) => LoginPage());
case '/homepage':
return MaterialPageRoute(builder: (_) => HomePage());
case '/signUp':
return MaterialPageRoute(builder: (_) => SignUpScreen());
case '/otpScreen':
return MaterialPageRoute(builder: (_) {
OTPScreen screenArgs = args;
return OTPScreen(screenArgs.phoneNumber,screenArgs.countryCode);
});
case '/phoneNumber':
return MaterialPageRoute(builder: (_) {
PhoneNumberScreen screenArgs = args;
return PhoneNumberScreen(screenArgs.Provider);
});
case '/interests':
return MaterialPageRoute(builder: (_) => InterestsPage());
case '/invitation':
return MaterialPageRoute(builder: (_) => InvitationPage());
case '/firstOccasion':
return MaterialPageRoute(builder: (_) => FirstOccasion());
case '/firstGift':
return MaterialPageRoute(builder: (_) {
FirstGiftPage screenArgs = args;
return FirstGiftPage(screenArgs.occasionID,screenArgs.occasionTitle);
});
case '/map':
return MaterialPageRoute(builder: (_) => MapsPage());
default:
return _errorRoute();
}
}
static Route<dynamic> _errorRoute() {
return MaterialPageRoute(builder: (_) {
return Scaffold(
appBar: AppBar(
title: Text('Error'),
),
body: Center(
child: Text('UnderConstruction'),
),
);
});
}
}
我要导航到的页面
class FirstGiftPage extends StatefulWidget {
String occasionID;
String occasionTitle;
static LatLng storeLocation;
FirstGiftPage(this.occasionID,this.occasionTitle);
@override
_FirstGiftPageState createState() => _FirstGiftPageState();
}
class _FirstGiftPageState extends State<FirstGiftPage> {
TextEditingController giftTitleTxtField = TextEditingController();
TextEditingController giftLinkTxtField = TextEditingController();
TextEditingController giftPriceTxtField = TextEditingController();
TextEditingController giftStoreAddTxtField = TextEditingController();
int giftCounter = 0;
TextEditingController detailsTxtField = TextEditingController();
Future<File> imageFile;
nextTapped()async{
if(giftTitleTxtField.text.isEmpty || giftLinkTxtField.text.isEmpty || giftPriceTxtField.text.isEmpty || detailsTxtField.text.isEmpty)
ErrorOverlay("Invalid Data",false);
else
{
Map<String,dynamic> giftData={
"giftName" : giftTitleTxtField.text,
"giftLink" : giftLinkTxtField.text,
"giftPrice" : giftPriceTxtField.text,
"storeAddress": giftStoreAddTxtField.text,
"details" : detailsTxtField.text,
"giftQuantity" : giftCounter,
"images":[imageFile.toString()],
"occasionID": widget.occasionID
};
ErrorOverlay("Gift Done",true);
Navigator.of(context).pushReplacementNamed("/homepage");
}
}
showMaps(){
Navigator.of(context).pushNamed("/map");
}
@override
Widget build(BuildContext context) {
return Container(
decoration: BoxDecoration(
gradient: LinearGradient(
colors: [
Color.fromRGBO(246, 76, 77, 1),
Color.fromRGBO(156, 51, 117, 1)
],
begin: Alignment .topRight,
end: Alignment.bottomLeft
)
),
child: Scaffold(
backgroundColor: Colors.transparent,
appBar:AppBar(
automaticallyImplyLeading: false,
backgroundColor: Colors.transparent,
elevation: 0,
bottom: PreferredSize(
preferredSize: Size(0.0, 80.0),
child: Padding(
//TODO::Change padding to ScreenWidth - 300 / 2
padding: const EdgeInsets.only(left: 55.0 ,right: 55.0,bottom: 30.0),
child: Text(AppLocalizations.of(context).firstGift,style: TextStyle(color: Colors.white,fontSize: 30.0),textAlign: TextAlign.center,maxLines: 2,),
),
),
),
body: Padding(
padding: const EdgeInsets.only(top: 20.0,left: 15.0,right: 15.0),
child: Align(
alignment: Alignment.topCenter,
child: Column(
children: [
Padding(
padding: const EdgeInsets.all(8.0),
child: TextFormField(
controller: giftTitleTxtField,
obscureText: false,
decoration: InputDecoration(
