如何同时滑入/滑出状态栏和导航栏?

hidden 设置正确。所以这对我有用:

隐藏动画作品/看起来不错耶!!。

显示动画是可以的,(我希望我可以使状态栏幻灯片与导航栏,但至少我们看不到差距了。 :D

- (void)toggleFullscreen {

    UINavigationBar *navBar = self.navigationController.navigationBar;
    CGRect statusBarFrame = [[UIApplication sharedApplication] statusBarFrame];
    float animationDuration;
    if(statusBarFrame.size.height > 20) { // in-call
        animationDuration = 0.5;
    } else { // normal status bar 
        animationDuration = 0.6;
    }

    _fullscreen = !_fullscreen;
    if (_fullscreen) { 
        // Change to fullscreen mode
        // Hide status bar and navigation bar
        [[UIApplication sharedApplication] setStatusBarHidden:YES
                                                withAnimation:UIStatusBarAnimationSlide];
        [UIView animateWithDuration:animationDuration animations:^{
            navBar.frame = CGRectMake(navBar.frame.origin.x,
                                  -navBar.frame.size.height,
                                  navBar.frame.size.width,
                                  navBar.frame.size.height);
        } completion:^(BOOL finished) {
            [self.navigationController setNavigationBarHidden:YES animated:NO];
        }];

    } else {
        // Change to regular mode
        // Show status bar and navigation bar
        [[UIApplication sharedApplication] setStatusBarHidden:NO
                                                withAnimation:UIStatusBarAnimationSlide];
        [UIView animateWithDuration:animationDuration animations:^{
             navBar.frame = CGRectMake(navBar.frame.origin.x,
                                       statusBarFrame.size.height,
                                       navBar.frame.size.width,
                                       navBar.frame.size.height);
        } completion:^(BOOL finished) {
            [self.navigationController setNavigationBarHidden:NO animated:NO];
        }];

    }

}

这就是我如何解决我的应用程序这个问题。

    CGRect statusBarFrame = [[UIApplication sharedApplication] statusBarFrame];

    // delta is the amount by which the nav bar will be moved
    delta = statusBarFrame.size.height + self.navigationController.navigationBar.frame.size.height;

    if(statusBarFrame.size.height>20) { // in-call
        animationDuration = 0.5;
    }
    else { // normal status bar 
        animationDuration = 0.6;
    }

    // hide status bar
    [[UIApplication sharedApplication] setStatusBarHidden:YES withAnimation:UIStatusBarAnimationSlide];

    // hide nav bar
    [UIView beginAnimations:nil context:nil];
    [UIView setAnimationDuration:animationDuration];

    self.navigationController.navigationBar.frame = CGRectOffset(self.navigationController.navigationBar.frame, 0.0, -delta);

    [UIView commitAnimations];

fix it .

当然,一个解决方法是使用alpha褪色,正如以法莲所建议的那样。如果您坚持使用滑动行为,我发现最好只设置导航栏的动画并隐藏/显示状态栏,而不使用任何动画。这看起来比滑动状态栏要好得多,因为在动画期间状态栏之间的间隙非常明显。

注意,navigationBar是一个outlet,statusBarHeight是一个实例变量float。

- (IBAction)toggleControls:(id)sender {
    BOOL isHidden = ! [UIApplication sharedApplication].statusBarHidden;
    if (isHidden)
        statusBarHeight = [UIApplication sharedApplication].statusBarFrame.size.height;
    [UIView animateWithDuration:[UIApplication sharedApplication].statusBarOrientationAnimationDuration animations:^{
        self.navigationBar.frame = CGRectMake(self.navigationBar.frame.origin.x,
                                              isHidden ? -self.navigationBar.frame.size.height : statusBarHeight,
                                              self.navigationBar.frame.size.width,
                                              self.navigationBar.frame.size.height);
    }];
    [[UIApplication sharedApplication] setStatusBarHidden:isHidden withAnimation:UIStatusBarAnimationSlide];
}

nacho4d的回答几乎是我想要的,但是他在导航栏出现之前改变了导航栏的框架。所以我们看不到过渡动画。看起来导航栏突然出现了。更重要的是,在显示时,statusBarFrame.size.height等于0

[[UIApplication sharedApplication] setStatusBarHidden:NO
                                            withAnimation:UIStatusBarAnimationSlide];
    [UIView animateWithDuration:animationDuration animations:^{
         navBar.frame = CGRectMake(navBar.frame.origin.x,
                                   statusBarFrame.size.height,
                                   navBar.frame.size.width,
                                   navBar.frame.size.height);
    } completion:^(BOOL finished) {
        [self.navigationController setNavigationBarHidden:NO animated:NO];
    }];

在显示时,我们希望可以使状态栏与导航栏一起滑动。 这是我的答案

        UINavigationBar *navBar = self.navigationController.navigationBar;
        [[UIApplication sharedApplication] setStatusBarHidden:hidden withAnimation:UIStatusBarAnimationSlide];

        [UIView animateWithDuration:0.35 delay:0 options:UIViewAnimationOptionCurveEaseOut animations:^{
            // make navigationBar visual
            if (!hidden)
            {
                [self.navigationController setNavigationBarHidden:hidden animated:NO];
            }

            navBar.frame = CGRectMake(navBar.frame.origin.x,
                                      hidden ? -navBar.frame.size.height : 20,
                                      navBar.frame.size.width,
                                      navBar.frame.size.height);
        } completion:^(BOOL finished) {
            if (hidden)
            {
                [self.navigationController setNavigationBarHidden:hidden animated:NO];
            }
        }];

1. 隐藏 等于 不 . 我们应该先改变导航栏的框架,然后隐藏导航栏。
2. 显示时,以及 等于 对
3. 我们选择 ,使它看起来更好。

可以使用实例变量执行以下操作:

self.navigationController setNavigationBarHidden:hide animated:animated];
_shouldHideStatusBar = hide;

并实现以下功能:

- (BOOL)prefersStatusBarHidden{
    return _shouldHideStatusBar;
}

这个 设置导航栏idden:animated 首选状态栏隐藏 功能。如果没有,可以使用以下UIViewController方法调用它:

[self setNeedsStatusBarAppearanceUpdate];

当然,您可以使用以下选项选择状态栏隐藏动画样式:

- (UIStatusBarAnimation) preferredStatusBarUpdateAnimation {
    return UIStatusBarAnimationSlide;
}

这不是一个很好的答案,但它的工作。所以我做的是:

// This method gets called by whatever action you want

- (void) toggleShowStatusNavBars:(id)sender {

    // Assuming you have a ivar called barsHidden

    [UIView beginAnimations:nil context:nil];
    [UIView setAnimationDuration:0.4]; // This is IMPORTANT, 0.4s

    self.navigationController.navigationBar.alpha = (barsHidden?1.0:0.0);  

    barsHidden = !barsHidden; 

    [UIView setAnimationDelegate:self];
    [UIView setAnimationWillStartSelector:@selector(setStatusBarHidden)];

    [UIView commitAnimations];
}

- (void) setStatusBarHidden {
    [[UIApplication sharedApplication] setStatusBarHidden:barsHidden animated:YES];
}

这将基本上同步动画的开始(因为您正在调用 setStatusBarHidden 在导航栏动画的开头。关键是状态栏动画似乎需要0.4秒。

这对我有效,但如果你找到一个更好的方法,请张贴在这里。