Bug 38416 - ListView Sized Incorrectly After Containing Layout's Visibility is Toggled
Summary: ListView Sized Incorrectly After Containing Layout's Visibility is Toggled
Alias: None
Product: Forms
Classification: Xamarin
Component: Android ()
Version: 2.0.0
Hardware: PC Mac OS
: Normal blocker
Target Milestone: ---
Assignee: Bugzilla
Depends on:
Reported: 2016-02-03 23:29 UTC by Jimmy [MSFT]
Modified: 2016-04-06 17:30 UTC (History)
3 users (show)

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

repro solution (304.14 KB, application/zip)
2016-02-03 23:29 UTC, Jimmy [MSFT]

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Description Jimmy [MSFT] 2016-02-03 23:29:17 UTC
Created attachment 14875 [details]
repro solution

### Overview
Toggling the visibility of a Layout that contains a ListView will cause the ListView to be sized greater than the screen’s height. This means that you cannot scroll all the way to the bottom on the ListView because some of the items are rendered off screen.

### Steps to Reproduce
1. Run the Android project in the attached repro solution
2. Press on “Toggle Visibility”
3. Scroll down the ListView

### Expected Results
You should see 70 items in the ListView.

### Actual Results
The ListView appears to be cutoff at the bottom of the screen and the remaining couple of items are not visible.

### Workaround
Toggle the visibility of the ListView as well, not just the containing Layout. Note that the ListView’s visibility needs to be toggled _after_ the containing Layout’s visibility.

### Regression Status
This issue occurs in the latest stable and 2.1 pre-release version. It does _not_ occur in Forms or below.
Comment 1 Jason Smith [MSFT] 2016-03-11 03:50:26 UTC
Should be fixed in 2.2.0-pre1
Comment 2 Parmendra Kumar 2016-04-06 17:30:11 UTC
I have checked this issue with xamarin.forms 2.2.0-pre1 and its working fine.

Hence closing this issue.