iOS11自定义导航栏高度 [英] iOS11 customize navigation bar height

问题描述

首先，感谢您来到这里并帮助解决我的问题。谢谢!!!

First of all, thank you for coming here and help solving my problem. Thank you!!!

在iOS11 beta6中， sizeThatFits：似乎无法在UINavigationBar上运行。我注意到通过显示我的应用程序改变了UINavigationBar结构。

In iOS11 beta6, sizeThatFits: seems to not work on UINavigationBar. I notice that UINavigationBar structure has changed by Reveal my app.

我已经尽力改变自定义导航栏的高度。但似乎总是 44 ，它在iOS11之前有效。

I have tried my best to change custom navigation bar's height. But it seems always to be 44, and it works before iOS11.

- (CGSize)sizeThatFits:(CGSize)size {
    CGSize newSize = CGSizeMake(self.frame.size.width, 64);
    return newSize;
}

奇怪的是，我只是在中记录了它的框架didMoveToSuperview 方法，它的高度是64，但我真的看到在Reveal和app中是44。

Oddly, I just log its frame in didMoveToSuperview method, its height is 64, but I really see that is 44 in Reveal and app.

我对此一无所知...请帮帮我..谢谢你。

I have no idea about this... Help me please.. Thank you.

我发现关于我的自定义导航栏LayoutConstraints登录控制台如下：

I found that about my custom navigation bar LayoutConstraints log in console like this :

"<NSAutoresizingMaskLayoutConstraint:0x604000495ae0 FDCustomNavigationBar:0x7fe2f01399d0.(null) == 42>",
"<NSAutoresizingMaskLayoutConstraint:0x604000495b30 FDCustomNavigationBar:0x7fe2f01399d0.height == 44>"`

bug我甚至没有使用自动布局我的导航栏。这有什么问题？

bug I even no use auto layout in my navigation bar. What's wrong with it?

我在导航栏的<$ c设置了我的自定义导航栏的子视图框架$ c> -
layoutSubviews 方法。

- (void)layoutSubviews {
    [super layoutSubviews];

    self.frame = CGRectMake(0, 0, CGRectGetWidth(self.frame), 64);

    for (UIView *view in self.subviews) {

        if([NSStringFromClass([view class]) containsString:@"Background"]) {
            view.frame = self.bounds;
        } else if ([NSStringFromClass([view class]) containsString:@"ContentView"]) {
            CGRect frame = view.frame;
            frame.origin.y = 20;
            frame.size.height = self.bounds.size.height - frame.origin.y;
            view.frame = frame;
        }
    }
}

但导航栏将覆盖查看控制器的视图。我该如何解决这个问题？

but the navigation bar will cover view controller's view. How can I fix that?

推荐答案

由于iOS 11 UINavigationBar完全支持自动布局（这就是你看到它的原因约束）。我已经向Apple打开了雷达，因为我认为为titleView设置高度约束会相应地调整导航栏高度。然而，这就是Apple回复的内容：

Since iOS 11 UINavigationBar fully supports Auto Layout (this is the reason why you're seeing its constraints). I've opened a radar to Apple because I thought that setting a height constraint to the titleView would have adjusted the navigation bar height accordingly. However this is what Apple replied:

完全支持自动布局并不意味着您的视图可以影响导航布局的其他方面bar - 特别是，导航栏强制执行自己的高度，并且不允许标题视图或其他自定义视图超出导航栏的高度。我们将继续处理这个问题，并会再次与您联系。

Full support for auto layout does not imply that your view can influence other aspects of the layout of the navigation bar – in particular, the navigation bar enforces its own height and does not allow the title view or other custom views to exceed the height of the navigation bar. We are continuing to work on this issue, and will follow up with you again.

截至今天，雷达仍处于打开状态。

As of today the radar is still open.

这篇关于iOS11自定义导航栏高度的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！