PageCotroller error ScrollController attached to multiple scroll views

Question

I have a class like this :

class MyController {
  static PageController globalController = PageController(initialPage: 0);

  void diispose() {
    globalController.dispose();
  }
}

I'd like to use this PageController in two different locations to modify thePageView however after use MyController.globalController.jumpToPage(1); I got this error :

ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
package:flutter/…/widgets/scroll_controller.dart:1
Failed assertion: line 108 pos 12: '_positions.length == 1'

Guilherme Gabanelli · Accepted Answer · 2022-05-17 16:57:39Z

1

I think you cannot use the same PageController for two scroll views, but you can create one for each scroll and one method that jump all scrolls to page, as the example below:

class MyController {
  static PageController globalControllerOne = PageController(initialPage: 0);
  static PageController globalControllerTwo = PageController(initialPage: 0);

  void jumpToPage(int page) {
    globalControllerOne.jumpToPage(page);
    globalControllerTwo.jumpToPage(page);
  }

  void dispose() {
    globalController.dispose();
  }
}

answered May 17, 2022 at 16:57

Guilherme Gabanelli

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1 Comment

Behnam Over a year ago

In my case, I'd like to control a single PageView from two different locations using a single PageController connected to my widget. For example, I'd like to have a button somewhere in my app that changes the BottomNavigationBar items using PageController.

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