CODEWITHSUNDEEP
flutterdart
rameez khan
rameez khan

Reputation: 359

Flutter dispose provider notifyListners()

I have a simple controller like this

class MatchListController with ChangeNotifier {
  List<MatchData> liveMatches = [];

  MatchListController() {
    getMatchList();
  }

  getMatchList() async {
    debugPrint('match list api called');
    var response = await ApiService().matchList();
    if (response != null) {
      final databody = json.decode(response);
      notifyListeners();
    }
  }
}

When my page loads it runs the function getMatchList() which is fine but If I change the page between function and when it return data notifyListeners hit and app crash. I am using loading but I have tab menu so I can change the page from there What I want is if page is close then notifyListeners dispose.

Upvotes: 1

Views: 155

Answers (1)

HII
HII

Reputation: 4109

The answer that khalil mentioned is correct, there is also another solution:

Since you are using loading, I assume you want to prevent the page from changing, so you can wrap the tab menu buttons with an AbsorbPointer widget, and use setState to change its absorbing state according to your loading state. Your loading state can simply be a boolean inside your stateful widget.

Upvotes: 1

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