filled: true,
fillColor: Colors.white,
contentPadding:EdgeInsets.only(top:20.0,bottom:20.0,left: 15.0),
hintText: AppLocalizations.of(context).giftName,
border: OutlineInputBorder(
borderSide: BorderSide(
color: Colors.white,
width: 1
),
borderRadius: BorderRadius.circular(30.0),
),
enabledBorder: OutlineInputBorder(
borderSide: BorderSide(
color: Colors.white,
width: 1
),
borderRadius: BorderRadius.circular(30.0),
),
prefix: Container(width: 10.0,),
hintStyle: TextStyle(
fontWeight: FontWeight.w600,
fontSize: 16,
)
),),
),
Padding(
padding: const EdgeInsets.all(8.0),
child: TextFormField(
controller: giftLinkTxtField,
obscureText: false,
decoration: InputDecoration(
filled: true,
fillColor: Colors.white,
contentPadding:EdgeInsets.only(top:20.0,bottom:20.0,left: 15.0),
hintText: AppLocalizations.of(context).giftLink,
border: OutlineInputBorder(
borderSide: BorderSide(
color: Colors.white,
width: 1
),
borderRadius: BorderRadius.circular(30.0),
),
enabledBorder: OutlineInputBorder(
borderSide: BorderSide(
color: Colors.white,
width: 1
),
borderRadius: BorderRadius.circular(30.0),
),
prefix: Container(width: 10.0,),
hintStyle: TextStyle(
fontWeight: FontWeight.w600,
fontSize: 16,
)
),),
),
Padding(
padding: const EdgeInsets.all(8.0),
child: TextFormField(
controller: giftPriceTxtField,
obscureText: false,
decoration: InputDecoration(
filled: true,
fillColor: Colors.white,
contentPadding:EdgeInsets.only(top:20.0,bottom:20.0,left: 15.0),
hintText: AppLocalizations.of(context).giftPrice,
border: OutlineInputBorder(
borderSide: BorderSide(
color: Colors.white,
width: 1
),
borderRadius: BorderRadius.circular(30.0),
),
enabledBorder: OutlineInputBorder(
borderSide: BorderSide(
color: Colors.white,
width: 1
),
borderRadius: BorderRadius.circular(30.0),
),
prefix: Container(width: 10.0,),
hintStyle: TextStyle(
fontWeight: FontWeight.w600,
fontSize: 16,
)
),),
),
Padding(
padding: const EdgeInsets.all(8.0),
child: TextFormField(
readOnly: true,
onTap: showMaps,
controller: giftStoreAddTxtField,
obscureText: false,
decoration: InputDecoration(
filled: true,
fillColor: Colors.white,
contentPadding:EdgeInsets.only(top:20.0,bottom:20.0,left: 15.0),
hintText: AppLocalizations.of(context).giftStoreAdd,
border: OutlineInputBorder(
borderSide: BorderSide(
color: Colors.white,
width: 1
),
borderRadius: BorderRadius.circular(30.0),
),
enabledBorder: OutlineInputBorder(
borderSide: BorderSide(
color: Colors.white,
width: 1
),
borderRadius: BorderRadius.circular(30.0),
),
hintStyle: TextStyle(
fontWeight: FontWeight.w600,
fontSize: 16,
)
),),
),
Padding(
padding: const EdgeInsets.all(8.0),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Padding(
padding: const EdgeInsets.all(8.0),
child: Text(AppLocalizations.of(context).giftQuantity,style: TextStyle(color: Colors.white),),
),
Padding(
padding: const EdgeInsets.all(8.0),
child: Counter(
initialValue: giftCounter,
minValue: 0,
maxValue: 10,
step: 1,
decimalPlaces: 0,
textStyle: TextStyle(color: Colors.white),
onChanged: (value) { // get the latest value from here
setState(() {
giftCounter = value;
});
},
),
),
],
),
),
Padding(
padding: const EdgeInsets.all(8.0),
child: TextFormField(
enabled: false,
obscureText: false,
decoration: InputDecoration(
filled: true,
fillColor: Colors.white,
contentPadding: EdgeInsets.only(top: 20),
hintText: widget.occasionTitle,
border: OutlineInputBorder(
borderSide: BorderSide(
color: Colors.white,
width: 1
),
borderRadius: BorderRadius.circular(20.0),
),
enabledBorder: OutlineInputBorder(
borderSide: BorderSide(
color: Colors.white,
width: 1
),
