How would I go about running some code while the tableView is loading?

How would I go about running some code while the tableView is loading?

References

Reference NO 1

http://stackoverflow.com/questions/13586802/how-would-i-go-about-running-some-code-while-the-tableview-is-loading

Reference NO 2

http://www.raywenderlich.com/31166/25-ios-app-performance-tips-tricks

Reference NO 3

https://www.inkling.com/read/learning-ios-programming-alasdair-allan-2nd/chapter-5/edit-mode

Reference NO 4

http://useyourloaf.com/blog/2011/02/28/speeding-up-table-view-cell-loading-with-uinib.html

Reference NO 5

http://teckyy.com/categories/ios/creating-table-view-controllers-programmatically

Reference NO 6

http://developer.apple.com/library/ios/documentation/uikit/reference/UITableViewController_Class/

Reference NO 7

http://conecode.com/news/2011/05/ios-tutorial-creating-a-web-view-uiwebview/

Reference NO 8

http://www.techotopia.com/index.php/Creating_a_Simple_iOS_5_iPhone_Table_View_Application