How can we achieve singleton pattern in iOS?
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What are the viewcontroller lifecycle in ios?
Difference between release and autorelease ?
What are ios apps coded in?
What is background mode in ios?
What is UITableView?
what are all instruments available in Xcode?
Which are the app’s state transitions when it is launched?
What is the 'interface' and 'implementation'?
. Name the app sate which it reaches briefly on its way to being suspended
What major changes released in ios7, ios8, ios9+?
What is 'private', 'protected' and 'public' ?
If you run an application on device , which has location services.Which location it will show first ?