Issues regarding Pivot control

[Mohsens22]

Current behavior

When using a pivot with binding, after the page loads, all of the contents of all pages are stacked onto each other.

Problem number 2:
When using pivot controls, something similar to #5125 happens.

Expected behavior

The expected behavior is that it normally loads the data from the binding and shows it properly, just like UWP.

How to reproduce it (as minimally and precisely as possible)

See this code:
http://playground.platform.uno/#aed77628

Workaround

Workaround for binding issue: initialize a 10-100 millisecond delay from the load of the page/ViewModel to binding.
Workaround for display issue: Create a custom pivot template and get rid of the scroll viewer inside it.

Environment

• Uno.UI / Uno.UI.WebAssembly / Uno.UI.Skia
• Uno.WinUI / Uno.WinUI.WebAssembly / Uno.WinUI.Skia
• Uno.SourceGenerationTasks
• Uno.UI.RemoteControl / Uno.WinUI.RemoteControl
• Other:

Nuget Package Version(s):

Affected platform(s):

• iOS
• Android
• [x ] WebAssembly
• WebAssembly renderers for Xamarin.Forms
• macOS
• Skia
  • WPF
  • GTK (Linux)
  • Tizen
• Windows
• Build tasks
• Solution Templates

IDE:

• Visual Studio 2019 (version: Latest)

[carldebilly]

It's very strange because changing the data will fix the problem. Look like a state problem.

[Mohsens22]

Things in Skia are way worse

[Mohsens22]

It doesn't even show the default two-way bound data

[ajpinedam]

Hi @Mohsens22 thank you for reporting this issue and also for providing an easy way to reproduce it.

I see you selected Android as one of the affected platforms, is this correct?

I was capable of reproducing the error using the code you provided on both Skia and WASM but I haven't been able to reproduce it on Android (Pixel XL Android 10).

Anyways I will be looking to fix this, just wanted to make sure we are fixing all the affected platforms.

Andres