Bug 42579 - Android Crash when maps component is a child of a ListView header and you open a modal page
Summary: Android Crash when maps component is a child of a ListView header and you ope...
Status: RESOLVED DUPLICATE of bug 43692
Alias: None
Product: Forms
Classification: Xamarin
Component: Android ()
Version: 2.3.1
Hardware: Macintosh Mac OS
: --- major
Target Milestone: ---
Assignee: Bugzilla
Depends on:
Reported: 2016-07-15 00:42 UTC by Cliff Cawley
Modified: 2016-09-07 21:18 UTC (History)
3 users (show)

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

Sample to reproduce bug (4.05 KB, application/octet-stream)
2016-07-15 00:42 UTC, Cliff Cawley
The real sample to reproduce (57.64 KB, application/zip)
2016-08-10 22:51 UTC, Cliff Cawley

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Description Cliff Cawley 2016-07-15 00:42:41 UTC
Created attachment 16674 [details]
Sample to reproduce bug

This one took many hours to track down to the root cause because our app is large now but I finally figured out the conditions to reproduce.

Basically if you have a map embedded in a ListView header and from that Page you push a modal Page contained in a NavigationPage, the app crashes with:

android.widget.ImageView cannot be cast to android.view.ViewGroup

To reproduce, just open the attached Sample, ensure you choose the Droid project and then run and click the 'click me' button.

My workaround for now is to not present it in a NavigationPage but that means I get no title and no toolbar buttons. It's not ideal at all.
Comment 1 Rui Marinho 2016-08-10 16:15:02 UTC
Thank you for taking the time to submit the bug. We tried to reproduce the issue you reported but were unable given the description. If you could please attach a reproduction to the bug by starting with a clean Xamarin.Forms project and adding just the code necessary to demonstrate the issue, we would very much appreciate it.

For your convenience, we have created some reproduction best practices viewable here: https://gist.github.com/jassmith/92405c300e54a01dcc6d

Warm regards, 
Xamarin Forms Team
Comment 2 Cliff Cawley 2016-08-10 22:01:12 UTC
Hi, the sample attached to my initial submission reproduces the bug for you from a clean Xamarin.Forms project.

Did this not work for you?
Comment 3 Rui Marinho 2016-08-10 22:02:31 UTC
it just downloads the .sln file.
Comment 4 Cliff Cawley 2016-08-10 22:51:44 UTC
Created attachment 16983 [details]
The real sample to reproduce
Comment 5 Cliff Cawley 2016-08-10 22:52:19 UTC
Oh, so sorry. I've attached the real sample now. I must have selected the wrong file the first time :(
Comment 6 Rui Marinho 2016-08-11 10:34:21 UTC
Ok i m able to confirm the crash.

Comment 7 Florin Chelaru 2016-09-07 16:53:21 UTC
This seems to be related to this more general bug: https://bugzilla.xamarin.com/show_bug.cgi?id=43692
Comment 8 Cliff Cawley 2016-09-07 21:18:22 UTC
Ah yes, that seems like the same issue
Comment 9 Cliff Cawley 2016-09-07 21:18:37 UTC

*** This bug has been marked as a duplicate of bug 43692 ***