XAML Changing font size dynamically iOS Xamarin app

Question

I want to make a label appear the same size proportionally regardless of the resolution of the target device

I have the following code

<StackLayout 
     Orientation="Vertical" Margin="0,0,0,0" Padding="0,0,0,0" 
     HorizontalOptions="FillAndExpand" VerticalOptions="FillAndExpand">
         <Label Text="{Binding AccountName}" 
                Style="{StaticResource labelStylePrimaryBold}"
                HorizontalOptions="StartAndExpand" />
</StackLayout>

I have the above code and this in my App.xaml

  <Style x:Key="labelStylePrimaryBold" TargetType="Label">
    <Setter Property="TextColor" Value="#414042" />
    <Setter Property="FontAttributes" Value="Bold" />
    <Setter Property="FontSize" Value="15" />
  </Style>

I need to make this available across my app, I've seen the following code on https://developer.xamarin.com/guides/xamarin-forms/user-interface/text/fonts/

label.FontSize = Device.OnPlatform (
     24,
     Device.GetNamedSize (NamedSize.Medium, label),
     Device.GetNamedSize (NamedSize.Large, label)
);

But my label does not have an ID, how would I go about linking this up?

I'm very new to Xamarin, but this seems like a fairly obvious thing to want to do.

Answer 1

You can use Xamarin forms NamedSize Enumeration

You can choose from:

• Default
• Large
• Medium
• Micro
• Small

Example:

<Label  FontSize="small"  Text="Joe"></Label>
<Label  FontSize="Large"  Text="Joe"></Label>