Flutter - Refresh home page on item tap in drawer - flutter

Question

I'm trying to refresh home page when an item in drawer is tapped.
HomeView is a stateful widget which returns a Scaffold with a drawer like this:
Scaffold(
drawer: const ProfileDrawer(), ....
I made a function which just calls setState in home like this:
void refreshPage() {
setState(() {});
}
Drawer has a listview which returns GestureDetector widgets as below:
GestureDetector(
onTap: () {
profileNotifier(false).setActiveProfile = index;
HomeView().refreshPage();
Navigator.pop(context);
},
child: ....
);
But on drawer class I'm getting error The method 'refreshPage' isn't defined for the type 'HomeView'. So I searched about it and learnt that method inside state cannot be called from elsewhere. But then when I moved the refreshPage function to class definition so that it can be called, now I can't setState.
I just want home to be refreshed when I tap on the drawer item. Any way to do this will work for a very grateful me.

Answer 1

Have been using this trick since then.
In your case, the page HomeView should be statefulWidget:
Hope you can adapt this code to your needs.
creating a GlobalKey for you HomeView like bellow
class HomeView extends StatefulWidget {
//remove the const and add customKey
HomeView({Key? key}) : super(key: GlobalKey<_HomeViewState>());
#override
State<HomeView> createState() => _HomeViewState();
//this is used to call the refreshPage method of your State
void refreshPage() {
print("call the state-method");
(key as GlobalKey<_HomeViewState>).currentState?.refreshPage();
}
}
class _HomeViewState extends State<HomeView> {
void refreshPage() {
setState(() {
print("method called");
});
}
#override
Widget build(BuildContext context) {
return Container();
}
}
create an instance of HomeView outside the GestureDetector
eg:
import 'package:flutter/material.dart';
//you can create the instance here (it depends on your use cases)
HomeView homeView = HomeView();
class A extends StatefulWidget{
...
}
class _AState extends State<A>{
...
return Scaffold(
drawer: ProfileDrawer(homeViewRef:homeView), //your drawer must have reference of your homeView instance
);
}
Drawer eg:
class ProfileDrawer{
...
final HomeView homeViewRef;
ProfileDrawer({required this.homeViewRef}){
...
}
//where this must be
GestureDetector(){
...
homeViewRef.refreshPage();
...
}
}
you should change this line: HomeView().refreshPage(); with homeViewRef.refreshPage(); because you are trying to call refreshPage() of new instance of HomeView (so then avoid).