pick a folder.swift

func selectFolder(){
    let openPanel = NSOpenPanel();
    openPanel.title = "Select a folder to watch for videos"
    openPanel.message = "Videos you drop in the folder you select will be converted to animated gifs"
    openPanel.showsResizeIndicator=true;
    openPanel.canChooseDirectories = true;
    openPanel.canChooseFiles = false;
    openPanel.allowsMultipleSelection = false;
    openPanel.canCreateDirectories = true;
    openPanel.delegate = self;
    
    openPanel.beginWithCompletionHandler { (result) -> Void in
        if(result == NSFileHandlingPanelOKButton){
            let path = openPanel.URL!.path!
            // do something
        }
    }
}