What is the first responder and responder chain?
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What is delegate in ios objective c?
Is ios development hard?
What is suspended state in ios?
Define 'strong' keyword?
What is @synthesize in objective-c ?
What is nspersistentstorecoordinator? What duties does it perform?
What are layer objects and what do they represent?
Define content offset?
Explain place holder constraint
What is the difference between stack and heap?
How do you stop apps running in the background on ios?
Multitasking support is available from which version?