NSOpenPanel in Swift . How to open?

Question

I have this Objective-C Code :

- (IBAction)selectFileButtonAction:(id)sender {

    //create open panel...
    NSOpenPanel* openPanel = [NSOpenPanel openPanel];         


        

Answer 1

Swift 4 version:

let openPanel = NSOpenPanel()
        openPanel.canChooseFiles = false
        openPanel.allowsMultipleSelection = false
        openPanel.canChooseDirectories = false
        openPanel.canCreateDirectories = false
        openPanel.title = "Select a folder"

        openPanel.beginSheetModal(for:self.view.window!) { (response) in
            if response.rawValue == NSFileHandlingPanelOKButton {
                let selectedPath = openPanel.url!.path
                // do whatever you what with the file path
            }
            openPanel.close()
        }

Answer 2

@IBAction func selectAnImageFromFile(sender: AnyObject) {
    let openPanel = NSOpenPanel()
    openPanel.allowsMultipleSelection = false
    openPanel.canChooseDirectories = false
    openPanel.canCreateDirectories = false
    openPanel.canChooseFiles = true
    openPanel.beginWithCompletionHandler { (result) -> Void in
        if result == NSFileHandlingPanelOKButton {
            //Do what you will
            //If there's only one URL, surely 'openPanel.URL'
            //but otherwise a for loop works
        }
    }
}

I'm guessing you got stuck on the completion handler part? In any case, handling the URL from the open panel should be ok from there, but comment if you want me to add more. :)

Answer 3

For Swift 4 the check of the response should be

if response == .OK { 
  ... 
}

Answer 4

my two cents for swift 5.0

override func showChooseFileDialog(title: String){
    let openPanel = NSOpenPanel()
    openPanel.canChooseFiles = false
    openPanel.allowsMultipleSelection = false
    openPanel.canChooseDirectories = false
    openPanel.canCreateDirectories = false
    openPanel.title = title

    openPanel.beginSheetModal(for:self.view.window!) { (response) in
        if response == .OK {
            let selectedPath = openPanel.url!.path
            // do whatever you what with the file path
        }
        openPanel.close()
    }
}

Answer 5

In SwiftUI

    struct FileView: View {
    var body: some View {
        Button("Press Me") {
            let openPanel = NSOpenPanel()
            openPanel.prompt = "Select File"
            openPanel.allowsMultipleSelection = false
                openPanel.canChooseDirectories = false
                openPanel.canCreateDirectories = false
                openPanel.canChooseFiles = true
                openPanel.begin { (result) -> Void in
                    if result.rawValue == NSApplication.ModalResponse.OK.rawValue {
                        let selectedPath = openPanel.url!.path
                        print(selectedPath)

                    }
                }
           }
        }
     }