borderRadius: BorderRadius.circular(20.0),
),
prefix: Container(width: 10.0,),
hintStyle: TextStyle(
fontWeight: FontWeight.w600,
fontSize: 16,
)
),),
),
Padding(
padding: const EdgeInsets.all(8.0),
child: TextFormField(
maxLines: null,
textAlign: TextAlign.center,
textAlignVertical: TextAlignVertical.center,
controller: detailsTxtField,
obscureText: false,
decoration: InputDecoration(
filled: true,
fillColor: Colors.white,
contentPadding: EdgeInsets.only(top: 20),
hintText: AppLocalizations.of(context).details,
border: OutlineInputBorder(
borderSide: BorderSide(
color: Colors.white,
width: 1
),
borderRadius: BorderRadius.circular(20.0),
),
enabledBorder: OutlineInputBorder(
borderSide: BorderSide(
color: Colors.white,
width: 1
),
borderRadius: BorderRadius.circular(20.0),
),
prefix: Container(width: 10.0,),
hintStyle: TextStyle(
fontWeight: FontWeight.w600,
fontSize: 16,
height: 4.0
)
),),
),
InkWell(
onTap: null,
child: Align(
alignment: Alignment.centerRight,
child: Padding(
padding: const EdgeInsets.all(8.0),
child: Container(
width: 50.0,
height: 50.0,
padding: const EdgeInsets.all(8.0),
decoration: BoxDecoration(
border: Border.all(color: Colors.white,width: 4.0),
borderRadius: BorderRadius.circular(2.0)
),
child: Center(
child: Icon(Icons.camera_alt_outlined,color: Colors.white,size: 25.0,),
),
),
),
),
)
],
),
),
),
bottomNavigationBar: BottomAppBar(
child: Container(
child: Wrap(
//mainAxisAlignment: MainAxisAlignment.end,
children: [
Padding(
padding: const EdgeInsets.all(8.0),
child: Align(
alignment: MyApp.getLocale(context).languageCode == "ar" ? Alignment.centerLeft:Alignment.centerRight,
child: Text("(4/5)"),
),
),
Padding(
padding: const EdgeInsets.all(8.0),
child: ClipRRect(
borderRadius: BorderRadius.circular(8.0),
child: LinearProgressIndicator(
minHeight: 10.0,
backgroundColor: Colors.white,
value: 0.80,
valueColor: AlwaysStoppedAnimation<Color>(Colors.orange),
),
),
),
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Padding(
padding: const EdgeInsets.all(8.0),
child: InkWell(
onTap: (){
Navigator.of(context).pushReplacement(MaterialPageRoute(builder: (BuildContext context)=> FirstGiftPage("","")));
},
child: Text(AppLocalizations.of(context).ignore,style: TextStyle(decoration: TextDecoration.underline),)),
),
Padding(
padding: const EdgeInsets.all(8.0),
child: InkWell(
onTap: nextTapped,
child: Container(
width: 80.0,
padding: EdgeInsets.all(8.0),
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(10.0),
gradient: LinearGradient(
colors: [
Color.fromRGBO(246, 76, 77, 1),
Color.fromRGBO(156, 51, 117, 1)
],
begin: Alignment .topRight,
end: Alignment.bottomLeft
)
),
child: Center(child: Text(AppLocalizations.of(context).next, style: TextStyle(color: Colors.white),)),
),
),
)
],
)
],
),
),
),
),
);
}
}
这是错误
════════ 调度程序库捕获的异常══════════════════════════════════════════ ═══════════════════ 在调度程序回调期间引发了以下断言： 子树中有多个英雄共享同一个标签。
在每个要为英雄设置动画的子树（即 PageRoute 子树）中，每个英雄都必须有一个 >唯一的非空标签。 在这种情况下，多个英雄具有以下标签：
这是其中一位违规英雄的子树：Hero 标签： 状态：_HeroState#48fb7 抛出异常时，这是堆栈： #0 英雄._allHeroesFor.inviteHero。 >（包：flutter/src/widgets/heroes.dart:268:11） #1 Hero._allHeroesFor.inviteHero (package:flutter/src/widgets/heroes.dart:279:8) #2 Hero._allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:298:21) #3 SingleChildRenderObjectElement.visitChildren >(package:flutter/src/widgets/framework.dart:6105:14) #4 Hero._allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:311:15) ... ══════════════════════════════════════════════════ ══════════════════════════════════════════════════
【问题讨论】：
-
您是否使用浮动操作按钮>
-
不，甚至没有，甚至没有任何英雄动画