Xamarin.Forms 中标签 StringFormat 的本地化 [英] Localization for Label StringFormat in Xamarin.Forms

问题描述

在 xamarin 表单中，我可以本地化标签中的文本，例如:
<Label Text="{x:Static resources:AppResources.Text}"/>

In xamarin forms I can localize the text in a label like:
<Label Text="{x:Static resources:AppResources.Text}"/>

为资源命名空间:

我还可以绑定一些值并为标签添加字符串格式:
<Label Text="{Binding Value, StringFormat='The value is: {0}' }"/>

I can also bind some value and add a string format to the label:
<Label Text="{Binding Value, StringFormat='The value is: {0}' }"/>

问题在于文本值为:未本地化.

The problem is that the text The value is: is not localized.

我可以同时绑定一个值和本地化 StringFormat 两者吗?

Who can I do both, bind a value and localize the StringFormat?

推荐答案

我在 本地化 XAML

我必须将文本值是:{0} 添加到资源文件中.
我需要为翻译添加一个 IMarkupExtension.我将该类添加到与资源文件相同的命名空间中.

I had to add the text The value is: {0} to the resource file.
I needed to add an IMarkupExtension for the translation. I added the class to the same namespace as the resource file.

[ContentProperty("Text")]
public class TranslateExtension : IMarkupExtension
{
    private readonly CultureInfo _ci;

    static readonly Lazy<ResourceManager> ResMgr = new Lazy<ResourceManager>(
        () => new ResourceManager(typeof(AppResources).FullName, typeof(TranslateExtension).GetTypeInfo().Assembly));

    public string Text { get; set; }

    public TranslateExtension()
    {
        if (Device.RuntimePlatform == Device.iOS || Device.RuntimePlatform == Device.Android)
        {
            _ci = DependencyService.Get<ILocalize>().GetCurrentCultureInfo();
        }
    }

    public object ProvideValue(IServiceProvider serviceProvider)
    {
        if (Text == null)
            return string.Empty;

        return ResMgr.Value.GetString(Text, _ci) ?? Text;
    }
}

并像这样使用它:

<Label Text="{Binding Value, StringFormat={resources:Translate LabelTextTheValueIs}}"/>

这篇关于Xamarin.Forms 中标签 StringFormat 的本地化的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！