iOS 9.3.5 监听旋转z轴不稳定

获取当前屏幕的方向；
UIInterfaceOrientation orientation = [UIApplication sharedApplication].statusBarOrientation;

   if (orientation == UIInterfaceOrientationLandscapeLeft || orientation == UIInterfaceOrientationLandscapeRight) {

                DLog(@"横屏");

            }else{
                DLog(@"竖屏");

            }