Xamarin Forms OnPlatform in Xaml

Question

I have the following C# code:

var footer = new StackLayout()
            { BackgroundColor = Device.OnPlatform(Color.FromRgb(225, 240, 251), Color.FromRgb(22         


        

Answer 1

You're almost there. The default converter takes care of converting the color from either a named color (e.g. White, Red, etc.) or a hex color (e.g.: #FF0000).

<StackLayout.BackgroundColor>
    <OnPlatform x:TypeArguments="Color">
        <OnPlatform.iOS>#FF0000</OnPlatform.iOS>
        <OnPlatform.Android>#00FF00</OnPlatform.Android>
    </OnPlatform>
</StackLayout.BackgroundColor>

Answer 2

Newer version syntax of OnPlatform is slightly different

In Xaml:

 <ResourceDictionary>
            <OnPlatform x:Key="SwitchOnColor"  x:TypeArguments="Color" >
                <On Platform="iOS|Android" >#0000FF</On>
                <On Platform="UWP">#FF0000</On>
            </OnPlatform>
 </ResourceDictionary> 

In code:

 switch (Device.RuntimePlatform)
 {
     case "iOS":
     break;
     case "Android":
     break;
     case "UWP":
     break;
     default:
     break;
 }