NSSavePanel缺少"shouldRunSavePanelWithAccessoryView“键吗？

Question

我有下面的代码，它在我的SwiftUI macOS应用程序中显示了一个保存面板。

它需要能够显示文件格式选择器，该选择器在标准附件视图中可用。

然而，启用此视图的关键似乎丢失了(类型为“NSSavePanel”的值没有成员“shouldRunSavePanelWithAccessoryView”)，并且我找不到任何关于何时删除此视图的引用，也找不到任何替代方法。

有没有聪明人知道怎么回事？

代码：

private func saveToFile() {
    appState.triggerViewUpdate.toggle()
    
    let panel = NSSavePanel()
    
    panel.nameFieldLabel = "Save adjusted image as:"
    panel.nameFieldStringValue = "adjustedimage.png"
    panel.canCreateDirectories = true
    panel.showsTagField = false
    panel.isExtensionHidden = false

    
    // this generates error "Value of type 'NSSavePanel' has no member 'shouldRunSavePanelWithAccessoryView'"
    panel.shouldRunSavePanelWithAccessoryView = true
    //
    
    
    if #available(OSX 11.0, *) {
        let allowedContentTypes = [UTType.png, UTType.jpeg]
        panel.allowedContentTypes = allowedContentTypes
    } else {
        let allowedFileTypes = [".png", ".jpeg"]
        panel.allowedFileTypes = allowedFileTypes // not sure if we need this
    }
    
    panel.begin { response in
        if response == NSApplication.ModalResponse.OK, let savePath = panel.url {
            if debug { print("savePath: \(savePath)") }

            let ciImage = applyFilters(textureIn: appState.imageTexture!)
            let cgImage = ciImage.asCGImage()
                            
            let nsImage = NSImage(cgImage: cgImage!, size: ciImage.extent.size)
            if nsImage.pngWrite(to: savePath) {
                print("File saved")
            }
        }
    }
}

Answer 1

我设法用IKSaveOptions解决了这个问题

    let panel = NSSavePanel()
    let options = IKSaveOptions(imageProperties: [:],
                                imageUTType: kUTTypeImage as String)!
    options.addAccessoryView(to: panel)

    panel.begin { response in
         if response == .OK, let savePath = panel.url {
            //...
         }
    }