您要问的是在应用程序中提供真正皮肤所需的功能组件。从单独的程序集中获取资源涉及从其他程序集中读取已编译的 XAML 或BAML。这是我在皮肤库中用于从程序集中检索 BAML 的方法:
//Relevant Namespaces:
//using System.Windows.Baml2006;
//using System.Xaml;
public static List<Stream> GetBamlStreams(AssemblyName skinAssemblyName)
{
List<Stream> bamlStreams = new List<Stream>();
Assembly skinAssembly = Assembly.Load(skinAssemblyName);
string[] resourceDictionaries = skinAssembly.GetManifestResourceNames();
foreach (string resourceName in resourceDictionaries)
{
ManifestResourceInfo info = skinAssembly.GetManifestResourceInfo(resourceName);
if (info.ResourceLocation != ResourceLocation.ContainedInAnotherAssembly)
{
Stream resourceStream = skinAssembly.GetManifestResourceStream(resourceName);
using (ResourceReader reader = new ResourceReader(resourceStream))
{
foreach (DictionaryEntry entry in reader)
{
//TODO: Figure out if this is a ResourceDictionary I care about
//Key will be name of the RD (BrushResources.baml, in your case)
if (IsRelevantResource(entry))
{
bamlStreams.Add(entry.Value as Stream);
}
}
}
}
}
return bamlStreams;
}
然后,要将 BAML 转换为特定资源,请执行以下操作:
//If .NET 3.5, need this initialization:
//Type xamlType = typeof(System.Windows.Markup.XamlReader);
//LoadBamlMethod = xamlType.GetMethod(LOAD_BAML_METHOD, BindingFlags.NonPublic | BindingFlags.Static);
public static T LoadBaml<T>(Stream stream)
{
//For .net 3.5:
//ParserContext parserContext = new ParserContext();
//object[] parameters = new object[] { stream, parserContext, null, false };
//object bamlRoot = LoadBamlMethod.Invoke(null, parameters);
//return (T)bamlRoot;
//For .net 4.0
var reader = new Baml2006Reader(stream);
var writer = new XamlObjectWriter(reader.SchemaContext);
while (reader.Read())
writer.WriteNode(reader);
return (T)writer.Result;
}
为了将来自其他程序集的资源合并到当前程序集中:
private void LoadResources()
{
List<Stream> bamlStreams = GetBamlStreams(FullName);
foreach (Stream stream in bamlStreams)
{
ResourceDictionary rd = LoadBaml<ResourceDictionary>(stream);
Application.Current.Resources.MergedDictionaries.Add(rd)
}
}
此示例以非常通用的方式完成蒙皮的工作,但如有必要,您可以对其进行简化以实现您的特定目标。您可以在 github 上看到一个使用此方法的皮肤库,并提供一些示例进行演示。