过渡到 ViewController 离开前一个视图的导航栏

Question

我希望通过从 Whosebug 获得的这种转换以编程方式导航到 ViewController。

  CATransition* transition = [CATransition animation];
  transition.duration = .45;
  transition.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
  transition.type = kCATransitionFade;
  self.navigationController.view.layer addAnimation:transition forKey:kCATransition];

  UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
  AddDeviceViewController *vc = [storyboard instantiateViewControllerWithIdentifier:@"AddDeviceViewController"];
  self.navigationController pushViewController:vc animated:NO];

但是当它转换到视图时，上一个视图的导航栏仍然存在。如何让过渡视图的导航栏出现而不是之前的导航栏？

Answer 1

在您的 AddDeviceViewController 中实施 viewWillAppear 和 viewWillDisappear。在 viewWillAppear 中隐藏 navigation bar，在 viewWillDisappear 中显示 navigation bar。此机制仅隐藏 AddDeviceViewController 的导航栏。像，

 -(void)viewWillAppear:(BOOL)animated{

     self.navigationController.navigationBar.hidden = YES;
 }

 -(void)viewWillDisappear:(BOOL)animated{

       self.navigationController.navigationBar.hidden = NO;
 }

过渡到 ViewController 离开前一个视图的导航栏

Transitioning to a ViewController leaves the navigation bar of the previous view

ios

objective-c

uinavigationbar

pushviewcontroller

catransition