Should I get UIPasteboardChangedNotification when another app changes the clipboard?

Dear Experts,

My app is observing UIPasteboardChangeNotification in order to enable/disable its paste button.

I do not seem to be getting any notifications when other apps copy to the clipboard. For example, if I have my app and Safari in split-screen on my iPad and I copy something in Safari, I don't see the notification. Similarly if I switch to Safari, copy something, and switch back to my app, I do not get the notification either when I'm in the background or when I return to the foreground.

The only time that I see UIPasteboardChangedNotification is when the clipboard is modified by my app itself.

Is this supposed to work? Is there some other way to get notified when the clipboard is changed by another app?

Thanks.

Should I get UIPasteboardChangedNotification when another app changes the clipboard?
 
 
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