Notes for screen conversion in iOS 6

More detailed discussion can refer to http://www.cocoachina.com/bbs/read.php? Tid = 116091

The method for supporting screen flip in iOS 6 is different from that in IOS 4 and 5. Do the following:Code. Otherwise, the subview will not be flipped after the hardware is flipped.

-(Ibaction) clickbaritemchart :( ID) sender {If ([[uidevice currentdevice]. systemversion floatvalue] <6.0) {// warning: addsubview doesn' t work on ios6 nslog (@ "running version less than 6.0"); [Window addsubview: chartviewcontroller. view];} else {// use this method on ios6 nslog (@ "running version greater than 6.0"); [Window setrootviewcontroller: chartviewcontroller]; [Window addsubview: chartviewcontroller. view];} [Window makekeyandvisible];}