Display file chooser dialog

Question

How do I show a file chooser dialog on Mac OS X? The language is Objective C.

What programming language? Cocoa, carbon, etc.? What have you already tried? — Delan Azabani, Feb 26 '11 at 11:44
@Delan Azabani, If he's asking this kind of question, he's probably talking Cocoa. Maybe Java. But you're right, this is far too ambiguous right now. — Aurum Aquila, Feb 26 '11 at 11:46
Sorry the language is objective C i have not tried anything yet because right now im developing an iPhoto library API as i am awaiting an reply on this question. — Johnny Mast, Feb 26 '11 at 13:21

score 33 · Accepted Answer · edited Nov 28 '13 at 06:58

33

What you search is 'NSOpenPanel', here a example how to use:

NSOpenPanel *panel = [NSOpenPanel openPanel];
[panel setCanChooseFiles:NO];
[panel setCanChooseDirectories:YES];
[panel setAllowsMultipleSelection:YES]; // yes if more than one dir is allowed

NSInteger clicked = [panel runModal];

if (clicked == NSFileHandlingPanelOKButton) {
    for (NSURL *url in [panel URLs]) {
        // do something with the url here.
    }
}

edited Nov 28 '13 at 06:58

Brad The App Guy

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answered Feb 26 '11 at 13:31

evotopid

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Thanks a lot that did it !. Only i had to comment out the click== part as NSFileHandlingPanelOkButton as not defined. – Johnny Mast Feb 26 '11 at 13:41
It could be because of the fact that i am developing Mac OS Lion that NSFileHandlingPanelOkButton was not found. It could have been deprecated ?. – Johnny Mast Feb 26 '11 at 13:46
but, i think it's a small misspelling, try: NSFileHandlingPanelOKButton, With OK and not Ok ;-) – evotopid Feb 26 '11 at 13:56
1

It's been a while since I last programmed something using the Cocoa framework. According to [the documentation](https://developer.apple.com/Library/mac/documentation/Cocoa/Reference/ApplicationKit/Classes/NSOpenPanel_Class/index.html) you need the `@import AppKit;`... – evotopid Nov 15 '14 at 15:25

score 5 · Answer 2 · answered Jan 09 '18 at 05:46

Those who are looking for Swift version

let panel                     = NSOpenPanel()
panel.canChooseDirectories    = false
panel.canChooseFiles          = true
panel.allowsMultipleSelection = false
panel.allowedFileTypes        = ["txt"]
let clicked                   = panel.runModal()

if clicked == NSApplication.ModalResponse.OK {
    print("URLS => \(panel.urls)")
}

Display file chooser dialog

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