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[Bug] iOS CollectionView Cannot access disposed object. DefaultRenderer #12894

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VladislavAntonyuk opened this issue Nov 18, 2020 · 3 comments · Fixed by #12923
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[Bug] iOS CollectionView Cannot access disposed object. DefaultRenderer #12894

VladislavAntonyuk opened this issue Nov 18, 2020 · 3 comments · Fixed by #12923
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a/carouselview a/collectionview e/3 🕒 3 i/high Completely doesn't work, crashes, or is unusably slow, has no obvious workaround; occurs less often t/bug 🐛
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Triage CollectionView

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@VladislavAntonyuk
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VladislavAntonyuk commented Nov 18, 2020 •
edited

Reopened the issue: #12776
Still reproduced on 5.0.0-pre4
iOS 14.1

Step to reproduce:

  1. Create RefreshView
  2. Put CollectionView inside
  3. Pull down to execute refresh.
NSObject.get_SuperHandle () /Library/Frameworks/Xamarin.iOS.framework/Versions/14.7.0.166/src/Xamarin.iOS/Foundation/NSObject2.cs:394
UIView.set_Frame (CoreGraphics.CGRect value) /Library/Frameworks/Xamarin.iOS.framework/Versions/14.7.0.166/src/Xamarin.iOS/UIKit/UIView.g.cs:3732
ItemsViewController`1[TItemsView].LayoutEmptyView () D:\a\1\s\Xamarin.Forms.Platform.iOS\CollectionView\ItemsViewController.cs:330
ItemsViewController`1[TItemsView].ViewWillLayoutSubviews () D:\a\1\s\Xamarin.Forms.Platform.iOS\CollectionView\ItemsViewController.cs:163
StructuredItemsViewController`1[TItemsView].ViewWillLayoutSubviews () D:\a\1\s\Xamarin.Forms.Platform.iOS\CollectionView\StructuredItemsViewController.cs:78
(wrapper managed-to-native) UIKit.UIApplication.UIApplicationMain(int,string[],intptr,intptr)
UIApplication.Main (System.String[] args, System.IntPtr principal, System.IntPtr delegate) /Library/Frameworks/Xamarin.iOS.framework/Versions/14.7.0.166/src/Xamarin.iOS/UIKit/UIApplication.cs:86
UIApplication.Main (System.String[] args, System.String principalClassName, System.String delegateClassName) /Library/Frameworks/Xamarin.iOS.framework/Versions/14.7.0.166/src/Xamarin.iOS/UIKit/UIApplication.cs:65
@VladislavAntonyuk VladislavAntonyuk added s/unverified New report that has yet to be verified t/bug 🐛 labels Nov 18, 2020
@samhouts samhouts added this to New in Triage Nov 18, 2020
@jsuarezruiz jsuarezruiz added a/carouselview a/collectionview i/high Completely doesn't work, crashes, or is unusably slow, has no obvious workaround; occurs less often labels Nov 18, 2020
@jsuarezruiz
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Could you attach a sample where reproduce the issue?.
Some doubts:

  • CollectionView has EmptyView defined?
  • RefreshView when executing the command, does it return an empty collection?

@jsuarezruiz jsuarezruiz moved this from New to Needs Info in Triage Nov 18, 2020
@jsuarezruiz jsuarezruiz added the s/needs-info ❓ A question has been asked that requires an answer before work can continue on this issue. label Nov 18, 2020
@VladislavAntonyuk
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VladislavAntonyuk commented Nov 18, 2020 •
edited

issue12894.zip
open the Browse page, swipe to refresh
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@VladislavAntonyuk VladislavAntonyuk mentioned this issue Nov 19, 2020
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@jsuarezruiz
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Thanks for the repro sample!

@jsuarezruiz jsuarezruiz moved this from Needs Info to Ready For Work in Triage Nov 20, 2020
@jsuarezruiz jsuarezruiz added e/3 🕒 3 and removed s/needs-info ❓ A question has been asked that requires an answer before work can continue on this issue. s/unverified New report that has yet to be verified labels Nov 20, 2020
@jsuarezruiz jsuarezruiz added this to Backlog in CollectionView via automation Nov 20, 2020
@jsuarezruiz jsuarezruiz mentioned this issue Nov 20, 2020
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Triage automation moved this from Ready For Work to Closed Dec 11, 2020
CollectionView automation moved this from Backlog to Done Dec 11, 2020
rmarinho pushed a commit that referenced this issue Dec 11, 2020
@jsuarezruiz
[iOS] Cannot access a disposed object using CollectionView EmptyView (#…
15fc853 
…12923) fixes #12910 fixes #12894

* Added repro sample

* Updated sample

* Updated repro sample

* Fix build error
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a/carouselview a/collectionview e/3 🕒 3 i/high Completely doesn't work, crashes, or is unusably slow, has no obvious workaround; occurs less often t/bug 🐛
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[iOS] Cannot access a disposed object using CollectionView EmptyView xamarin/Xamarin.Forms
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