Is it possible to write a program without using nib file
What is category and class extension?
What is the mean of not running state in ios?
what is the difference between nonatomic & atomic
Which devices will this work with ios?
How we can wait for some thread to finish before starting another?
Explain the difference between NSOperationQueue concurrent and non-concurrent in iOS operating system?
What are kvo and kvc?
Explain retain counts in iOS operating system?
Will iphone 7 get ios 13?
What is use of uiapplication class?
What is application lifecycle in ios?
What is mvc in ios?