Forms
右键新建文件夹 Localization
新建文件TranslateExtension.cs
namespace Localization
{
/// <summary>
/// xaml 文件本地化
/// </summary>
[ContentProperty("Text")]
public class TranslateExtension : IMarkupExtension
{
/// <summary>
/// 本地资源对象
/// </summary>
readonly CultureInfo ci;
/// <summary>
/// 反射用命名空间常量
/// </summary>
const string ResourceId = "BarCode.Localization.TextResources";
/// <summary>
/// 构造函数 本地化对象根据抽象实现对象获取
/// </summary>
public TranslateExtension()
{
ci = DependencyService.Get<ILocalize>().GetCurrentCultureInfo();
}
/// <summary>
/// 文本对象属性
/// </summary>
public string Text { get; set; }
/// <summary>
/// 获取数据值显示用于xaml
/// </summary>
/// <param name="serviceProvider"></param>
/// <returns></returns>
public object ProvideValue(IServiceProvider serviceProvider)
{
if (Text == null)
return "";
ResourceManager resmgr = new ResourceManager(ResourceId
, typeof(TranslateExtension).GetTypeInfo().Assembly);
var translation = resmgr.GetString(Text, ci);
if (translation == null)
{
#if DEBUG
throw new ArgumentException(
String.Format("Key '{0}' was not found in resources '{1}' for culture '{2}'.", Text, ResourceId, ci.Name),
"Text");
#else
translation = Text; // HACK: returns the key, which GETS DISPLAYED TO THE USER
#endif
}
return translation;
}
}
}
新建抽象接口ILocalize.cs
/// <summary>
/// 定义一个接口暴露用户的首选UICulture 本地资源化对象
/// </summary>
public interface ILocalize
{
CultureInfo GetCurrentCultureInfo();
}
新建资源文件TextResources.resx
新建TextResources.en-US.resx
名称相同（key）一致，值区分语言。
新建xaml文件Multilingualism.xaml
<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
x:Class="XMD1.Page.Multilingualism"
xmlns:i18n="clr-namespace:Localization">
<StackLayout >
<!--<BoxView AbsoluteLayout.LayoutBounds="0.25, 0.25, 0.5, 0.5"
Color="Blue"
AbsoluteLayout.LayoutFlags="All" />-->
<Label Text="{i18n:Translate About_Context}" VerticalOptions="Center" HorizontalOptions="Center" x:Name="lab"/>
<Button Text="中文" Clicked="zhclicked" HorizontalOptions="Start" />
<Button Text="英文" x:Name="enbtn" HorizontalOptions="End"/>
</StackLayout>
</ContentPage>Android
同目录、实现接口
using Localization;
using Xamarin.Forms;
[assembly: Dependency(typeof(Localize))]
namespace Localization
{
/// <summary>
/// Android 本地资源化实现对象
/// </summary>
public class Localize : ILocalize
{
public System.Globalization.CultureInfo GetCurrentCultureInfo()
{
var androidLocale = Java.Util.Locale.Default;
var netLanguage = androidLocale.ToString().Replace("_", "-"); // turns pt_BR into pt-BR
return new System.Globalization.CultureInfo(netLanguage);
}
}
}
IOS
同目录、实现接口
using Foundation;
using Localization;
using System;
using Xamarin.Forms;
[assembly: Dependency(typeof(Localize))]
namespace Localization
{
/// <summary>
/// ios 本地资源化实现对象
/// </summary>
public class Localize: ILocalize
{
public System.Globalization.CultureInfo GetCurrentCultureInfo()
{
var netLanguage = "en";
var prefLanguageOnly = "en";
if (NSLocale.PreferredLanguages.Length > 0)
{
var pref = NSLocale.PreferredLanguages[0];
prefLanguageOnly = pref.Substring(0, 2);
if (prefLanguageOnly == "pt")
{
if (pref == "pt")
pref = "pt-BR"; // get the correct Brazilian language strings from the PCL RESX (note the local iOS folder is still "pt")
else
pref = "pt-PT"; // Portugal
}
netLanguage = pref.Replace("_", "-");
Console.WriteLine("preferred language:" + netLanguage);
}
System.Globalization.CultureInfo ci = null;
try
{
ci = new System.Globalization.CultureInfo(netLanguage);
}
catch
{
// iOS locale not valid .NET culture (eg. "en-ES" : English in Spain)
// fallback to first characters, in this case "en"
ci = new System.Globalization.CultureInfo(prefLanguageOnly);
}
return ci;
}
}
}
参考一下布局
https://developer.xamarin.com/guides/xamarin-forms/controls/layouts/