[Bug] iOS: Frame inside SwipeView can't be swiped

[tonivuc]

Description

On iOS, a Frame as top-level content can't be swiped. Nothing happens if you attempt to swipe. If the Frame is placed in a Layout like ContentView or StackLayout it works. On Android swiping works as expected.

Steps to Reproduce

1. Run the following code

<SwipeView>
    <SwipeView.RightItems>
        <SwipeItems>
            <SwipeItem Text="Favorite"
                               BackgroundColor="LightGreen"/>
            <SwipeItem Text="Delete"
                               BackgroundColor="LightPink" />
        </SwipeItems>
    </SwipeView.RightItems>
    <Frame>
        <Grid HeightRequest="60"
                  WidthRequest="300"
                  BackgroundColor="LightGray">
            <Label Text="Swipe left"
                       HorizontalOptions="Center"
                       VerticalOptions="Center" />
        </Grid>
    </Frame>
</SwipeView>

Expected Behavior

The frame moves when swiped.

Actual Behavior

The frame does not move when attempting to swipe.

Basic Information

• Version with issue: Xamarin Forms version 4.5.0.282-pre4
• Last known good version: Xamarin Forms version 4.5.0.142-pre1
• IDE: Visual Studio 16.4.3
• Platform Target Frameworks:
  • iOS: 13.3
• Affected Devices: Tested on 5th gen iPad mini and iPhone Simulator

Reproduction Link

https://github.com/tonivuc/swipeview-frame-bug

Workaround

If the Frame is placed in a Layout like ContentView or StackLayout it works.