透明的 iOS 导航栏 [英] Transparent iOS navigation bar

问题描述

我正在创建一个应用程序，我在互联网上浏览过，我想知道他们是如何制作像这样的透明 UINavigationBar 的:

I'm creating an app and i've browsed on the internet and i'm wondering how they make this transparent UINavigationBar like this:

我在我的 appdelegate 中添加了以下内容:

I've added following like in my appdelegate:

UINavigationBar.appearance().translucent = true

但这只是让它看起来像下面这样:

but this just makes it look like following:

如何让导航栏像第一张图片一样透明?

How can I make the navigation bar transparent like first image?

推荐答案

您可以为半透明应用如下导航栏图像.

You can apply Navigation Bar Image like below for Translucent.

目标-C:

[self.navigationController.navigationBar setBackgroundImage:[UIImage new]
                     forBarMetrics:UIBarMetricsDefault]; //UIImageNamed:@"transparent.png"
self.navigationController.navigationBar.shadowImage = [UIImage new];////UIImageNamed:@"transparent.png"
self.navigationController.navigationBar.translucent = YES;
self.navigationController.view.backgroundColor = [UIColor clearColor];

斯威夫特 3:

self.navigationController?.navigationBar.setBackgroundImage(UIImage(), for: .default) //UIImage.init(named: "transparent.png")
self.navigationController?.navigationBar.shadowImage = UIImage()
self.navigationController?.navigationBar.isTranslucent = true
self.navigationController?.view.backgroundColor = .clear
    

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