How can Objective C apps handle different app states like foreground, background, or suspended?
Objective C apps can handle different app states like foreground, background, or suspended through various system events and delegate methods. When an app moves to the foreground, the applicationWillEnterForeground() method is called, allowing the app to prepare for resuming. Similarly, when the app is about to move to the background, the applicationDidEnterBackground() method is called. This is where the app can perform any necessary cleanup tasks. Lastly, when the app is suspended, the applicationWillTerminate() method is invoked. This method allows the app to save any transient data before termination.
November 9, 2023