IOS Questions

IOS development requires Intel-based Macintosh computer and iOS SDK

An app can get into InActive state when the user locks the screen or the system prompts the user to respond to some event e.g. SMS message, incoming call etc.

The Apple compilers are based on the compilers of the GNU Compiler Collection.

IOS 4 and above supports multi-tasking and allows apps to remain in the background until they are launched again or until they are terminated.  

IOS - 6.1.3 (updated on 5/15/13 3:15 AM Pacific Daylight Time)

1.Map beautifully designed from the ground up (and the sky down)

2.Integration of Facebook with iOS

3.shared photo streams.

4.Passbook - boarding passes, loyalty cards, retail coupons, cinema tickets and more all in one place

5.Facetime - on mobile network as wifi

6.changed Phone app - *remind me later, *reply with message.

7.Mail - redesigned more streamline interface.

8.Camera with panorama . 

ARC is a compiler-level feature that simplifies the process of managing the lifetimes of Objective-C objects. Instead of you having to remember when to retain or release an object, ARC evaluates the lifetime requirements of your objects and automatically inserts the appropriate method calls at compile time.