Standardize Xamarin Android Styles.xml and ResourceDictionary - xamarin

Question

I'm trying to avoid duplicate declaration of style definitions in both android styles.xml and resourcedictionary. For example,
In Android styles.xml, I've the following to change the default theme's primary color
<?xml version="1.0" encoding="UTF-8"?>
<resources>
<style name="MyDefaultTheme">
<item name="colorPrimary">#color/colorPrimary</item>
</style>
<color name="colorPrimary">#0E80FF</color>
</resources>
And in DefaultResourceDictionary.xaml, I've the following so that my XF's controls uses the same color as defined in styles.xml:
<ResourceDictionary ...>
<Color x:Key="colorPrimary">#0E80FF</Color>
</ResourceDictionary>
On top of my head, I can think of doing some PreBuild actions to invoke XmlPoke to insert the value from ResourceDictionary into styles.xml.
Is there any less complicated ways of doing it?

Answer 1

Yes you can add styles in the App Class.
Example adding this in the App.xaml file
<Application.Resources>
<ResourceDictionary>
<Color x:Key="PrimaryColor">#512bdf</Color>
<Color x:Key="SecondaryColor">White</Color>
<Style TargetType="Label">
<Setter Property="TextColor" Value="{DynamicResource PrimaryColor}" />
<Setter Property="FontFamily" Value="OpenSansRegular" />
</Style>
<Style TargetType="Button">
<Setter Property="TextColor" Value="{DynamicResource SecondaryColor}" />
<Setter Property="FontFamily" Value="OpenSansRegular" />
<Setter Property="BackgroundColor" Value="{DynamicResource PrimaryColor}" />
<Setter Property="Padding" Value="14,10" />
</Style>
</ResourceDictionary>
</Application.Resources>