UInavigatioController自定义动画显示iphone的白色背景

我想在uinavigation控制器中实现自定义动画。 我已经做了

 CATransition* transition = [CATransition animation];
    transition.duration = 0.20f;
transition.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseIn];
    transition.type = kCATransitionMoveIn;
    transition.subtype = kCATransitionFromTop;
    [self.navigationController.view.layer addAnimation:transition
                                                forKey:kCATransition];
    [self.navigationController pushViewController:viewController animated:NO];

但是当视图控制器弹出时，它会显示一个白色背景。我如何删除它

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我现在不能使用presentmodelviewcontroller，因为有一些问题

我不是告诉您这样做的，但您也可以尝试这种方法

view2 *vw2=[[view2 alloc]initWithNibName:@"view2" bundle:nil];
[UIView beginAnimations:@"View Flip" context:nil];
[UIView setAnimationDuration:0.80];
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];

[UIView setAnimationTransition:UIViewAnimationTransitionFlipFromRight 
                       forView:self.navigationController.view cache:NO];
[self.navigationController pushViewController:vw2 animated:NO];

//    [self.navigationController pushViewController:aboutShowViewController animated:YES];
[UIView commitAnimations];

或

这可能对你有点帮助

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我正在学习。，，。

您是否将主

窗口设置为白色背景？我的窗口的背景色为黑色您无法使用
UIViewAnimationTransition
enum执行“从顶部移入”转换。
CATransition *transition = [CATransition animation];
transition.duration = 1.0f;
transition.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
transition.type = kCATransitionFade;

[self.navigationController.view.layer addAnimation:transition forKey:nil];
[self.navigationController pushViewController:vw2 animated:NO];