How to use setState when call openDrawer?
0
In my drawer, there are two actions, if user logined, it will show the user information, otherwise will show popup the login screen, so I want to call the setState when I open the drawer as below:
clickLeftMenu: (BuildContext mainContext) {
LoginInfo.checkLogin(mainContext).then((islogin) {
print(islogin.toString());
if (!islogin)
showLogin(mainContext, true);
else{
Scaffold.of(mainContext).openDrawer();
setState(() {
//I want to update the user login info for rebuild screen for show
loginInfo = LoginInfo.getInfo();
});
}
});
},
show the user info with loginInfo object in drawer:
ListTile(
leading: Icon(Icons.account_circle,
color: Theme.of(context).primaryColor,
size: setWidth(context, 8.0)),
title: Text(
loginInfo.name ?? '',
//loginInfo. != null ? loginInfo.email : '',
style: TextStyle(
fontSize: 20.0,
color: Theme.of(context).primaryColor,
),
),
subtitle: Text(
loginInfo.email ?? '',
style: TextStyle(
fontSize: 10.0,
//color: this.primaryColor,
),
),
),
but it failed when I called that, show below error:
setState() or markNeedsBuild() called when widget tree was locked.
This _ModalScope<dynamic> widget cannot be marked as needing to build because the framework is locked
I tried many of ways but still failed, do you have any ideas or other ways can do that?
Thanks!!
flutter drawer asked Nov 24 '18 at 3:58
WinsonWinson
261210
add a comment |
0
In my drawer, there are two actions, if user logined, it will show the user information, otherwise will show popup the login screen, so I want to call the setState when I open the drawer as below:
clickLeftMenu: (BuildContext mainContext) {
LoginInfo.checkLogin(mainContext).then((islogin) {
print(islogin.toString());
if (!islogin)
showLogin(mainContext, true);
else{
Scaffold.of(mainContext).openDrawer();
setState(() {
//I want to update the user login info for rebuild screen for show
loginInfo = LoginInfo.getInfo();
});
}
});
},
show the user info with loginInfo object in drawer:
ListTile(
leading: Icon(Icons.account_circle,
color: Theme.of(context).primaryColor,
size: setWidth(context, 8.0)),
title: Text(
loginInfo.name ?? '',
//loginInfo. != null ? loginInfo.email : '',
style: TextStyle(
fontSize: 20.0,
color: Theme.of(context).primaryColor,
),
),
subtitle: Text(
loginInfo.email ?? '',
style: TextStyle(
fontSize: 10.0,
//color: this.primaryColor,
),
),
),
but it failed when I called that, show below error:
setState() or markNeedsBuild() called when widget tree was locked.
This _ModalScope<dynamic> widget cannot be marked as needing to build because the framework is locked
I tried many of ways but still failed, do you have any ideas or other ways can do that?
Thanks!!
flutter drawer asked Nov 24 '18 at 3:58
WinsonWinson
261210
add a comment |
0
0
0
In my drawer, there are two actions, if user logined, it will show the user information, otherwise will show popup the login screen, so I want to call the setState when I open the drawer as below:
clickLeftMenu: (BuildContext mainContext) {
LoginInfo.checkLogin(mainContext).then((islogin) {
print(islogin.toString());
if (!islogin)
showLogin(mainContext, true);
else{
Scaffold.of(mainContext).openDrawer();
setState(() {
//I want to update the user login info for rebuild screen for show
loginInfo = LoginInfo.getInfo();
});
}
});
},
show the user info with loginInfo object in drawer:
ListTile(
leading: Icon(Icons.account_circle,
color: Theme.of(context).primaryColor,
size: setWidth(context, 8.0)),
title: Text(
loginInfo.name ?? '',
//loginInfo. != null ? loginInfo.email : '',
style: TextStyle(
fontSize: 20.0,
color: Theme.of(context).primaryColor,
),
),
subtitle: Text(
loginInfo.email ?? '',
style: TextStyle(
fontSize: 10.0,
//color: this.primaryColor,
),
),
),
but it failed when I called that, show below error:
setState() or markNeedsBuild() called when widget tree was locked.
