What is delegate and protocol in ios?
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What are “strong” and “weak” references? Why are they important and how can they be used to help control memory management and avoid memory leaks?
In mapKit frame work, how to get current user location
Explain the difference between viewdidload and viewdidappear?
How many bytes we can send to apple push notification server?
Bundle & document directory, sandbox ?
What is nsmanagedobject?
How would you create your own custom view in iOS operating system?
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How does the runtime handle message passing? What is message forwarding?
Multitasking support is available from which version in iOS operating system?
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What is an ios framework?
When dealing with property declarations, what is the difference between atomic and non-atomic?
What is the difference between atomic and nonatomic properties? Which is the default for synthesized properties?