[Bug] Once we launch a page from the More list in IOS, we couldn't navigate to another page.

[jessiezh0320]

Description

In IOS, when there are more than 5 tabs, a More list is generated in iOS.Once we launch a page from the More list, we couldn't navigate to another page.

Steps to Reproduce

1. create a xamarin form project with Tabbed template
2. add more than five NavigationPage in TabbedPage, for example:

    <TabbedPage xmlns="http://xamarin.com/schemas/2014/forms" xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" xmlns:local="clr-namespace:TabbedPageWithNavigationPage;assembly=TabbedPageWithNavigationPage" x:Class="TabbedPageWithNavigationPage.MainPage">

    <NavigationPage Title="TestPage1" IconImageSource="img1.png">
        <x:Arguments>
            <local:TestPage1 />
        </x:Arguments>
    </NavigationPage>

    <NavigationPage Title="TestPage2" IconImageSource="img2.png">
        <x:Arguments>
            <local:TestPage2 />
        </x:Arguments>
    </NavigationPage>

    <NavigationPage Title="TestPage3" IconImageSource="img3.png">
        <x:Arguments>
            <local:TestPage3 />
        </x:Arguments>
    </NavigationPage>


    <NavigationPage Title="TestPage4" IconImageSource="img4.png">
		<x:Arguments>
			<local:TestPage4 />
		</x:Arguments>
	</NavigationPage>
    <!-- More -->

    <NavigationPage Title="TestPage5" IconImageSource="img5.png">
        <x:Arguments>
            <local:TestPage5 />
        </x:Arguments>
    </NavigationPage>
    <NavigationPage Title="TestPage6" IconImageSource="img4.png">
        <x:Arguments>
            <local:TestPage6 />
        </x:Arguments>
    </NavigationPage>
</TabbedPage>

3. add a click event in TestPage5 or TestPage6 and navigate to a new page (eg. TestPage7).After that, when we click Button to trigger the event, we will find that we couldn't go to TestPage7.

    void Button_Clicked(object sender, EventArgs e)
    { 
        Navigation.PushAsync(new TestPage7());
   }

Expected Behavior

We expect the current page in more list could navigate to another page just as in android.

Actual Behavior

The page in more list couldn't navigate to another page in IOS.

Basic Information

• Version with issue:
• Last known good version:
• IDE:
• Platform Target Frameworks:
  • iOS:
  • Android:
  • UWP:
• Android Support Library Version:
• Nuget Packages:
• Affected Devices:

Screenshots

Reproduction Link

Workaround

[StephaneDelcroix]

I think this is known, and it's the case for a long time because of [reasons I can't recall]. But it shouldn't be a problem in Shell

[samhouts]

Duplicate of #1336

[samhouts]

Unfortunately has a problem in shell, too: #7594

[PureWeen]

Reason
#8749 (comment)

[burrowj]

I'm confused a bit.
I have this issue with Shell but is it fixed? is there a workaround?
Shell can't handle more than 4 tabs on IOS and work properly?

[TheSundayDev]

issue still present in xamarin forms 5, any news on this bug? thanks

[TheSundayDev]

hi someone can help in order to find a fix for this bug? thanks