如何使iPad上的模式视图上的翻转animation在后台透明?

如何使我的翻转animation透明,以便它后面的视图显示?

这是我的一些代码:

EditInfoViewController *editController = [[EditInfoViewController alloc] initWithNibName:@"EditInfoViewController" bundle:nil]; editController.delegate = self; UINavigationController *editNavController = [[UINavigationController alloc] initWithRootViewController:editController]; editNavController.modalPresentationStyle = UIModalPresentationCurrentContext; editNavController.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal; [self.navigationController presentModalViewController:editNavController animated:YES]; 

一张照片值1000字(这是在翻页animation中拍摄的):

在这里输入图像说明