What is the purpose of UIWindow object in iOS operating system?
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What is object graph in ios?
What is synchronous vs. Asynchronous in gcd ?
Which is the state an app reaches briefly on its way to being suspended?
Explain application states
Explain the difference between frame and bounds?
What is the 'interface' and 'implementation'?
What are ui elements and some common ways you can add them to your app?
What is mvc in ios?
Can we use ssl to encrypt the app communication?
How do you setup/initialise a core data stack in your application?
What is id in ios?
Does ios support multitasking?