ios - 点击手势隐藏导航栏、标签栏和状态栏

Question

我正在尝试在我的 WebView 上实现点击手势来隐藏/显示导航栏、标签栏和状态栏。我有导航栏的隐藏/显示工作正常，我可以隐藏状态栏但不能让它显示出来。选项卡栏项目被隐藏，但栏仍然存在。有人可以帮忙吗？

- (void)toggleBars:(UITapGestureRecognizer *)gesture
{   
    [[UIApplication sharedApplication] setStatusBarHidden:YES withAnimation:UIStatusBarAnimationSlide];
    BOOL statusBarHidden = YES;

    BOOL barsHidden = self.navigationController.navigationBar.hidden;
    [self.navigationController setNavigationBarHidden:!barsHidden animated:YES];

    BOOL tabBarHidden = self.tabBarController.tabBar.hidden;
    [self.tabBarController.tabBar setHidden:!tabBarHidden];
}

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view from its nib.

    UIBarButtonItem *systemAction = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAction target:self action:@selector(showMenu)];
    self.navigationItem.rightBarButtonItem = systemAction;

    UITapGestureRecognizer *singleTap = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(toggleBars:)];
    [webView addGestureRecognizer:singleTap];
    singleTap.delegate = self;
}

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer
{
    return YES;
}

编辑:看起来标签栏被隐藏了，但我的 webview 只是没有填充空白区域。如何在标签栏隐藏时填充空间？

Answer 1

首先，您的状态栏永远不会取消隐藏，因为您从来没有告诉过它。如所写，您的代码只是告诉状态栏在每次执行时隐藏。

[[UIApplication sharedApplication] setStatusBarHidden:![[UIApplication sharedApplication] isStatusBarHidden] withAnimation:UIStatusBarAnimationSlide];

[self.navigationController setNavigationBarHidden:!self.navigationController.navigationBar.hidden animated:YES];

另外，我不确定为什么你的标签栏没有正确隐藏的细节，但我确实找到了以下类别，它声称能够使用选项动画隐藏标签栏。

https://github.com/idevsoftware/Cocoa-Touch-Additions/tree/master/UITabBarController_setHidden