NSString assume casual values after app goes in background

NSString assume casual values after app goes in background

References

Reference NO 1

http://stackoverflow.com/questions/15185517/nsstring-assume-casual-values-after-app-goes-in-background

Reference NO 2

http://www.raywenderlich.com/13541/how-to-create-an-app-like-instagram-with-a-web-service-backend-part-22

Reference NO 3

http://forums.macrumors.com/showthread.php?t=981230

Reference NO 4

http://juliankniephoff.wordpress.com/2011/03/27/use-objective-c-classes-in-cpp-opaquely-readably-and-safely/

Reference NO 5

https://mobileappmastery.com/blog/

Reference NO 6

http://www.zenisoft.cn/calibre/get/pdf/1048

Reference NO 7

http://vikashraj144blog.files.wordpress.com/2013/03/apress-objective-c-for-absolute-beginners-2nd-edition-dec-2011.pdf

Reference NO 8

http://csatha.blogspot.com/2012/10/objective-c-interview-questions.html