CODEWITHSUNDEEP
flutterflutter-pageview
Miro Liebschner
Miro Liebschner

Reputation: 76

PageView rebuilds main widget In unexpected order

Problem: I have a PageView with 3 pages: P1,P2,P3. When I open an additional page on P3 (or P2) and then close that additional page, the PageView rebuilds but puts P3 as the first page.The new broken page order is P3,P2,P3.

If I exclude if (_page != 0 && position == 0) { return pageListTest[_page];} P1 will be shown instead of P3 as position == 0 which is logical but also not the desired behavior as P3 should just be shown again.

Here is the code im using:

body: (_page > 2) ? 
// if the page is not included in the page view
getPage(_page, arguments): 
//if the page is included in the page view 
ScrollConfiguration(
behavior: CustomScrollBehaviour(),
child: PageView.builder(
itemCount: 3,
controller: controller,
onPageChanged: (newPosition) {
bottomNavBarProvider.setPage(newPosition, newPosition);},
itemBuilder: (context, position) {
//Here is the problem: I navigate back therefore _page != 0 but position==0
if (_page != 0 && position == 0) {
return pageListTest[_page];}
return pageListTest[position];
})

Any ideas? Thanks :)

Upvotes: 0

Views: 355

Answers (1)

RobHG
RobHG

Reputation: 115

Check PageView class https://api.flutter.dev/flutter/widgets/PageView-class.html There it says you need to create a page controller and add the pages as a widget children. Also, you have to set which page is the first page before defining the pageView controller.

Upvotes: 1

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