This _ModalScope<dynamic> widget cannot be marked as needing to build because the framework is locked
I tried many of ways but still failed, do you have any ideas or other ways can do that?
Thanks!!
flutter drawer asked Nov 24 '18 at 3:58
WinsonWinson
261210
In my drawer, there are two actions, if user logined, it will show the user information, otherwise will show popup the login screen, so I want to call the setState when I open the drawer as below:
clickLeftMenu: (BuildContext mainContext) {
LoginInfo.checkLogin(mainContext).then((islogin) {
print(islogin.toString());
if (!islogin)
showLogin(mainContext, true);
else{
Scaffold.of(mainContext).openDrawer();
setState(() {
//I want to update the user login info for rebuild screen for show
loginInfo = LoginInfo.getInfo();
});
}
});
},
show the user info with loginInfo object in drawer:
ListTile(
leading: Icon(Icons.account_circle,
color: Theme.of(context).primaryColor,
size: setWidth(context, 8.0)),
title: Text(
loginInfo.name ?? '',
//loginInfo. != null ? loginInfo.email : '',
style: TextStyle(
fontSize: 20.0,
color: Theme.of(context).primaryColor,
),
),
subtitle: Text(
loginInfo.email ?? '',
style: TextStyle(
fontSize: 10.0,
//color: this.primaryColor,
),
),
),
but it failed when I called that, show below error:
setState() or markNeedsBuild() called when widget tree was locked.
This _ModalScope<dynamic> widget cannot be marked as needing to build because the framework is locked
I tried many of ways but still failed, do you have any ideas or other ways can do that?
Thanks!!
flutter drawer flutter drawer asked Nov 24 '18 at 3:58
WinsonWinson
261210
asked Nov 24 '18 at 3:58
WinsonWinson
261210
asked Nov 24 '18 at 3:58
WinsonWinson
261210
asked Nov 24 '18 at 3:58
WinsonWinson
261210
asked Nov 24 '18 at 3:58
WinsonWinson
261210
261210
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
0
Builder(
builder: (BuildContext context) {
return IconButton(
icon: const Icon(Icons.menu),
onPressed: () {
Scaffold.of(context).openDrawer();
},
tooltip: MaterialLocalizations.of(context).openAppDrawerTooltip,
);
},
),
edited Dec 7 '18 at 3:54
TeeKea
3,20441630
answered Dec 7 '18 at 3:11
陈英有陈英有
1
sorry, can you explain how's your code work? I just use another way for solved my issue, thanks!
– Winson
Dec 17 '18 at 8:44
How to use the parameter "mainContext" directly? The context does not know that there is a Scaffold control. That's why WidgetBuilder is used, and you won't know the Scaffold control until "statelesswidget.build or state.build." is completed。
– 陈英有
Dec 18 '18 at 9:11
yes, so I use a GlobalKey for that, and change the async method to sync
– Winson
Dec 18 '18 at 12:33
add a comment |
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1 Answer
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active
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votes
1 Answer
1
active
oldest
votes
active
oldest
votes
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oldest
votes
0
Builder(
builder: (BuildContext context) {
return IconButton(
icon: const Icon(Icons.menu),
onPressed: () {
Scaffold.of(context).openDrawer();
},
tooltip: MaterialLocalizations.of(context).openAppDrawerTooltip,
);
},
),
edited Dec 7 '18 at 3:54
TeeKea
3,20441630
answered Dec 7 '18 at 3:11
陈英有陈英有
1
sorry, can you explain how's your code work? I just use another way for solved my issue, thanks!
– Winson
Dec 17 '18 at 8:44
How to use the parameter "mainContext" directly? The context does not know that there is a Scaffold control. That's why WidgetBuilder is used, and you won't know the Scaffold control until "statelesswidget.build or state.build." is completed。
– 陈英有
Dec 18 '18 at 9:11
yes, so I use a GlobalKey for that, and change the async method to sync
– Winson
Dec 18 '18 at 12:33
add a comment |
0
Builder(
builder: (BuildContext context) {
return IconButton(
icon: const Icon(Icons.menu),
onPressed: () {
Scaffold.of(context).openDrawer();
},
tooltip: MaterialLocalizations.of(context).openAppDrawerTooltip,
);
},
),
edited Dec 7 '18 at 3:54
TeeKea
3,20441630
answered Dec 7 '18 at 3:11
陈英有陈英有
1
sorry, can you explain how's your code work? I just use another way for solved my issue, thanks!
