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I want to get notification like UIApplication.didBecomeActiveNotification and UIApplication.willResignActiveNotification when app switches in iPad Stage Controller Mode, but UIApplication.didBecomeActiveNotification, UIApplication.willResignActiveNotification just dont work, is there any method to get this notification
Monzy
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I want to use a Map to show current location and heading, but the map first show, it just wont work. And when I switch off and switch on again, it works. codes below:
BackgroundMapView.swift
import SwiftUI
import MapKit
struct BackgroundMapView: View {
var scope: Namespace.ID?
private var cameraPosition: MapCameraPosition = .userLocation(
followsHeading: true,
fallback: .automatic
)
private var locations: [Location]
init(_ scope: Namespace.ID? = nil, locations: [Location]) {
self.scope = scope
self.locations = locations
}
var body: some View {
Map(
initialPosition: cameraPosition,
scope: scope
) {
MapPolyline(coordinates: locations.map({ $0.coordinate.toGCJ02 }))
.stroke(
.red,
lineWidth: 3
)
}
.mapControlVisibility(.hidden)
}
}
#Preview {
MainView()
}
HomeVIew.swift
import SwiftUI
struct HomeView: View {
@StateObject private var locationManager = LocationManager()
@State private var isMapEnabled = UserDefaults.isHomeMapEnabled {
didSet {
UserDefaults.isHomeMapEnabled = isMapEnabled
}
}
@Namespace private var mapScope
var body: some View {
if isMapEnabled {
BackgroundMapView(mapScope, locations: locationManager.locations)
.mapScope(mapScope)
}
}
}