Getting parent object info from Flutter app
0
I’m creating mobile application with Flutter.
This application has two forms (screens).
For example:
class MainScreen extends StatelessWidget {
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AdvertAppBar(context),
body: Container(…),
),
);
}
}
And
class ListScreen extends StatelessWidget {
// This widget is the root of your application.
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AdvertAppBar(context),
body: Container(…),
),
);
}
}
As you could see I’m using shared appBar which instantiates from external class (AdvertAppBar).
Is there any way to know from appBar class what the class of parent object (MainScreen or ListScreen)?
dart
flutter asked Jan 2 at 12:21
Alex ZhulinAlex Zhulin
4921120
add a comment |
0
I’m creating mobile application with Flutter.
This application has two forms (screens).
For example:
class MainScreen extends StatelessWidget {
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AdvertAppBar(context),
body: Container(…),
),
);
}
}
And
class ListScreen extends StatelessWidget {
// This widget is the root of your application.
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AdvertAppBar(context),
body: Container(…),
),
);
}
}
As you could see I’m using shared appBar which instantiates from external class (AdvertAppBar).
Is there any way to know from appBar class what the class of parent object (MainScreen or ListScreen)?
dart
flutter asked Jan 2 at 12:21
Alex ZhulinAlex Zhulin
4921120
You may be able to do this using the inheritedWidgetOfExactType method but it might be better if you simply pass data into yourAdvertAppBarclass. What exactly are you trying to acheive?
– Jordan Davies
Jan 2 at 13:15
did you context.widget.runtimeType
– Ahmed
Jan 2 at 13:18
@JordanDavies From MainScreen I want to call ListScreen(Navigator.push(context, MaterialPageRoute(builder: (context) => ListScreen()),);), but fromListScreenI want only refresh content of theListScreen. Yeah, I can pass some parameter (say current form name) into AdvertAppBar constructor, but I think is there some more appropriate approach?
– Alex Zhulin
Jan 2 at 13:34
From what I understood from your question is that you are trying to only load the content of yourListViewwidget without reloading yourappBaram I right ?
– Ali Hussam
Jan 2 at 17:43
add a comment |
0
0
0
1
I’m creating mobile application with Flutter.
This application has two forms (screens).
For example:
class MainScreen extends StatelessWidget {
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AdvertAppBar(context),
body: Container(…),
),
);
}
}
And
class ListScreen extends StatelessWidget {
// This widget is the root of your application.
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AdvertAppBar(context),
body: Container(…),
),
);
}
}
As you could see I’m using shared appBar which instantiates from external class (AdvertAppBar).
Is there any way to know from appBar class what the class of parent object (MainScreen or ListScreen)?
dart
flutter asked Jan 2 at 12:21
Alex ZhulinAlex Zhulin
4921120
I’m creating mobile application with Flutter.
This application has two forms (screens).
For example:
class MainScreen extends StatelessWidget {
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AdvertAppBar(context),
body: Container(…),
),
);
}
}
And
class ListScreen extends StatelessWidget {
// This widget is the root of your application.
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AdvertAppBar(context),
body: Container(…),
),
);
}
}
As you could see I’m using shared appBar which instantiates from external class (AdvertAppBar).
Is there any way to know from appBar class what the class of parent object (MainScreen or ListScreen)?
dart
flutter dart
flutter asked Jan 2 at 12:21
Alex ZhulinAlex Zhulin
4921120
asked Jan 2 at 12:21
Alex ZhulinAlex Zhulin
4921120
asked Jan 2 at 12:21
Alex ZhulinAlex Zhulin
4921120
asked Jan 2 at 12:21
Alex ZhulinAlex Zhulin
4921120
asked Jan 2 at 12:21
Alex ZhulinAlex Zhulin
4921120
4921120
You may be able to do this using the inheritedWidgetOfExactType method but it might be better if you simply pass data into yourAdvertAppBarclass. What exactly are you trying to acheive?
