NSSharingService.perform() 与发送到照片

Question

在 MacOS（Catalyst 应用程序，但 AppKit 捆绑包）上，我在主应用程序菜单中从菜单委托“动态”创建共享子菜单，如下所示：

func menuWillOpen(_ menu: NSMenu) {

    self.provider = NSItemProvider(contentsOf: url)! //url points to existing temporary file of type .png
    
    menu.removeAllItems()
    let srvcs = NSSharingService.sharingServices(forItems: [self.provider!])
    for srv in srvcs {
        let it = NSMenuItem(title: srv.menuItemTitle, action: #selector(openSharingService), keyEquivalent: "")
        it.image = srv.image
        it.representedObject = srv
        it.target = self
        
        menu.addItem(it)
    }
}
@objc private func openSharingService(sender: NSMenuItem) {
    let service = (sender.representedObject as! NSSharingService)
    service.perform(withItems: [self.provider!])
}

它适用于任何共享类型，但“发送到照片”除外。使用“发送到照片”时，我在控制台中收到此错误：

2021-10-27 08:59:02.042220+0200 Calculator2[14383:7732689] [xpc.exceptions] <NSXPCConnection: 0x6000008470c0> connection to service on pid 14388 named com.apple.share.System.add-to-iphoto.apple-extension-service: Exception caught during decoding of received selector _completeRequestReturningItems:forExtensionContextWithUUID:completion:, dropping incoming message.
Exception: Exception while decoding argument 0 (#2 of invocation):
Exception: value for key 'NS.objects' was of unexpected class 'NSURL (0x7fff801889e8) [/System/Library/Frameworks/CoreFoundation.framework]'. Allowed classes are '{(
    "NSDate (0x7fff80188600) [/System/Library/Frameworks/CoreFoundation.framework]",
    "NSString (0x7fff801ba8d0) [/System/Library/Frameworks/Foundation.framework]",
    "NSNumber (0x7fff801ba3a8) [/System/Library/Frameworks/Foundation.framework]",
    "NSData (0x7fff801885d8) [/System/Library/Frameworks/CoreFoundation.framework]",
    "NSDictionary (0x7fff80188650) [/System/Library/Frameworks/CoreFoundation.framework]",
    "NSArray (0x7fff80188510) [/System/Library/Frameworks/CoreFoundation.framework]"
)}'.

照片应用程序已打开并添加了图像，但我的应用程序收到上述错误并且其菜单全部变灰，直到重新启动。我是不是做错了什么？

编辑：我试过这样调用服务（传递 NSImage）：

            self.provider!.loadDataRepresentation(forTypeIdentifier: "public.png", completionHandler: {(data, error) in
                let img = NSImage(data: data!)
                DispatchQueue.main.async {
                    service.perform(withItems: [img])
                }
           })

... 它失败并出现完全相同的错误。再次抱怨 NSURL，即使我根本不通过 NSURL。

Answer 1

所以我找不到错误，但我设法解决了这个问题。我将以下代码添加到我的 func openSharingService() 中，以便识别添加到照片并以不同的方式处理它：

if ( (service == NSSharingService(named: .addToIPhoto)) && (self.provider!.hasItemConformingToTypeIdentifier("public.png")) ) {
        self.provider!.loadObject(ofClass: NSURL.self, completionHandler: {(val, error) in
            //print(val)
            DispatchQueue.main.async {
                let u = val as! NSURL
                self.photosHandler(u)
                NSWorkspace.shared.launchApplication("Photos")
            }
        })
    }

self.photosHandler 是从我的催化剂应用程序包中填充的回调，它使用 PHPhotoLibrary 添加照片：

PHPhotoLibrary.requestAuthorization(for: .addOnly, handler: self.OnAuthorizationDone)

（OnAuthorizationDone() 也必须使用 PHPhotoLibrary.shared().performChanges() 和 PHAssetChangeRequest.creationRequestForAssetFromImage() 实现）

NSSharingService.perform() 与发送到照片

NSSharingService.perform() with Send To Photos

swift

macos

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