What is the difference between copies & retain in iOS operating system?
What do you mean by rest?
What is nsmanagedobjectcontext? What are the different concurrency types? Explain each type.
Can my application have multiple models?
Which object is create by uiapplicationmain function at app launch time?
Arc is compile time or run time feature?
What’s the difference between mkannotation and mkpointannotation?
How can a user respond or react to the state transitions on the app?
Do you know which json framework is supported by ios?
If you use location services in your app, will it drain your battery.if yes? How can we avoid?
How to fix tableviewcell dequeue issue ?
Explain the application lifecycle in ios?
How respond to state transitions on your app in ios?
What is meaning of 'retain' keyword?
What is nsfetchedresultscontroller? How do you turn on content monitoring?