Ivan ======== Exception caught by scheduler library =====================================================
The following assertion was thrown during a scheduler callback:
There are multiple heroes that share the same tag within a subtree.

Within each subtree for which heroes are to be animated (i.e. a PageRoute subtree), each Hero must have a unique non-null tag.
In this case, multiple heroes had the following tag: assets/images/5.png
Here is the subtree for one of the offending heroes: Hero
tag: assets/images/5.png
state: HeroState#d68d9
When the exception was thrown, this was the stack:
#0 Hero.allHeroesFor.inviteHero.<anonymous closure> (package:flutter/src/widgets/heroes.dart:271:11)
#1 Hero.allHeroesFor.inviteHero (package:flutter/src/widgets/heroes.dart:282:8)
#2 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:301:11)
#3 SingleChildRenderObjectElement.visitChildren (package:flutter/src/widgets/framework.dart:6271:14)
#4 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#5 SingleChildRenderObjectElement.visitChildren (package:flutter/src/widgets/framework.dart:6271:14)
#6 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#7 ComponentElement.visitChildren (package:flutter/src/widgets/framework.dart:4807:14)
#8 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#9 ComponentElement.visitChildren (package:flutter/src/widgets/framework.dart:4807:14)
#10 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#11 ComponentElement.visitChildren (package:flutter/src/widgets/framework.dart:4807:14)
#12 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#13 SingleChildRenderObjectElement.visitChildren (package:flutter/src/widgets/framework.dart:6271:14)
#14 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#15 SingleChildRenderObjectElement.visitChildren (package:flutter/src/widgets/framework.dart:6271:14)
#16 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#17 ComponentElement.visitChildren (package:flutter/src/widgets/framework.dart:4807:14)
#18 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#19 ComponentElement.visitChildren (package:flutter/src/widgets/framework.dart:4807:14)
#20 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#21 ComponentElement.visitChildren (package:flutter/src/widgets/framework.dart:4807:14)
#22 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#23 ComponentElement.visitChildren (package:flutter/src/widgets/framework.dart:4807:14)
#24 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#25 List.forEach (dart:core-patch/growable_array.dart:433:8)
#26 SliverMultiBoxAdaptorElement.visitChildren (package:flutter/src/widgets/sliver.dart:1442:52)
#27 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#28 ComponentElement.visitChildren (package:flutter/src/widgets/framework.dart:4807:14)
#29 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#30 SingleChildRenderObjectElement.visitChildren (package:flutter/src/widgets/framework.dart:6271:14)
#31 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#32 MultiChildRenderObjectElement.visitChildren (package:flutter/src/widgets/framework.dart:6386:16)
#33 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#34 SingleChildRenderObjectElement.visitChildren (package:flutter/src/widgets/framework.dart:6271:14)
#35 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#36 SingleChildRenderObjectElement.visitChildren (package:flutter/src/widgets/framework.dart:6271:14)
#37 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#38 SingleChildRenderObjectElement.visitChildren (package:flutter/src/widgets/framework.dart:6271:14)
#39 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#40 SingleChildRenderObjectElement.visitChildren (package:flutter/src/widgets/framework.dart:6271:14)
#41 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#42 ComponentElement.visitChildren (package:flutter/src/widgets/framework.dart:4807:14)
#43 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#44 SingleChildRenderObjectElement.visitChildren (package:flutter/src/widgets/framework.dart:6271:14)
#45 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#46 ComponentElement.visitChildren (package:flutter/src/widgets/framework.dart:4807:14)
#47 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#48 SingleChildRenderObjectElement.visitChildren (package:flutter/src/widgets/framework.dart:6271:14)
#49 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#50 ComponentElement.visitChildren (package:flutter/src/widgets/framework.dart:4807:14)
#51 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#52 SingleChildRenderObjectElement.visitChildren (package:flutter/src/widgets/framework.dart:6271:14)
#53 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#54 SingleChildRenderObjectElement.visitChildren (package:flutter/src/widgets/framework.dart:6271:14)
#55 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#56 SingleChildRenderObjectElement.visitChildren (package:flutter/src/widgets/framework.dart:6271:14)
#57 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#58 ComponentElement.visitChildren (package:flutter/src/widgets/framework.dart:4807:14)
#59 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#60 ComponentElement.visitChildren (package:flutter/src/widgets/framework.dart:4807:14)
#61 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#62 ComponentElement.visitChildren (package:flutter/src/widgets/framework.dart:4807:14)
#63 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#64 ComponentElement.visitChildren (package:flutter/src/widgets/framework.dart:4807:14)
#65 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#66 SingleChildRenderObjectElement.visitChildren (package:flutter/src/widgets/framework.dart:6271:14)
#67 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#68 SingleChildRenderObjectElement.visitChildren (package:flutter/src/widgets/framework.dart:6271:14)
#69 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#70 ComponentElement.visitChildren (package:flutter/src/widgets/framework.dart:4807:14)
#71 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#72 MultiChildRenderObjectElement.visitChildren (package:flutter/src/widgets/framework.dart:6386:16)
#73 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#74 SingleChildRenderObjectElement.visitChildren (package:flutter/src/widgets/framework.dart:6271:14)
#75 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#76 SingleChildRenderObjectElement.visitChildren (package:flutter/src/widgets/framework.dart:6271:14)
#77 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#78 SingleChildRenderObjectElement.visitChildren (package:flutter/src/widgets/framework.dart:6271:14)
