我为test设置了navigationBarItem按钮，以将FavoritesView显示为模式表。但是，此按钮和工作表中的SettingsView按钮都仅注册并响应某些轻击。我看不到按钮何时响应的任何模式，但有时可能需要4或5次点击才能使应用程序响应！有什么办法可以解决此问题？
Done：
FavoritesView import SwiftUI
enum ActiveSheet {
case details, settings
}
struct FavoritesView: View {
let speakers: [Speaker] = Bundle.main.decode("SpeakerTestData.json")
@State private var selectedModel: Speaker?
@State private var showingSheet = false
@State private var activeSheet: ActiveSheet = .settings
@EnvironmentObject var favorites: Favorites
@EnvironmentObject var settings: UserSettings
var filteredFavorites: [Speaker] {
let allSpeakers = speakers
var filteredItems: [Speaker] = []
for entry in allSpeakers {
if favorites.contains(entry) {
filteredItems.append(entry)
}
}
let sorted = filteredItems.sorted {
$0.model.localizedStandardCompare($1.model) == .orderedAscending
}
return sorted
}
var body: some View {
NavigationView {
List {
if filteredFavorites.count == 0 {
Text("Items you favourite will appear here.")
.foregroundColor(.secondary).padding(5)
} else {
Section(header: Text("Speakers")) {
ForEach(filteredFavorites) { speaker in
HStack {
Button(action: {
self.activeSheet = .details
self.selectedModel = speaker
self.showingSheet = true
}) {
SpeakerModelRow(speaker: speaker).contentShape(Rectangle())
}
.buttonStyle(PlainButtonStyle())
Spacer()
Button(action: {
if self.favorites.contains(speaker) {
self.favorites.remove(speaker)
} else {
self.favorites.add(speaker)
}
}, label: {
if self.favorites.contains(speaker) {
Image(systemName: "star.fill")
.foregroundColor(.blue)
.font(Font.title.weight(.ultraLight))
} else {
Image(systemName: "star")
.foregroundColor(.gray)
.font(Font.title.weight(.ultraLight))
}
}
).padding(5)
}
}
}
}
}
.navigationBarTitle("Favourites")
.navigationBarItems(trailing:
Button(action: {
self.activeSheet = .settings
self.showingSheet = true
}){
Image(systemName: "gear").font(Font.title.weight(.ultraLight)).padding(.trailing, 5).foregroundColor(.primary)
})
.sheet(isPresented: self.$showingSheet) {
if self.activeSheet == .details {
SpeakerDetailView(speaker: self.selectedModel!, showSheet: self.$showingSheet).environmentObject(self.favorites).environmentObject(self.settings)
} else {
SettingsView(showSheet: self.$showingSheet).environmentObject(self.settings)
}
}
}
}
}
列为表格：
SettingsView答案 0 :(得分：1)
这是一个已知问题，请尝试使用内部按钮内容填充（默认值或更多），例如
.navigationBarItems(leading: Button(action: {
self.showSheet = false
}) { Text("Done").padding() }