Xamarin.Forms: How to use custom Fonts in C# Code

Question

I want to use some custom Fonts (.ttf) in my Xamarin.Forms Application. I added the two Fonts in both Projects(Android/iOS):

Now in the XAML-Page, I added the Fonts to the ResourceDictionary. It's also possible to use the Fonts, but just in the XAML-File:

<Label Text="Test" FontFamily="{StaticResource FONT}" FontSize="Medium"/>

But how can I use this font in the C# Code?

Same as xaml you can access font family in c# and specify like this: FontFamily="Roboto-Regular.ttf#Roboto-Regular" , as per your fonts. — MShah
– MShah, Commented Aug 6, 2019 at 11:09
please refer this: learn.microsoft.com/en-us/xamarin/xamarin-forms/user-interface/… — MShah
– MShah, Commented Aug 6, 2019 at 11:10
You should be able to access the ResourceDictionary in code behind: Application.Current.Resources["MyResourceName"]. Remember to cast this to the correct type. If you do it this way you won't have to change the font in multiple places if that's ever needed. Also I advise you to define general styles and use those in your controls (that way you can customize a lot more automatically) — user10608418
– user10608418, Commented Aug 6, 2019 at 14:11
@Knoop thanks for your answer. I know that it's possible to get the Resouces like that, but my problem is the cast. Whats the type of the "fontFamily"? — Max Dunger
– Max Dunger, Commented Aug 6, 2019 at 16:44
Ah not sure tbh, and can't check atm since I'm on a phone. However if you define a Style for Label in your ResourceDictionary that sets the FontFamily you can just cast and use that Style in code-behind — user10608418
– user10608418, Commented Aug 7, 2019 at 6:11

Lucas Zhang · Accepted Answer · 2019-08-06 11:44:48Z

1

The Device.RuntimePlatform property can be used to set different font names on each platform.

if (Device.RuntimePlatform == Device.iOS)
{
    label.FontFamily = "xxx.ttf";
}

else if (Device.RuntimePlatform == Device.Android)
{
    label.FontFamily = "xxx.ttf#xxx";
}

else
{
    label.FontFamily = "Assets/Fonts/xxx.ttf#xxx";
}

edited Aug 6, 2019 at 11:44

answered Aug 6, 2019 at 11:27

Lucas Zhang

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MichelPeseur · Accepted Answer · 2023-05-12 15:50:08Z

0

You can access your font from c# using the following cast:

var yourFont = (OnPlatform<string>)Application.Current.Resources["FONT"];

edited May 12, 2023 at 15:50

answered May 12, 2023 at 15:40

MichelPeseur

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