App lifecycle and system
App entry point and UIApplicationMain
Which of these does the AppDelegate marked @main (or the UIApplicationMain call) do at launch? Pick all that apply.
Pick all that apply
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App lifecycle and systemShort answerIntro
What kind of object is AppDelegate, and which events does it handle?
#launch
App lifecycle and systemShort answerBasics
From the moment the app icon is tapped on the home screen until the first screen is drawn…
#uiapplicationmain
ConcurrencyShort answerIntro
In a UIKit screen you set label.text = result inside a network response callback, and som…
#runloop
ConcurrencyShort answerBasics
While the user scrolls, an on-screen countdown Timer stops, and when scrolling ends it ca…
#runloop