Which object is create by uiapplicationmain function at app launch time?
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What are the different store migration options? When are they used?
What is application lifecycle in ios?
What is thread in ios?
Define 'weak' keyword?
What is nsuserdefaults?
What is the use of the UI Automation API?
Difference between categories and extensions?
. Name the framework that is used to construct application’s user interface for iOS.
Explain differentiate between release and pool drain?
How you will store user info (username, password or token) securely in ios?
What are some common execution states in ios?
What is use of nsoperation? How nsoperationque works?