gbdavid gbdavid - 1 year ago 129
Swift Question

How can I read the user selection for OS X menu bar in Xcode (Swift)

I'm creating an agent app for OS X in swift (only showing the app icon in the menu bar). I'm loading the icon for the app from the AppDelegate using:

statusItem.image = NSImage(named: "BlackIcon")

and it works fine.

However, if the user has chosen to use the dark menu bar from the System Preferences -> General, the user won't see the icon as it's black.

enter image description here

So I need to display a different 'WhiteIcon' to the user if they have the option selected.

How can I check whether the user has this option active from my app?

Zhr Zhr
Answer Source

It appears that you are trying to invert menulet icon color for dark mode. By default OSX handles darkmore and inverts the image color, however you need to specifically add [image setTemplate:YES] to have this work for you if it already doesnt.


self.statusItem = [[NSStatusBar systemStatusBar]     
NSImage *image = [NSImage imageNamed:@"statusItemIcon"];
[image setTemplate:YES];
[self.statusItem setImage:image];

swift: (Originally answered by Zhi-Wei Cai at link below)

var isDark = false

func isDarkMode() {
isDark = NSAppearance.currentAppearance().name.hasPrefix("NSAppearanceNameVibrantDark")

override func drawRect(dirtyRect: NSRect) {
// Now use "isDark" to determine the drawing colour.
if isDark {
    // ...
 } else {
    // ...

This answer explains it in the detail: NSStatusItem change image for dark tint

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