How can an operating system improve battery life while running an app in iOS operating system?
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Explain shallow copying and depth copying.
What is reference count in ios?
are you using charlesproxy ? Why/why not ?
How we can execute some code when app is in background?
What is xcode used for?
How many types of background modes supported in ios?
How are non-atomic and atomic properties different?
What are selectors in objective-c?
You wish to define your custom view. Which class will be subclassed?
Explain code signing in ios?
What is thread safe?
What is the first responder and responder chain?