CODEWITHSUNDEEP
iosobjective-cappdelegate
nOOb iOS
nOOb iOS

Reputation: 1394

How to find out whether iphone app is killed and relaunched again?

How will I know in appDidBecomeActive that 1. app is launched from the background 2. app is killed and launched from menu again.

How can I differentiate between these two?

Upvotes: 0

Views: 88

Answers (1)

rmaddy
rmaddy

Reputation: 318794

When an app is fully relaunched, didFinishLaunchingWithOptions is called. When returning from the background, didEnterForeground is called.

Keep in mind that didBecomeActive can be called in other cases besides those two. A system alert might appear while the user is using your app. When the alert is dismissed, your app becomes active again. And in this case it wasn't in the background and it wasn't relaunched.

The only way for didBecomeActive to know why it became active is to set a flag in didFinishLaunchingWithOptions and didEnterForeground and check that value in didBecomeActive.

Upvotes: 2

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