Mobile Apps Developer Question:
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Tell us how To Respond To State Transitions On Your App?

Answer:

On state transitions can be responded to state changes in an appropriate way by calling corresponding methods on app's delegate object.

Example:
☛ applicationDidBecomeActive method can be used to prepare to run as the foreground app.
☛ applicationDidEnterBackground method can be used to execute some code when app is running in the background and may be suspended at any time.
☛ applicationWillEnterForeground method can be used to execute some code when your app is moving out of the background
☛ applicationWillTerminate method is called when your app is being terminated.

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