Xamarin.forms: [Bug] Shell.Current.Navigation.PopAsync(true) causing blink on Android

[KevinHu-au]

Description

On Android device, when navigating back by calling Shell.Current.Navigation.PopAsync(true) with animation, it is causing quick blink on the device.

Steps to Reproduce

1. Under a Xamarin.Forms Shell App, navigating From Page A to Page B by calling "Shell.Current.GoToAsync("PageB", true)".
2. And pop the Page B from the navigation by calling "Shell.Current.Navigation.PopAsync(true)"
   The first step (pusing the PageB into the navigation stack with animation) works fine for me on Android.
   

   Expected Behavior

Should have a smooth navigation experience.

Actual Behavior

The pop step gets blink on Android.

Basic Information

• Version with issue: Xamarin.Forms 4.4.0.991265
• Last known good version: N/A
• IDE: Visual Studio for Mac community 8.4 (build 2657)
• Platform Target Frameworks:
  
  
  
  • iOS: 10.0
  
  
  • Android: Android 10.0(Q)
  
  
  • UWP: N/A
  
  
• Android Support Library Version:
• Nuget Packages:
• Affected Devices: Samsung Galaxy A20

Screenshots

As it is a blink issue, I cannot provide screenshots.

Reproduction Link

Workaround

[ahmedalejo]

I can confirm this and it duplicates the following issues:
**#9300 - Xamarin shell navigation flickering on back press

8581 - [Bug] Shell application flickering on back navigation**

[jsuarezruiz]

Seems to be the same as https://github.com/xamarin/Xamarin.Forms/issues/8581

[ahmedalejo]

Workaround

disable animation

Shell.Current.Navigation.PopAsync(animated: false)

[KevinHu-au]

I did take out of the animation by setting the animated to false.

[alex-relov]

please solve this problem. I can not put the application in production

[KevinHu-au]

I have also found the blink issue occurs for "Shell.Current.GoToAsync()" with animated 'true' and 'false'.

Please check my comment on https://github.com/xamarin/Xamarin.Forms/issues/8581.

[PureWeen]

duplicate https://github.com/xamarin/Xamarin.Forms/issues/8581

[ahmedalejo]

[Shell] navigation - flickering #5755 as of 29 March 2019