淡出UINavigationBarController.navigationBar？

Question

我想让navigationBar淡出我的状态栏并将animated:设置为YES不起作用，因为它只是动画navigationBar 。我尝试过以下方法：

[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.5];
self.navigationController.navigationBar.alpha = 0.0;
[UIView commitAnimations];
[[UIApplication sharedApplication] setStatusBarHidden:YES animated:YES];

但它不起作用。

Answer 1

这对你有用吗？

CATransition *_navigationAnimation = nil;
[CATransaction begin];
_navigationAnimation = [CATransition animation];
_navigationAnimation.type = kCATransitionFade;
_navigationAnimation.duration = 0.5;
[[self.navigationController.navigationBar layer] addAnimation:_navigationAnimation forKey:@"kNavigationBarAnimationKey"];
[CATransaction commit];