– Jordan Davies
Jan 2 at 13:15
did you context.widget.runtimeType
– Ahmed
Jan 2 at 13:18
@JordanDavies From MainScreen I want to call ListScreen(Navigator.push(context, MaterialPageRoute(builder: (context) => ListScreen()),);), but fromListScreenI want only refresh content of theListScreen. Yeah, I can pass some parameter (say current form name) into AdvertAppBar constructor, but I think is there some more appropriate approach?
– Alex Zhulin
Jan 2 at 13:34
From what I understood from your question is that you are trying to only load the content of yourListViewwidget without reloading yourappBaram I right ?
– Ali Hussam
Jan 2 at 17:43
add a comment |
You may be able to do this using the inheritedWidgetOfExactType method but it might be better if you simply pass data into yourAdvertAppBarclass. What exactly are you trying to acheive?
– Jordan Davies
Jan 2 at 13:15
did you context.widget.runtimeType
– Ahmed
Jan 2 at 13:18
@JordanDavies From MainScreen I want to call ListScreen(Navigator.push(context, MaterialPageRoute(builder: (context) => ListScreen()),);), but fromListScreenI want only refresh content of theListScreen. Yeah, I can pass some parameter (say current form name) into AdvertAppBar constructor, but I think is there some more appropriate approach?
– Alex Zhulin
Jan 2 at 13:34
From what I understood from your question is that you are trying to only load the content of yourListViewwidget without reloading yourappBaram I right ?
– Ali Hussam
Jan 2 at 17:43
You may be able to do this using the inheritedWidgetOfExactType method but it might be better if you simply pass data into your
AdvertAppBar class. What exactly are you trying to acheive?– Jordan Davies
Jan 2 at 13:15
You may be able to do this using the inheritedWidgetOfExactType method but it might be better if you simply pass data into your
AdvertAppBar class. What exactly are you trying to acheive?– Jordan Davies
Jan 2 at 13:15
did you context.widget.runtimeType
– Ahmed
Jan 2 at 13:18
did you context.widget.runtimeType
– Ahmed
Jan 2 at 13:18
@JordanDavies From MainScreen I want to call ListScreen
(Navigator.push(context, MaterialPageRoute(builder: (context) => ListScreen()),); ), but from ListScreen I want only refresh content of the ListScreen. Yeah, I can pass some parameter (say current form name) into AdvertAppBar constructor, but I think is there some more appropriate approach?– Alex Zhulin
Jan 2 at 13:34
@JordanDavies From MainScreen I want to call ListScreen
(Navigator.push(context, MaterialPageRoute(builder: (context) => ListScreen()),); ), but from ListScreen I want only refresh content of the ListScreen. Yeah, I can pass some parameter (say current form name) into AdvertAppBar constructor, but I think is there some more appropriate approach?– Alex Zhulin
Jan 2 at 13:34
From what I understood from your question is that you are trying to only load the content of your
ListView widget without reloading your appBar am I right ?– Ali Hussam
Jan 2 at 17:43
From what I understood from your question is that you are trying to only load the content of your
ListView widget without reloading your appBar am I right ?– Ali Hussam
Jan 2 at 17:43
add a comment |
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You may be able to do this using the inheritedWidgetOfExactType method but it might be better if you simply pass data into your
AdvertAppBarclass. What exactly are you trying to acheive?– Jordan Davies
Jan 2 at 13:15
did you context.widget.runtimeType
– Ahmed
Jan 2 at 13:18
@JordanDavies From MainScreen I want to call ListScreen
(Navigator.push(context, MaterialPageRoute(builder: (context) => ListScreen()),);), but fromListScreenI want only refresh content of theListScreen. Yeah, I can pass some parameter (say current form name) into AdvertAppBar constructor, but I think is there some more appropriate approach?– Alex Zhulin
Jan 2 at 13:34
From what I understood from your question is that you are trying to only load the content of your
ListViewwidget without reloading yourappBaram I right ?– Ali Hussam
Jan 2 at 17:43