使 SwiftUI 导航栏透明 [英] Make SwiftUI navigation bar transparent

问题描述

我正在寻找一种使 NavigationBar 透明的方法.我的 NavigationView 位于 ContentView 的根视图中，其中包含一个 TabView.

I'm searching for a way to make the NavigationBar transparent. My NavigationView is in the root view in ContentView which contains a TabView.

import SwiftUI

struct ContentView: View {
var body: some View {
    TabView {
       HomeView().tabItem {
            Image(systemName: "house.fill")
            Text("Home")
        }.tag(1)
        NavigationView {
        SearchView()
            }

        .tabItem {
            Image(systemName: "magnifyingglass")
            Text("Search")
        }.tag(2)
}

即使在根视图中添加以下修饰符后，导航视图栏也会显示.

The NavigationView Bar displays even after adding the following modifier in the root view.

init() { 
UINavigationBar.appearance().backgroundColor = .clear
UINavigationBar.appearance().isHidden = false

}

下面是我试图隐藏导航栏背景的子视图.

Below is the child view in which I'm trying to hide the navigationbar background.

import SwiftUI

struct FacilityView: View {


var perks = "Badge_NoPerks"
var image = "Image_Course6"
var courseName = "Course"

var body: some View {
    VStack {
        HStack {
            Image(image)
                .resizable()
                .aspectRatio(contentMode: .fill)
                .frame(width: UIScreen.main.bounds.width, height: 260)
        }
        VStack(alignment: .leading) {
            HStack {
                Image(perks)
            }
            HStack {
                Text(courseName)
                Spacer()
            }
        }
        .padding(.horizontal)
        Spacer()
    }.padding(.horizontal)
       .edgesIgnoringSafeArea(.top)
      .navigationBarTitle("Facility Details")


}

}

推荐答案

尝试将这些添加到您的 init() 修饰符中:

Try adding these to your init() modifiers:

UINavigationBar.appearance().barTintColor = .clear
UINavigationBar.appearance().setBackgroundImage(UIImage(), for: .default)

它在 Xcode 11.2.1、iOS 13.2 中对我有用

It worked for me in Xcode 11.2.1, iOS 13.2

这篇关于使 SwiftUI 导航栏透明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！