I have a drawer in my app and I want to maintain the state of toggle switch in it. How can i do this ? This is the code

SizedBox(
                          height: 40,
                          child: ListTile(
                            leading: SizedBox(
                              height: 25,
                              width: 25,
                              child: Image.asset(
                                'assets/sideMenu/Bell.png',
                              ),
                            ),
                            title: Transform.translate(
                                offset: const Offset(-14, 0),
                                child: const Text('Notifications',
                                    style: TextStyle(
                                        fontSize: 12, color: Colors.white))),
                            trailing: SizedBox(
                                height: 20,
                                width: 40,
                                child: Transform.scale(
                                  scale: 1.3,
                                  child: Switch.adaptive(
                                      value: value,
                                      activeColor: Colors.white,
                                      activeTrackColor: const Color.fromARGB(
                                          255, 35, 187, 40),
                                      onChanged: (value) =>
                                          setState(() => this.value = value)),
                                )),
                          ),
                        ),

Anything I can do to make this maintain its state?

This is how it works now :

CodePudding user response：

You can use shared preferences and save the state on press

onChanged: (val)async{
  setState((){value = val});
  SharedPreferences prefs= await SharedPreferences.getInstance();
  prefs.setBool("notificationStatus", val);
}

Then in initstate you can set the value

bool value = true;
@override
initState() {
  super.initState();
 fetchNotificationStatus();
}
fetchNotificationStatus() async{
  SharedPreferences prefs = await SharedPreferences.getInstance();
  value = prefs.getBool("notificationStatus")??true;
 setState((){});
}