– Winson
Dec 17 '18 at 8:44
How to use the parameter "mainContext" directly? The context does not know that there is a Scaffold control. That's why WidgetBuilder is used, and you won't know the Scaffold control until "statelesswidget.build or state.build." is completed。
– 陈英有
Dec 18 '18 at 9:11
yes, so I use a GlobalKey for that, and change the async method to sync
– Winson
Dec 18 '18 at 12:33
add a comment |
0
0
0
Builder(
builder: (BuildContext context) {
return IconButton(
icon: const Icon(Icons.menu),
onPressed: () {
Scaffold.of(context).openDrawer();
},
tooltip: MaterialLocalizations.of(context).openAppDrawerTooltip,
);
},
),
edited Dec 7 '18 at 3:54
TeeKea
3,20441630
answered Dec 7 '18 at 3:11
陈英有陈英有
1
Builder(
builder: (BuildContext context) {
return IconButton(
icon: const Icon(Icons.menu),
onPressed: () {
Scaffold.of(context).openDrawer();
},
tooltip: MaterialLocalizations.of(context).openAppDrawerTooltip,
);
},
),
edited Dec 7 '18 at 3:54
TeeKea
3,20441630
answered Dec 7 '18 at 3:11
陈英有陈英有
1
edited Dec 7 '18 at 3:54
TeeKea
3,20441630
edited Dec 7 '18 at 3:54
TeeKea
3,20441630
edited Dec 7 '18 at 3:54
TeeKea
3,20441630
3,20441630
answered Dec 7 '18 at 3:11
陈英有陈英有
1
answered Dec 7 '18 at 3:11
陈英有陈英有
1
answered Dec 7 '18 at 3:11
陈英有陈英有
1
1
sorry, can you explain how's your code work? I just use another way for solved my issue, thanks!
– Winson
Dec 17 '18 at 8:44
How to use the parameter "mainContext" directly? The context does not know that there is a Scaffold control. That's why WidgetBuilder is used, and you won't know the Scaffold control until "statelesswidget.build or state.build." is completed。
– 陈英有
Dec 18 '18 at 9:11
yes, so I use a GlobalKey for that, and change the async method to sync
– Winson
Dec 18 '18 at 12:33
add a comment |
sorry, can you explain how's your code work? I just use another way for solved my issue, thanks!
– Winson
Dec 17 '18 at 8:44
How to use the parameter "mainContext" directly? The context does not know that there is a Scaffold control. That's why WidgetBuilder is used, and you won't know the Scaffold control until "statelesswidget.build or state.build." is completed。
– 陈英有
Dec 18 '18 at 9:11
yes, so I use a GlobalKey for that, and change the async method to sync
– Winson
Dec 18 '18 at 12:33
sorry, can you explain how's your code work? I just use another way for solved my issue, thanks!
– Winson
Dec 17 '18 at 8:44
sorry, can you explain how's your code work? I just use another way for solved my issue, thanks!
– Winson
Dec 17 '18 at 8:44
How to use the parameter "mainContext" directly? The context does not know that there is a Scaffold control. That's why WidgetBuilder is used, and you won't know the Scaffold control until "statelesswidget.build or state.build." is completed。
– 陈英有
Dec 18 '18 at 9:11
How to use the parameter "mainContext" directly? The context does not know that there is a Scaffold control. That's why WidgetBuilder is used, and you won't know the Scaffold control until "statelesswidget.build or state.build." is completed。
– 陈英有
Dec 18 '18 at 9:11
yes, so I use a GlobalKey for that, and change the async method to sync
– Winson
Dec 18 '18 at 12:33
yes, so I use a GlobalKey for that, and change the async method to sync
– Winson
Dec 18 '18 at 12:33
add a comment |
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