NSRunningApplication terminate() returning false

Question

Building a macOS app that gets the currently active NSRunningApplication.

public func findActiveApp() -> NSRunningApplication? {
    for app in NSWorkspace.shared.runningApplications {
        if app.isActive {
            return app
        }
    }
    return nil
}

After that, I'm just trying to terminate the application using

let app = findActiveApp()
app.terminate()

It's not terminating the application and returning false (this is for any app not just a specific one).

I have also tried app.forceTerminate().

Please note that I have already added my application to the Accessibility list in System Preferences.

Do you have any clue to what might be the cause of this?

Thanks!

I'd appreciate if somebody can let me know if code-signing, App Sandboxing, and Run Schemes have anything to do with allowing me to terminate the NSRunningApplication. — Jad El Jerdy, Oct 24 '18 at 16:38

score 1 · Answer 1 · answered Oct 24 '18 at 17:08

For a sandboxed app, you'll need to add the "com.apple.security.temporary-exception.apple-events" entitlement, like:

<key>com.apple.security.temporary-exception.apple-events</key>
<array>
    <string>com.my.company.AppId</string>
</array>

Note, though, that it may be rejected from an app store submission unless you have a good explanation for the need for the entitlement.

NSRunningApplication terminate() returning false

1 Answers1