UIView transitionFromView:如何在过渡期间做黑色背景?

本文介绍了UIView transitionFromView:如何在过渡期间做黑色背景?的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我使用下一个代码.

[UIView transitionFromView:viewA toView:viewB duration:1.0 options: UIViewAnimationOptionTransitionFlipFromLeft
                        completion: ^(BOOL inFinished) {
                            viewB.hidden = NO;
                            viewA.hidden = YES;
                            //do any post animation actions here
                        }];

转换正常.我想在过渡期间设置黑色背景.我怎样才能做到这一点?请看照片:

Transition works OK. I want to set a black background during transition. How can I do this?Please, see the photo:

推荐答案

尝试为动画视图的父视图设置黑色背景颜色.

Try with setting the black background color for parent view of animated view.

viewB.superview.backgroundColor = [UIColor blackColor];

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