#79 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#80 SingleChildRenderObjectElement.visitChildren (package:flutter/src/widgets/framework.dart:6271:14)
#81 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#82 SingleChildRenderObjectElement.visitChildren (package:flutter/src/widgets/framework.dart:6271:14)
#83 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#84 ComponentElement.visitChildren (package:flutter/src/widgets/framework.dart:4807:14)
#85 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#86 SingleChildRenderObjectElement.visitChildren (package:flutter/src/widgets/framework.dart:6271:14)
#87 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#88 ComponentElement.visitChildren (package:flutter/src/widgets/framework.dart:4807:14)
#89 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#90 SingleChildRenderObjectElement.visitChildren (package:flutter/src/widgets/framework.dart:6271:14)
#91 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#92 ComponentElement.visitChildren (package:flutter/src/widgets/framework.dart:4807:14)
#93 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#94 SingleChildRenderObjectElement.visitChildren (package:flutter/src/widgets/framework.dart:6271:14)
#95 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#96 SingleChildRenderObjectElement.visitChildren (package:flutter/src/widgets/framework.dart:6271:14)
#97 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#98 SingleChildRenderObjectElement.visitChildren (package:flutter/src/widgets/framework.dart:6271:14)
#99 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#100 ComponentElement.visitChildren (package:flutter/src/widgets/framework.dart:4807:14)
#101 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#102 ComponentElement.visitChildren (package:flutter/src/widgets/framework.dart:4807:14)
#103 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#104 ComponentElement.visitChildren (package:flutter/src/widgets/framework.dart:4807:14)
#105 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#106 ComponentElement.visitChildren (package:flutter/src/widgets/framework.dart:4807:14)
#107 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#108 ComponentElement.visitChildren (package:flutter/src/widgets/framework.dart:4807:14)
#109 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#110 ComponentElement.visitChildren (package:flutter/src/widgets/framework.dart:4807:14)
#111 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#112 MultiChildRenderObjectElement.visitChildren (package:flutter/src/widgets/framework.dart:6386:16)
#113 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#114 ComponentElement.visitChildren (package:flutter/src/widgets/framework.dart:4807:14)
#115 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#116 ComponentElement.visitChildren (package:flutter/src/widgets/framework.dart:4807:14)
#117 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#118 ComponentElement.visitChildren (package:flutter/src/widgets/framework.dart:4807:14)
#119 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#120 MultiChildRenderObjectElement.visitChildren (package:flutter/src/widgets/framework.dart:6386:16)
#121 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#122 ComponentElement.visitChildren (package:flutter/src/widgets/framework.dart:4807:14)
#123 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#124 ComponentElement.visitChildren (package:flutter/src/widgets/framework.dart:4807:14)
#125 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#126 ComponentElement.visitChildren (package:flutter/src/widgets/framework.dart:4807:14)
#127 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#128 SingleChildRenderObjectElement.visitChildren (package:flutter/src/widgets/framework.dart:6271:14)
#129 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#130 ComponentElement.visitChildren (package:flutter/src/widgets/framework.dart:4807:14)
#131 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#132 SingleChildRenderObjectElement.visitChildren (package:flutter/src/widgets/framework.dart:6271:14)
#133 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#134 ComponentElement.visitChildren (package:flutter/src/widgets/framework.dart:4807:14)
#135 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#136 ComponentElement.visitChildren (package:flutter/src/widgets/framework.dart:4807:14)
#137 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#138 ComponentElement.visitChildren (package:flutter/src/widgets/framework.dart:4807:14)
#139 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#140 ComponentElement.visitChildren (package:flutter/src/widgets/framework.dart:4807:14)
#141 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#142 ComponentElement.visitChildren (package:flutter/src/widgets/framework.dart:4807:14)
#143 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#144 ComponentElement.visitChildren (package:flutter/src/widgets/framework.dart:4807:14)
#145 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#146 ComponentElement.visitChildren (package:flutter/src/widgets/framework.dart:4807:14)
#147 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#148 ComponentElement.visitChildren (package:flutter/src/widgets/framework.dart:4807:14)
#149 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#150 SingleChildRenderObjectElement.visitChildren (package:flutter/src/widgets/framework.dart:6271:14)
#151 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#152 ComponentElement.visitChildren (package:flutter/src/widgets/framework.dart:4807:14)
#153 Hero.allHeroesFor.visitor (package:flutter/src/widgets/heroes.dart:316:15)
#154 SingleChildRenderObjectElement.visitChildren (package:flutter/src/widgets/framework.dart:6271:14)
#155 Element.visitChildElements (package:flutter/src/widgets/framework.dart:3403:5)
#156 Hero.allHeroesFor (package:flutter/src/widgets/heroes.dart:319:13)
#157 HeroController.startHeroTransition (package:flutter/src/widgets/heroes.dart:927:14)
#158 HeroController.maybeStartHeroTransition.<anonymous closure> (package:flutter/src/widgets/heroes.dart:885:11)
#159 SchedulerBinding.invokeFrameCallback (package:flutter/src/scheduler/binding.dart:1144:15)
#160 SchedulerBinding.handleDrawFrame (package:flutter/src/scheduler/binding.dart:1089:9)
#161 SchedulerBinding.handleDrawFrame (package:flutter/src/scheduler/binding.dart:995:5)
#165 invoke (dart:ui/hooks.dart:151:10)
#166 PlatformDispatcher.drawFrame (dart:ui/platform_dispatcher.dart:308:5)
#167 _drawFrame (dart:ui/hooks.dart:115:31)
(elided 3 frames from dart:async)

