Bar button item does not show up from UISplitViewController delegate's splitViewController:willHideViewController:

Bar button item does not show up from UISplitViewController delegate's
splitViewController:willHideViewController:

References

Reference NO 1

http://stackoverflow.com/questions/15201044/bar-button-item-does-not-show-up-from-uisplitviewcontroller-delegates-splitview

Reference NO 2

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

Reference NO 3

http://www.i4-apps.com/splitviewcontroller-popovers/

Reference NO 4

http://iphonedevsdk.com/forum/iphone-sdk-development/84344-ipad-popover-button-not-visible-uisplitviewcontrollerdelegate-not-firing.html

Reference NO 5

http://www.raywenderlich.com/29469/ipad-for-iphone-developers-101-in-ios-6-uisplitview-tutorial

Reference NO 6

http://www.apeth.com/iOSBook/ch22.html

Reference NO 7

https://www.erianna.com/persistant-popover-in-uisplitviewcontroller

Reference NO 8

http://starbugs.diandian.com/post/2013-04-16/40048798423