Bug 56072 - HidesBottomBarWhenPushed does nothing
Summary: HidesBottomBarWhenPushed does nothing
Status: RESOLVED ANSWERED
Alias: None
Product: Forms
Classification: Xamarin
Component: iOS ()
Version: 2.5.0
Hardware: PC Windows
: Normal normal
Target Milestone: ---
Assignee: Bugzilla
URL:
Depends on:
Blocks:
 
Reported: 2017-05-05 20:42 UTC by Paul Brenner
Modified: 2018-02-14 19:43 UTC (History)
3 users (show)

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


Attachments
Sample showing issue (1.38 MB, application/zip)
2017-05-05 20:42 UTC, Paul Brenner
Details


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Status:
RESOLVED ANSWERED

Description Paul Brenner 2017-05-05 20:42:42 UTC
Created attachment 21989 [details]
Sample showing issue

I have a tabbed page with a page and a page in a navigation controller. On the page with the navigation controller, there is a button that will do a push to another page. When the page is pushed I want to remove the tab bar. And when the user hits back, I want the tab bar to reappear. The property HidesBottomBarWhenPushed on a UIViewController is supposed to do just that. 

Setting that property in a Xamarin.ios project works perfectly, does exactly what it is supposed to do.

Setting the property in a custom renderer in a Xamarin.forms project does nothing, the tab bar won't disappear when the page is pushed. 

Tested on 2.3.4.224 and 2.3.5.235-pre2

The attached zip has the Xamarin.ios project as well as the Xamarin forms project.
Comment 1 Paul DiPietro [MSFT] 2017-05-05 22:17:57 UTC
Thanks for the reproduction; setting to confirmed for further investigation.
Comment 2 Paul Brenner 2017-05-25 20:33:44 UTC
For others having this problem, found a workaround.

Set TabBarController.TabBar.Hidden to true in a custom renderer.
It will leave an empty space where the bar was, to fix, set the frame to:

TabBarController.View.Subviews[1].Frame = new CGRect(TabBarController.View.Subviews[1].Frame.X, TabBarController.View.Subviews[1].Frame.Y, TabBarController.View.Subviews[1].Frame.Width, 0);
Comment 3 Adam Hartley [MSFT] 2017-12-12 09:46:22 UTC
I can confirm that this is still occurring in Forms 2.5 using the sample project provided.
Comment 4 Paul Brenner 2018-02-14 19:43:26 UTC
See https://github.com/xamarin/Xamarin.Forms/issues/1887