hata bu.

There are multiple heroes that share the same tag within a subtree.

Ivan kodu nasıl atayım

fturan00 Copy-Paste?

tabi şöyle atayım

main.dart

import ‘package:flutter/material.dart’;
import ‘package:myproject/screens/home_screen.dart’;

void main() {
runApp(const MyApp());
}

class MyApp extends StatelessWidget {
const MyApp({Key? key}) : super(key: key);

@override
Widget build(BuildContext context) {
return MaterialApp(
title: ‘Kahramanlar’,
debugShowCheckedModeBanner: false,
theme: ThemeData.light(),
darkTheme: ThemeData.dark(),
home: const HomeScreen(),
);
}
}

ana ekran

`import ‘package:flutter/material.dart’;
import ‘package:myproject/widgets/image_list_view.dart’;

class HomeScreen extends StatelessWidget {
const HomeScreen({Key? key}) : super(key: key);

@override
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: const Color(0xff010101),
body: Stack(
children: [
Positioned.fill(
child: SingleChildScrollView(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: const [
SizedBox(
height: 60,
),
ImageListView(
startIndex: 5,
duration: 25,
),
SizedBox(
height: 8,
),
ImageListView(
startIndex: 1,
duration: 50,
),
SizedBox(
height: 8,
),
ImageListView(
startIndex: 2,
duration: 32,
),
],
),
),
),
Positioned(
bottom: 20,
left: 14,
right: 24,
child: Container(
height: 210,
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
const Text(
“league of Legends kahramanlarının öykülerini keşfet!”,
style: TextStyle(
fontWeight: FontWeight.bold,
fontSize: 16,
color: Colors.white,
),
),
SizedBox(
height: 12,
),
const Spacer(),
Container(
height: 40,
width: 140,
alignment: Alignment.center,
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(10),
color: Colors.yellow,
),
child: Text(
“Keşfet”,
style: TextStyle(
fontWeight: FontWeight.bold,
fontSize: 15,
),
),
),
],
),
),
),
],
),
);
}
}
`

ana ekrandaki image listdeki imagelere tıkladığında açılan ekran, unique yapmak istediğim ögeler

