I'm trying to add a clickable button to status bar. If I compile I get no errors but button action does not work. I think it's because of the legacy code but I can't find the issue.
The code in AppDelegate.swift
import Cocoa
@NSApplicationMain
class AppDelegate: NSObject, NSApplicationDelegate {
let statusItem = NSStatusBar.system().statusItem(withLength: NSVariableStatusItemLength);
let menu = NSMenu();
func applicationDidFinishLaunching(_ aNotification: Notification) {
// Insert code here to initialize your application
if let button = statusItem.button {
button.image = NSImage(named: "globe")
button.action = Selector("showWeather")
}
}
func applicationWillTerminate(_ aNotification: Notification) {
// Insert code here to tear down your application
}
func showWeather(sender: NSStatusBarButton) {
print("Shunshine");
}
}
I get a warning, but If I apply, code does not work neither. I'm compiling a cocoa app for macOS 10.2.
Again, this is really a forums.developer.apple.com question, but the reason it didn't work is more about Swift.
The @objc selector corresponding to your showWeather function is actually "showWeatherWithSender:". That's because there's been a change since Swift 2.1 where the first argument's external label now defaults to sender, not _. So you really should have declared the function like this:
However, there's a second problem. Colons matter in selectors. Even with the above revised declaration, the selector string should be "showWeather:", not "showWeather".
Of course, using #selector takes care of all these details for you, so you got to the right answer in the end.
Thanks Quincey for your help. I'm learning right now. I have zero background on Swift programing language and sometimes lose a lot of time in specific Swift related details. Not to mention Swift changes from version to version and some tutorials get outdated with frequency.
