ios 判断横竖屏的方法
或者在有statusbar情况下UIInterfaceOrientationIsLandscape([[UIApplication sharedApplication] statusBarOrientation])UIInterfaceOrientationIsPortrait([[UIApplication sharedApplication] statusBarOrientation])
或者在有statusbar情况下UIInterfaceOrientationIsLandscape([[UIApplication sharedApplication] statusBarOrientation])UIInterfaceOrientationIsPortrait([[UIApplication sharedApplication] statusBarOrientation])