`import ‘package:flutter/material.dart’;
import ‘package:myproject/widgets/blur_container.dart’;

class HeroScreen extends StatelessWidget {
const HeroScreen({Key? key, required this.image}) : super(key: key);

final String image;

@override
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: Colors.yellow,
body: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Stack(
children: [
Hero(tag: image, child: Image.asset(image)),
Positioned(
right: 30,
bottom: 30,
child: Container(
width: 75,
height: 28,
alignment: Alignment.center,
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(8),
color: Colors.blueAccent,
),
child: const Text(
“Lulu”,
style: TextStyle(
fontSize: 20,
fontWeight: FontWeight.bold,
),
),
),
),
],
),
SizedBox(
height: 10,
),
Padding(
padding: const EdgeInsets.symmetric(horizontal: 10.0),
child: Text(
“Muhtemelen Lulu kendi davulunun sesini çalmak için Lig’de yer alan diğer şampiyonlardan daha istekli hareket etmiştir. Gençlik yıllarını Bandle şehrinde, çoğu kez ormanda tek başına dolaşarak veya hayal kurarak geçirmiştir. O anti-sosyal bir kişiliğe sahip değildi; sadece gün be gün Bandle şehrinde koşuşturmak, onun hayal dünyası ile rekabet edemedi.”,
style: TextStyle(fontSize: 18),
),
)
],
),
);
}
}
`

burada ana ekrandaki image list görünümü, otomatik scroll yapısı var burada

import ‘dart:async’;
import ‘dart:math’;

import ‘package:flutter/material.dart’;

import ‘../screens/hero_screen.dart’;

class ImageListView extends StatefulWidget {
const ImageListView({Key? key, required this.startIndex, this.duration = 30})
: super(key: key);

final int duration;

final int startIndex;

@override
_ImageListViewState createState() => _ImageListViewState();
}

class _ImageListViewState extends State<ImageListView> {
late ScrollController _scrollController;

@override
void initState() {
super.initState();
_scrollController = ScrollController();

_scrollController.addListener(() {
  if (_scrollController.position.atEdge) {
    _autoScroll();
  }
});

WidgetsBinding.instance?.addPostFrameCallback((_) {
  _autoScroll();
});

}

_autoScroll() {
final _currentScrollPosition = _scrollController.offset;
final _scrollEndPosition = _scrollController.position.maxScrollExtent;
scheduleMicrotask(() {
_scrollController.animateTo(
_currentScrollPosition == _scrollEndPosition ? 0 : _scrollEndPosition,
duration: Duration(seconds: widget.duration),
curve: Curves.linear,
);
});
}

@override
Widget build(BuildContext context) {
return Transform.rotate(
angle: 1.96 * 3.14,
child: SizedBox(
height: 130,
child: ListView.builder(
controller: _scrollController,
itemCount: 10,
scrollDirection: Axis.horizontal,
itemBuilder: (BuildContext context, int index) {
return _ImageTile(
image: “assets/images/${widget.startIndex + index}.png”);
},
),
),
);
}
}

class _ImageTile extends StatelessWidget {
const _ImageTile({Key? key, required this.image}) : super(key: key);
final String image;

@override
Widget build(BuildContext context) {
return GestureDetector(
onTap: () {
Navigator.push(
context,
MaterialPageRoute(builder: (_) => HeroScreen(image: image)),
);
},
child: Hero(
tag: image,
child: Image.asset(
image,
width: 130,
),
),
);
}
}

Bu şekilde anlaması güç oluyor hocam.
Asıl hata aldığınız yeri bir görselle eklerseniz, yanına da github link koyarsanız daha iyi olur. Bu şekilde biraz zor olacaktır.