Bug 34007 - Z order drawing of children views are different on Android and iOS
Summary: Z order drawing of children views are different on Android and iOS
Alias: None
Product: Forms
Classification: Xamarin
Component: Forms ()
Version: 1.5.0
Hardware: PC Mac OS
: Normal normal
Target Milestone: ---
Assignee: E.Z. Hart [MSFT]
Depends on:
Reported: 2015-09-16 10:30 UTC by John Miller [MSFT]
Modified: 2015-10-26 05:57 UTC (History)
8 users (show)

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

Test Case (706.79 KB, application/zip)
2015-09-16 10:30 UTC, John Miller [MSFT]

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Description John Miller [MSFT] 2015-09-16 10:30:53 UTC
Created attachment 12912 [details]
Test Case


   When removing/adding children in a grid, the z-order of the children is different on Android vs. iOS. 
   For example, if you add a child to index 0 of a Grid's children on Android, it will be the bottom-most drawn element (behind everything). 
   When doing the same thing on iOS, the 0 index child is the top-most drawn element (in front of everything). 

**Steps to Reproduce:**

   1. Run the attached sample on an iOS simulator. 
   2. Press the button
   3. Notice that the "text is" (green) view moves to the top of the drawn elements. 

   4. Repeat the same steps on an Android simulator. 
   5. Notice that on Android at step #3, the green view moves to the back, behind all other elements. 

**Actual Results:**

   The view that is moved to index 0 of the grid's children is rendered in a different order on each platform.

**Expected Results:**

   The 0 index child is expected to be the bottom most element in the drawn order (Android is doing this). 

**Build Date & Platform:**

   XF 1.5.0-pre3
Comment 1 Rui Marinho 2015-10-08 12:40:38 UTC
Should be fixed in 1.5.2-pre1
Comment 2 philip 2015-10-08 12:41:51 UTC
GREAT thanks!  I will test it when 1.5.2 is out
Comment 3 Parmendra Kumar 2015-10-26 05:57:24 UTC
I have checked this issue with Xamarin.Forms 1.5.2-pre1 and its working fine.
I am getting same behavior with Android and iOS.

Hence closing this issue.