[ios] 首页隐藏navigation bar

最新推荐文章于 2023-06-15 14:21:21 发布

原创最新推荐文章于 2023-06-15 14:21:21 发布 · 176 阅读

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#swift #ios #navigation bar

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本文介绍了一种在Swift中仅针对首个ViewController隐藏导航栏的方法。通过覆盖viewWillAppear和viewWillDisappear方法，可以实现在进入第一个页面时隐藏导航栏，并在切换到其他页面时重新显示导航栏的功能。这种方法适用于需要个性化导航体验的应用。

How to hide a navigation bar from first ViewController in Swift?

refer to :

http://stackoverflow.com/questions/29209453/how-to-hide-a-navigation-bar-from-first-viewcontroller-in-swift

override func viewWillAppear(_ animated: Bool) {
    super.viewWillAappear(animated)
    // Hide the navigation bar on the this view controller
    self.navigationController?.setNavigationBarHidden(true, animated: true)
}

override func viewWillDisappear(_ animated: Bool) {
    super.viewWillDisappear(animated)
    // Show the navigation bar on other view controllers
    self.navigationController?.setNavigationBarHidden(false, animated: true)
}

原理：因为setNavigationBarHidden设置是全局的，所有页面都会响应。所以通过页面出现时消失，到其他页时显示来实现。

object-c method:

-(void)viewWillAppear:(BOOL)animated{
    [super viewWillAppear:animated];
    self.navigationController.navigationBarHidden = YES;
}

-(void)viewWillDisappear:(BOOL)animated{
    [super viewWillDisappear:animated];
    self.navigationController.navigationBarHidden = NO;
}