【发布时间】：2019-11-12 20:48:59
【问题描述】：
我正在做一个关于我的学校建筑和楼层的应用程序，并且我使用导航视图，但是，我不想查看披露指示器，所以我发现“hack”将导航链接宽度设置为 0 以及不透明度。当我还想使用最后一个 NavigationLink 执行此操作时，我的应用程序在初始化期间访问错误的 App Delegate 文件中崩溃。当我不在最后一项上使用 HStack 和这个“hack”时，它看起来像其他列表行，但不会执行任何操作。它的唯一工作方式是下一个视图位于导航链接内，这会导致主屏幕的最后一个列表行看起来不同。有任何想法吗？非常感谢你。
import SwiftUI
struct BuildingsView: View {
init() {
UITableView.appearance().separatorStyle = .none
}
var body: some View {
NavigationView {
List {
HStack{
BuildingCardView(titleString: "Námestie J. Herdu", subtitleString: "Námestie J. Herdu 2, Trnava", imageString: "namjherdu", infoString: "Rektorát, FMK, FF, FPV, internáty, jedáleň, kancelárie")
NavigationLink(destination: NamJHerduView()) {
EmptyView()}
.frame(width: 0)
.opacity(0)
}
HStack {
BuildingCardView(titleString: "Hajdóczyho", subtitleString: "Jána Hajdóczyho 1, Trnava", imageString: "hajdoczy", infoString: "Knižnica, učebne, kancelárie, Kino OKO")
NavigationLink(destination: HajdoczyhoView()) {
EmptyView()}
.frame(width: 0)
.opacity(0)
}
HStack {
BuildingCardView(titleString: "Bučianska", subtitleString: "Bučianska 4A, Trnava", imageString: "bucianska", infoString: "FSV, FMK, aula, kancelárie")
NavigationLink(destination: BucianskaView()) {
EmptyView()}
.frame(width: 0)
.opacity(0)
}
HStack {
BuildingCardView(titleString: "V Jame", subtitleString: "V Jame 3, Trnava", imageString: "vjame", infoString: "FMK, FSV, jedáleň")
NavigationLink(destination: VJameView()) {
EmptyView()}
.frame(width: 0)
.opacity(0)
}
HStack {
BuildingCardView(titleString: "Skladová", subtitleString: "Skladová 3, Trnava", imageString: "skladova", infoString: "FMK")
NavigationLink(destination: SkladovaView()) {
EmptyView()}
.frame(width: 0)
.opacity(0)
}
NavigationLink(destination: SpacinceView()) {
BuildingCardView(titleString: "Špačince", subtitleString: "Hlavná 6, Špačince", imageString: "spacince", infoString: "FPV, výskumné laboratóriá")}
}
.navigationBarTitle(
Text("Budovy UCM"), displayMode: .large).navigationBarHidden(false)
}
}
}
import SwiftUI
struct BuildingCardView: View {
let titleString: String?
let subtitleString: String?
let imageString: String?
let infoString: String?
init(titleString: String? = "null", subtitleString: String? = "null", imageString: String? = "default", infoString: String? = "null"){
self.titleString = titleString
self.subtitleString = subtitleString
self.imageString = imageString
self.infoString = infoString
}
var body: some View {
VStack {
Image(imageString!)
.resizable()
.frame(minWidth: 0, maxWidth: .infinity, minHeight: 0, maxHeight: 150, alignment: .topLeading)
HStack {
VStack(alignment: .leading) {
Text(titleString!)
.font(.title)
.fontWeight(.black)
.foregroundColor(.primary)
.lineLimit(1)
Text(subtitleString!)
.font(.headline)
.foregroundColor(.secondary)
.lineLimit(3)
Text(infoString!)
.font(.subheadline)
.foregroundColor(.secondary)
.lineLimit(3)
}
.layoutPriority(100)
Spacer()
}
.padding()
}
.cornerRadius(10)
.overlay(
RoundedRectangle(cornerRadius: 10)
.stroke(Color(.sRGB, red: 150/255, green: 150/255, blue: 150/255, opacity: 0.2), lineWidth: 1)
)
}
}
import SwiftUI
struct ContentView: View {
var body: some View {
TabView{
BuildingsView()
.tabItem {
Image(systemName: "house")
Text("Budovy")
}
Text("Vyhľadávanie TBD")
.tabItem {
Image(systemName: "magnifyingglass")
Text("Vyhľadávanie")
}
MapView()
.tabItem {
Image(systemName: "map")
Text("Mapa")
}
}
}
}
【问题讨论】：
-
不幸的是你有很多代码......但仍然不够。最简单的方法是给我们一个指向 github 的链接，我们可以在其中轻松下载您的问题......或者您以这种方式分解您的代码，只有一些编码行会重现错误。
标签： swift swiftui swiftui-list