Animation library is giving me this error about lifecycle state - flutter

Question

Animation library is giving me this error about lifecycle state-- 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4519 pos 12: '_lifecycleState != _ElementLifecycle.defunct': is not true. is was getting this error when i used animation controller.
After the error my flutter application crashed and i have to reload everytime.
// ignore_for_file: depend_on_referenced_packages, sized_box_for_whitespace, avoid_print
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'package:habbit_app/controllers/timer_tab_controller.dart';
import 'package:habbit_app/screens/timer/set_timer_component.dart';
import 'package:flutter_ringtone_player/flutter_ringtone_player.dart';
import 'package:habbit_app/widgets/text_widget/label_text.dart';
class TimerTab extends StatefulWidget {
const TimerTab({super.key});
#override
State<TimerTab> createState() => _TimerTabState();
}
class _TimerTabState extends State<TimerTab> with TickerProviderStateMixin {
AnimationController? animationController;
TimerTabController tabController =
Get.put(TimerTabController(), permanent: false);
late TabController _controller;
bool isPlaying = false;
// int get countText2 {
// int count = tabController.totalSeconds;
// return;
// }
String get countText {
Duration count =
animationController!.duration! * animationController!.value;
return animationController!.isDismissed
? '${animationController!.duration!.inHours}:${(animationController!.duration!.inMinutes % 60).toString().padLeft(2, '0')}:${(animationController!.duration!.inSeconds % 60).toString().padLeft(2, '0')}'
: '${count.inHours}:${(count.inMinutes % 60).toString().padLeft(2, '0')}:${(count.inSeconds % 60).toString().padLeft(2, '0')}';
}
#override
void dispose() {
animationController!.dispose();
super.dispose();
}
double progress = 1.0;
void notifiy() {
if (countText == "0:00:00") {
FlutterRingtonePlayer.playNotification();
}
}
#override
void initState() {
// ignore: todo
// TODO: implement initState
TimerTabController tabController =
Get.put(TimerTabController(), permanent: false);
super.initState();
_controller = TabController(length: 3, vsync: this);
_controller.addListener(() {
tabController.tabIndex.value = _controller.index;
// print(tabController.tabIndex.value);
});
super.initState();
animationController = AnimationController(
vsync: this, duration: Duration(seconds: tabController.totalSeconds));
animationController!.addListener(() {
notifiy();
if (animationController!.isAnimating) {
setState(() {
progress = animationController!.value;
});
} else {
setState(() {
progress = 1.0;
isPlaying = false;
});
}
});
}
#override
Widget build(BuildContext context) {
var color = Theme.of(context);
return Obx(
() => tabController.isFirst.value
? SetTimerComponent(
changeAnimation: () {
animationController!.duration =
Duration(seconds: tabController.totalSeconds);
tabController.changeFirst();
},
)
: Column(
mainAxisAlignment: MainAxisAlignment.center,
crossAxisAlignment: CrossAxisAlignment.start,
children: [
// start timer screen
Container(
height: 350,
width: MediaQuery.of(context).size.width,
// color: color.cardColor,
child: Column(children: [
Stack(
alignment: Alignment.center,
children: [
SizedBox(
width: 300,
height: 300,
child: CircularProgressIndicator(
color: color.primaryColor,
backgroundColor:
color.disabledColor.withOpacity(0.6),
value: progress,
strokeWidth: 10,
)),
GestureDetector(
onTap: () {
if (animationController!.isDismissed) {
showModalBottomSheet(
context: context,
builder: (context) => Container(
height: 300,
child: CupertinoTimerPicker(
initialTimerDuration:
animationController!.duration!,
backgroundColor:
color.backgroundColor,
onTimerDurationChanged: (time) {
setState(() {
animationController!.duration =
time;
});
},
),
));
}
},
child: AnimatedBuilder(
animation: animationController!,
builder: ( context, child) => Text(
countText,
style: TextStyle(
fontSize: 60,
fontWeight: FontWeight.bold,
color: color.primaryColor),
),
),
),
],
),
]),
),
Row(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: [
GestureDetector(
onTap: () {
print(tabController.totalSeconds);
if (animationController!.isAnimating) {
animationController!.stop();
setState(() {
isPlaying = false;
});
} else {
animationController!.reverse(
from: animationController!.value == 0
? 1.0
: animationController!.value);
setState(() {
isPlaying = true;
});
}
},
child: Container(
height: 35,
width: 90,
decoration: BoxDecoration(
borderRadius:
const BorderRadius.all(Radius.circular(30)),
color: color.primaryColor),
child: Center(
child: LabelText(
text: isPlaying == true ? "PAUSE" : "RESUME",
isBold: true,
isColor: true,
color: Colors.white,
)),
),
),
GestureDetector(
onTap: () {
animationController!.reset();
tabController.currentvalueHour.value = 0;
tabController.currentvalueMin.value = 0;
tabController.currentvalueSec.value = 0;
setState(() {
isPlaying = false;
});
tabController.changeFirst2();
},
child: Container(
height: 35,
width: 90,
decoration: BoxDecoration(
borderRadius:
const BorderRadius.all(Radius.circular(30)),
color: color.disabledColor.withOpacity(0.5)),
child: const Center(
child: LabelText(
text: "DELETE",
isColor: true,
color: Colors.white,
isBold: true,
)),
),
)
],
)
],
),
);
}
}