First Time: I detect beacons, Alert is displayed, to Show Artwork. But when I detect the beacons a second time, Alert not showing and the display of the screen is white
I am new in swiftui, Please forgive me if I make a few mistakes My English isn’t so great.
**Thanks! Any help would be deeply appreciated! **
When you post code, please post code, not a screenshot. It is impossible to copy the code for testing. And we miss some code.
So please, resend with the full code.
shwoAlert is never set to false. Is it intentional ?
Note that in Swift, this
if showDetail == false {
would better be written
if !showDetail {
@Claude31 this full code
import CoreLocation
import SwiftUI
struct ContentView: View {
@ObservedObject var detector = BeaconDetector()
@EnvironmentObject var popupManager: PopupManager
@EnvironmentObject var authViewModel: AuthViewModel
@State var isNavigationBarHidden: Bool = true
@State var isShowAlert = true
@State var showDetail = false
var artworkinfo: Artworkinfo
var exhibition: Exhibition
// var artwork: Artwork
@StateObject var artwork = ArtworkViewModel()
@State private var showSecondView = false
var body: some View {
VStack {
Group {
// no logged in
if authViewModel.userSession == nil {
LoginView()
} else {
// logged in user
if detector.lastDistance == .immediate {
if showDetail == false {
Text("")
.alert(isPresented: $isShowAlert) {
Alert(
title: Text("Hi! Art Lovers"),
message: Text("We want to help you find your nearest Artwork 🖼️"),
dismissButton:
.default(Text("OK"),
action: {
self.showDetail = true
}
)
)
}
} else {
let getArtwork = artwork.artworks.filter { $0.id == "1" }.first
if getArtwork?.uuidbeacon == BeaconDetector.getBeaconID() {
NavigationLink(destination: ArtworkInfoBeacon(artwork: getArtwork!), isActive: self.$showDetail) {
ArtworkInfoBeacon(artwork: getArtwork!)
}
}
}
} else {
mainInterfaceView
}
}
} // Group
} // vStack
} // some view
// func alertDetector() -> EmptyView {
// showDetail = false
// return EmptyView()
// }
}
struct ContentView_Previews: PreviewProvider {
static var previews: some View {
ContentView(artworkinfo: Artworkinfo(
id: 0,
atwName: "Anthropocene",
atwArtist: "Sirawich",
ateCate: "Painting",
atwDesc: "It is a long established fact that a reader will be distracted by the readable content of a page when looking at its layout. The point of using Lorem Ipsum is that it has a more-or-less normal",
atwSound: "mp4",
atwImg: "AnthropoceneCover",
idExhbt: 0), exhibition: Exhibition(id: "", exhbtstate: "", exhbtname: "", exhbtstr: "", exhbtend: "", exhbtdesc: "", timestr: "", timeend: "", exhbtorgnz: "", loctname: "", loctdetail: "", ticket: "", imgcover: ""), artwork: ArtworkViewModel())
}
}
extension ContentView {
var mainInterfaceView: some View {
VStack {
MainTabView()
}
}
}