Detect if the application in background or foreground in swift

Question

is there any way to know the state of my application if it is in background mode or in foreground . Thanks

Answer 1

[UIApplication sharedApplication].applicationState will return current state of applications such as:

• UIApplicationStateActive
• UIApplicationStateInactive
• UIApplicationStateBackground

or if you want to access via notification see UIApplicationDidBecomeActiveNotification

Swift 3+

let state = UIApplication.shared.applicationState if state == .background || state == .inactive {     // background } else if state == .active {     // foreground }  switch UIApplication.shared.applicationState {     case .background, .inactive:         // background     case .active:         // foreground     default:         break } 

Objective C

UIApplicationState state = [[UIApplication sharedApplication] applicationState]; if (state == UIApplicationStateBackground || state == UIApplicationStateInactive) {     // background } else if (state == UIApplicationStateActive) {     // foreground } 

Answer 2

Swift 3

  let state: UIApplicationState = UIApplication.shared.applicationState              if state == .background {                  // background             }             else if state == .active {                  // foreground             }