Every time I tap on the ListView Card this error shows 'Exception caught by gesture: Stack Overflow" as seen on this screenshot(https://www.screencast.com/t/udA8NZZ1AqsD)
The problem here is somewhere in the Gesturedetector's onTap code
List of Screenshots Default Navigation PageRoute -> https://www.screencast.com/t/qKZQgaraFi With Just a Plain text called 'test' -> https://www.screencast.com/t/XOxGkANLZEjC Slightly changed Navigation Page Route -> https://www.screencast.com/t/1F82pyQtQ2v9 Gesturedetector with new additional code -> https://www.screencast.com/t/hRefONV3o Code that passes data from firebase -> https://www.screencast.com/t/24gc9zqfxmGX
Result Link: Result #1 -> https://www.screencast.com/t/PmiC5U6S2L Result #2 -> https://www.screencast.com/t/udA8NZZ1AqsD
I have tried the following below
TRY 1 Tried the default Navigation Page Route and the Gesturedetector is working fine. The downside is I can only show text(see the link above With Just a Plain text called 'test') and can't pass data using the provider package flutter as seen on this screenshot
Default Navigation PageRoute
GestureDetector(
behavior: HitTestBehavior.translucent,
onTap: () {
Navigator.push(context, MaterialPageRoute(builder: (context) => ProductDetail()));
},
)
With Just a Plain text called 'test'
Text(
'test',
style: TextStyle(
fontSize: 35.0,
color: Colors.black45,
fontWeight: FontWeight.w700
),
),
Result: see Result #1
TRY 2 Tried the slightly changed Navigation Page Route(see the link 'Slightly changed Navigation Page Route' above) together with the ordinary text(see the link above = With Just a Plain text called 'test')
Navigation PageRoute
GestureDetector(
behavior: HitTestBehavior.translucent,
onTap: () {
Navigator.of(context).push(
MaterialPageRoute (builder: (BuildContext context) {
return ProductDetail();
})
);
},
With Just a Plain text called 'test'
Text(
'test',
style: TextStyle(
fontSize: 35.0,
color: Colors.black45,
fontWeight: FontWeight.w700
),
),
Result: see Result #1
TRY 3 Tried it with a new additional code(see link above 'Gesturedetector with new additional code') together with the ordinary text(see the link above With Just a Plain text called 'test')
Navigation PageRoute
GestureDetector(
behavior: HitTestBehavior.translucent,
onTap: () {
itemNotifier.currentProditem = itemNotifier.itemList[index];
Navigator.of(context).push(
MaterialPageRoute (builder: (BuildContext context) {
return ProductDetail();
})
);
},
),
With Just a Plain text called 'test'
Text(
'test',
style: TextStyle(
fontSize: 35.0,
color: Colors.black45,
fontWeight: FontWeight.w700
),
),
Result: see Result #2
TRY 4 Tried it with a new additional code(see link above 'Gesturedetector with new additional code') together with a code that passes data from firebase(see link above 'Code that passes data from firebase')
Code that Passes data from Firebase
Text(
(itemNotifier.currentProditem.price),
style: TextStyle(
fontSize: 35.0,
color: Colors.black45,
fontWeight: FontWeight.w700
),
),
Result: see Result #2
My Code
Widget build(BuildContext context) {
ItemNotifier itemNotifier = Provider.of<ItemNotifier>(context);
return new Scaffold(
backgroundColor: Color(0xffdcdcdc),
appBar: new AppBar(
centerTitle: true,
title: new Text(
'Discover Products',
style: TextStyle(
fontSize: 26.0,
fontWeight: FontWeight.w600,
),
),
backgroundColor: Color(0xFF352d5a)
),
body: Padding(
padding: EdgeInsets.only(top: 10.0, bottom: 10.0),
child: ListView.builder(
scrollDirection: Axis.vertical,
shrinkWrap: true,
physics: ClampingScrollPhysics(),
itemCount: itemNotifier.itemList.length == null ? 0 : itemNotifier.itemList.length,
itemBuilder: (BuildContext context, index) {
return GestureDetector(
behavior: HitTestBehavior.translucent,
onTap: () {
itemNotifier.currentProditem = itemNotifier.itemList[index];
Navigator.of(context).push(
MaterialPageRoute (builder: (BuildContext context) {
return ProductDetail();
})
);
// Navigator.push(context, MaterialPageRoute(builder: (context) => ProductDetail()));
},
child: Stack(
children: <Widget>[
Container(
margin: EdgeInsets.fromLTRB(40.0, 5.0, 20.0, 5.0),
height: 140.0,
width: double.infinity,
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.circular(20.0),
),
child: Padding(
padding: EdgeInsets.fromLTRB(
100.0, 10.0, 20.0, 20.0),
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
Column(
mainAxisAlignment: MainAxisAlignment
.spaceBetween,
crossAxisAlignment: CrossAxisAlignment
.start,
children: <Widget>[
Row(
mainAxisAlignment: MainAxisAlignment
.spaceBetween,
children: <Widget>[
Text(
(itemNotifier.itemList[index].price),
style: TextStyle(
fontSize: 24.0,
color: Colors.black45,
fontWeight: FontWeight.w700
),
),
IconButton(
icon: Icon(Icons.favorite),
color: Colors.grey.shade400,
onPressed: () {
setState(() {
print('Go to Favorites');
});
},
),
],
),
Container(
width: 280.0,
child: Text(
(itemNotifier.itemList[index].producttitle),
style: TextStyle(
fontSize: 24.0,
fontWeight: FontWeight.bold
),
overflow: TextOverflow.ellipsis,
maxLines: 1,
),
),
SizedBox(
height: 5.0,
),
],
),
Container(
width: 280.0,
child: Text(
(itemNotifier.itemList[index].description),
style: TextStyle(
color: Colors.grey
),
overflow: TextOverflow.ellipsis,
maxLines: 2,
),
),
],
),
),
),
Positioned(
left: 20.0,
top: 15.0,
bottom: 15.0,
child: Container(
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.circular(20.0),
boxShadow: [
BoxShadow(
color: Colors.black26,
offset: Offset(0.0, 2.0),
blurRadius: 6.0,
),
],
),
child: ClipRRect(
borderRadius: BorderRadius.circular(20.0),
child: Image(
width: 110.0,
image: AssetImage(
'image'
),
fit: BoxFit.cover,
),
),
),
),
],
)
);
}
),
),
);
}
}
The problem is you're recursively calling the set method again inside the set method (hence the stack overflow)
set currentProditem(Proditem proditem){
currentProditem = proditem; //forgot the underscore,
// it should be _currentProditem = proditem;
// To change the variables not the setter again
notifylisteners();
}