[Bug] iOS keyboard case flickers when switching entries

[richardgarnier]

Description

On iOS, when switching on non empty entries with auto-capitalize on, the keyboard will briefly show the uppercase keyboard before switching to the lowercase one. This creates an ugly flicker effect.

Steps to Reproduce

1. Tap an entry
2. Tap another entry
3. Tap another entry

Expected Behavior

When switching entries, the keyboard should not display uppercase characters.

Actual Behavior

When switching entries, the keyboard briefly display uppercase characters creating a flicker effect.

Basic Information

• Version with issue: 4.3.0.991221, 4.4.0.991477
• Last known good version: None
• IDE: Visual Studio 2019
• Platform Target Frameworks:
  • iOS: 8.0
• Affected Devices: iPhone 6

Screenshots

Reproduction Link

1. Create a empty Xamarin forms project targetting iOS.
2. Replace the StackLayout in MainPage.xaml with the following content:

    <StackLayout>
        <Label Text="Welcome to Xamarin.Forms!" HorizontalOptions="CenterAndExpand" />
        <Entry Text="The keyboard capitalization flickers on iOS"/>
        <Entry Text="The last letter does not matter"/>
    </StackLayout>

3. Deploy to an iOS device.

Workaround

No workaround available at the moment