Bug 58531 - Non-Default AnchorX, AnchorY Cause Translation Errors on iOS
Summary: Non-Default AnchorX, AnchorY Cause Translation Errors on iOS
Status: CONFIRMED
Alias: None
Product: Forms
Classification: Xamarin
Component: iOS ()
Version: 2.3.5
Hardware: PC Windows
: --- normal
Target Milestone: ---
Assignee: Bugzilla
URL:
Depends on:
Blocks:
 
Reported: 2017-08-01 19:14 UTC by Charles Petzold
Modified: 2017-08-07 02:29 UTC (History)
2 users (show)

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

Notice (2018-05-24): bugzilla.xamarin.com is now in read-only mode.

Please join us on Visual Studio Developer Community and in the Xamarin and Mono organizations on GitHub to continue tracking issues. Bugzilla will remain available for reference in read-only mode. We will continue to work on open Bugzilla bugs, copy them to the new locations as needed for follow-up, and add the new items under Related Links.

Our sincere thanks to everyone who has contributed on this bug tracker over the years. Thanks also for your understanding as we make these adjustments and improvements for the future.


Please create a new report for Bug 58531 on Developer Community or GitHub if you have new information to add and do not yet see a matching new report.

If the latest results still closely match this report, you can use the original description:

  • Export the original title and description: Developer Community HTML or GitHub Markdown
  • Copy the title and description into the new report. Adjust them to be up-to-date if needed.
  • Add your new information.

In special cases on GitHub you might also want the comments: GitHub Markdown with public comments

Related Links:
Status:
CONFIRMED

Description Charles Petzold 2017-08-01 19:14:47 UTC
1) Run this program on an iPhone or iOS simulator:

https://github.com/xamarin/xamarin-forms-book-samples/blob/master/Chapter21/RotatedText

The visuals are implemented entirely in the XAML file:

https://github.com/xamarin/xamarin-forms-book-samples/blob/master/Chapter21/RotatedText/RotatedText/RotatedText/RotatedTextPage.xaml

The rotated Label's are centered around the center of the page.

2) Turn the phone or simulator to landscape mode. The rotated text is no longer centered.

This happens only on iOS, and only when AnchorX and/or AnchorY are set to non-default values. Obviously the code that compensates for the translation effects of these properties on iOS is not working correctly.
Comment 1 Paul DiPietro [MSFT] 2017-08-07 02:29:12 UTC
Also checked against the latest 2.3.6-nightly