Bug 30412 - Images in ListView delayed until some thread finishes
Summary: Images in ListView delayed until some thread finishes
Alias: None
Product: Forms
Classification: Xamarin
Component: Android ()
Version: 1.4.3
Hardware: Macintosh Mac OS
: --- normal
Target Milestone: ---
Assignee: Bugzilla
Depends on:
Reported: 2015-05-25 11:57 UTC by Michał Mazur
Modified: 2016-04-08 19:58 UTC (History)
5 users (show)

Is this bug a regression?: ---
Last known good build:

App demonstrating the bug (200.45 KB, application/octet-stream)
2015-05-25 12:00 UTC, Michał Mazur
Simplified app demonstrating the bug (31.53 KB, application/octet-stream)
2015-05-27 05:56 UTC, Michał Mazur

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Description Michał Mazur 2015-05-25 11:57:45 UTC
Attached sample app.

1. Images are loaded correctly, except during a Task/Thread started by Insights (web service connection ?)
2. App is still responsive, only the images are not loaded during the task
3. Though app does not respond properly to orientation change during the task (freezes until it finishes)
4. Disabling Insights causes app to work properly
Comment 1 Michał Mazur 2015-05-25 12:00:10 UTC
Created attachment 11317 [details]
App demonstrating the bug
Comment 2 Chris King 2015-05-26 15:25:28 UTC
We'd be happy to help you resolve this issue. Please help us by attaching a reduced reproduction to the bug by starting with a clean Xamarin.Forms project and adding just the code necessary to demonstrate the issue. 

Warm regards,
Xamarin Forms Team
Comment 3 Michał Mazur 2015-05-27 05:56:01 UTC
Created attachment 11355 [details]
Simplified app demonstrating the bug

App contains a simple list of items and a button to refresh the list.
Depending on some task (I believe it is being started by Insights) images in the list items are not loading until the task finishes. Images will not appear even without refreshing the list - it is enough to scroll the list back and forth while the task is running to see that images are not showing on the recycled cells.

I can't make app much simpler.

Comment 4 leankitryan 2015-05-27 14:45:33 UTC
We seeing this as well. It appears to be a duplicate of this issue which is a bit more thorough: https://bugzilla.xamarin.com/show_bug.cgi?id=30333

We rolled back to insights which does not seem to have any thread blocking issues.
Comment 5 Jason Smith [MSFT] 2016-04-08 19:58:04 UTC