'Xamarin FontImageSource Glyph not showing up

I am trying to add a font icon using the following code:

    <Image>
        <Image.Source>
            <FontImageSource
                FontFamily="{OnPlatform iOS=Ionicons,
                                        Android=ionicons.ttf#}"
                Glyph="&#xf37f;"
                Size="44"
                Color="Red" />
        </Image.Source>
    </Image>

which I found on the official Microsoft Docs. However, the icon doesn't show up on my Android phone, instead I get this (symbol not found placeholder): Unknown symbol placeholder



Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source