每个平台在XAML中定义的FontFamily [英] FontFamily defined in XAML per platform

问题描述

在我的Xamarin Forms项目中，我想定义每个平台的Form系列onect及其在应用程序中的用途.

In my Xamarin Forms project I would like to define the Form family onect per platform and the use that in the application.

到目前为止，我已经按照控件类型对FontFamily进行了硬编码

So far I've hardcoded the FontFamily per controltype

  <Style x:Key="TahomaBase_Label" TargetType="Label" BaseResourceKey="SubtitleStyle">
    <Setter Property="FontFamily" Value="Tahoma" />
  ...
 </Style>

是否可以在我的XAML代码中全局设置Fotnfamily，而不是使用OnPlatform标记?

Is it posible to set Fotnfamily globally in my XAML code preferable itn a OnPlatform tag?

推荐答案

在App.xaml中定义样式，然后在整个应用程序中引用该样式.这样，您可以使用OnPlatform标记在App.xaml中设置一次字体，而不必担心所有其他XAML文件中的OnPlatform.

Define a style in the App.xaml and then reference that style throughout the app. That way you can set the font once in the App.xaml using the OnPlatform tag and never have to worry about OnPlatform in all your other XAML files.

<Application xmlns="http://xamarin.com/schemas/2014/forms" xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" x:Class="PlatformFontSample.App">
    <Application.Resources>
        <ResourceDictionary>
            <OnPlatform x:Key="FontFamilyName" x:TypeArguments="x:String" iOS="MarkerFelt-Thin" Android="OpenSans" WinPhone="Segoe UI" />
            <Style x:Key="FontLabel" TargetType="Label">
                <Setter Property="FontFamily" Value="{DynamicResource FontFamilyName}" />
            </Style>
        </ResourceDictionary>
    </Application.Resources>
</Application>

然后:

<Label Text="{Binding Name}" Style="{DynamicResource FontLabel}" FontSize="Medium" FontAttributes="Bold" LineBreakMode="NoWrap"/>

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