For OSX , we can use the NSSharingServicePicker which is very similar to UIActivityViewController for iOS:
NSSharingServicePicker *sharingServicePicker = [[NSSharingServicePicker alloc] initWithItems:urls];
sharingServicePicker.delegate = self;
[sharingServicePicker showRelativeToRect:[sender bounds]
ofView:sender
preferredEdge:NSMinYEdge];