Quick use of unresolved identifier 'UIApplicationStateInactive'

Question

In my Swift code to handle push notification, I have this line:

if ( application.applicationState == UIApplicationStateInactive  || application.applicationState == UIApplicationStateBackground) {
}

What causes the compilation error: using the unresolved identifier "UIApplicationStateInactive"

Am I missing some import files?

thank

Answer 1

You are currently using identifiers for Objective-C. You need to use the id for quick:

UIApplicationState.Inactive // equals UIApplicationStateInactive
UIApplicationState.Background // equals UIApplicationStateBackground

Apple Documentation for:

• Swift
• Objective-c

You can check the documentation for both languages ​​in the Apple documentation and select the language in the upper right corner.