的MonoMac NSWorkspace.RecycleUrls与recycleURLs：completionHandler

Question

根据the MonoMac documentation为NSWorkspace.RecycleUrls签名是：

[MonoMac.Foundation.Export("recycleURLs:completionHandler:")] 
public virtual void RecycleUrls (MonoMac.Foundation.NSDictionary urls, NSWorkspaceUrlHandler completionHandler) 

根据Apple's documentation for NSWorkspacerecycleURLs:completionHandler为签名是：

- (void)recycleURLs:(NSArray *)URLs completionHandler:(void (^)(NSDictionary *newURLs, NSError *error))handler 

我有网址的阵列我想要回收。

在这里我很难倒 - Apple的文档说第一个参数是NSArray，但是MonoMac想要一个NSDictionary。所有构建NSDictionary的函数都需要键值和值（不出所料），而我只有值。

除了采用MonoMac的RecycleUrls（转载如下）并将其改写为NSArray之外，还有什么要做吗？

[Export("recycleURLs:completionHandler:")] 
public unsafe virtual void RecycleUrls(NSDictionary urls, NSWorkspaceUrlHandler completionHandler) 
{ 
    if (urls == null) 
    { 
     throw new ArgumentNullException("urls"); 
    } 
    if (completionHandler == null) 
    { 
     throw new ArgumentNullException("completionHandler"); 
    } 
    BlockLiteral blockLiteral = default(BlockLiteral); 
    blockLiteral.SetupBlock(NSWorkspace.static_InnerNSWorkspaceUrlHandler, completionHandler); 
    if (this.IsDirectBinding) 
    { 
     Messaging.void_objc_msgSend_IntPtr_IntPtr(base.Handle, NSWorkspace.selRecycleURLsCompletionHandler_, urls.Handle, (IntPtr)((void*)(&blockLiteral))); 
    } 
    else 
    { 
     Messaging.void_objc_msgSendSuper_IntPtr_IntPtr(base.SuperHandle, NSWorkspace.selRecycleURLsCompletionHandler_, urls.Handle, (IntPtr)((void*)(&blockLiteral))); 
    } 
    blockLiteral.CleanupBlock(); 
} 

Answer 1

Mono的结合是不正确的，我都修改了NSWorkspace.RecycleUrls()和NSWorkspace.DuplicateUrls()采取的NSArray，而不是NSDictionary，monomac commit b1eda57。

这是生成的代码：

[Export ("recycleURLs:completionHandler:")] 
    public unsafe virtual void RecycleUrls (NSArray urls, NSWorkspaceUrlHandler completionHandler) 
    { 
     if (urls == null) 
      throw new ArgumentNullException ("urls"); 
     if (completionHandler == null) 
      throw new ArgumentNullException ("completionHandler"); 
     BlockLiteral *block_ptr_completionHandler; 
     BlockLiteral block_completionHandler; 
     block_completionHandler = new BlockLiteral(); 
     block_ptr_completionHandler = &block_completionHandler; 
     block_completionHandler.SetupBlock (static_InnerNSWorkspaceUrlHandler, completionHandler); 

     if (IsDirectBinding) { 
      MonoMac.ObjCRuntime.Messaging.void_objc_msgSend_IntPtr_IntPtr (this.Handle, selRecycleURLsCompletionHandler_, urls.Handle, (IntPtr) block_ptr_completionHandler); 
     } else { 
      MonoMac.ObjCRuntime.Messaging.void_objc_msgSendSuper_IntPtr_IntPtr (this.SuperHandle, selRecycleURLsCompletionHandler_, urls.Handle, (IntPtr) block_ptr_completionHandler); 
     } 
     block_ptr_completionHandler->CleanupBlock(); 

    } 

    [Export ("duplicateURLs:completionHandler:")] 
    public unsafe virtual void DuplicateUrls (NSArray urls, NSWorkspaceUrlHandler completionHandler) 
    { 
     if (urls == null) 
      throw new ArgumentNullException ("urls"); 
     if (completionHandler == null) 
      throw new ArgumentNullException ("completionHandler"); 
     BlockLiteral *block_ptr_completionHandler; 
     BlockLiteral block_completionHandler; 
     block_completionHandler = new BlockLiteral(); 
     block_ptr_completionHandler = &block_completionHandler; 
     block_completionHandler.SetupBlock (static_InnerNSWorkspaceUrlHandler, completionHandler); 

     if (IsDirectBinding) { 
      MonoMac.ObjCRuntime.Messaging.void_objc_msgSend_IntPtr_IntPtr (this.Handle, selDuplicateURLsCompletionHandler_, urls.Handle, (IntPtr) block_ptr_completionHandler); 
     } else { 
      MonoMac.ObjCRuntime.Messaging.void_objc_msgSendSuper_IntPtr_IntPtr (this.SuperHandle, selDuplicateURLsCompletionHandler_, urls.Handle, (IntPtr) block_ptr_completionHandler); 
     } 
     block_ptr_completionHandler->CleanupBlock(); 

    } 

快速测试：

void TestUrls() 
    { 
     var path = Path.GetTempFileName(); 
     Console.WriteLine ("TEST: {0} {1}", path, File.Exists (path)); 

     var array = new NSMutableArray(); 
     var url = new NSUrl ("file://" + path); 
     array.Add (url); 

     var workspace = NSWorkspace.SharedWorkspace; 
     workspace.DuplicateUrls (array, (urls, error) => { 
      Console.WriteLine ("DUPLICATED: {0} {1}", urls, error); 
      array.Add (urls.Values [0]); 

      workspace.RecycleUrls (array, (urls2, error2) => { 
       Console.WriteLine ("RECYCLED: {0} {1} {2}", 
            urls2, error2, File.Exists (path)); 
      }); 
     }); 
    }