Widget element disappears in Widget Gallery - Swift - ios

Question

I have a weird issue I'm not sure how to resolve. I have a weather app that displays Celsius and Fahrenheit at the same time, as well as an SF symbol for the weather condition.
Everything in the widget works perfectly on it's own. However, in the widget gallery, the SF symbol will disappear from the widget after about half a second and I have no idea why.
Here's all the code from the widget. It's my first attempt at one, so it's not very clean:
import WidgetKit
import SwiftUI
let otherUserDefaults = UserDefaults(suiteName: "group.DualTemp")
let temperatureCelsius = otherUserDefaults?.value(forKey: "CTempWidget") ?? 0
let temperatureFahrenheit = otherUserDefaults?.value(forKey: "FTempWidget")
let name = otherUserDefaults?.value(forKey: "SearchedCityWidget")
let weatherID = otherUserDefaults?.string(forKey: "WidgetIcon")
let weather = UIImage(systemName: weatherID!)
struct Provider: TimelineProvider {
func placeholder(in context: Context) -> SimpleEntry {
SimpleEntry(date: Date(), name: "", temperatureCelsius: "0°C", temperatureFahrenheit: "0°F", weatherName: "Cloud", weatherIcon: weather!)
}
func getSnapshot(in context: Context, completion: #escaping (SimpleEntry) -> ()) {
let entry = SimpleEntry(date: Date(), name: name as! String , temperatureCelsius: temperatureCelsius as! String, temperatureFahrenheit: temperatureFahrenheit as! String, weatherName: "sun", weatherIcon: weather!)
completion(entry)
}
func getTimeline(in context: Context, completion: #escaping (Timeline<Entry>) -> ()) {
var entries: [SimpleEntry] = []
let userDefaults = UserDefaults(suiteName: "group.DualTemp")
let temperatureCelsius = userDefaults?.value(forKey: "CTempWidget") ?? 0
let temperatureFahrenheit = userDefaults?.value(forKey: "FTempWidget")
let name = userDefaults?.value(forKey: "SearchedCityWidget")
let weatherName = userDefaults?.string(forKey: "WidgetIcon")
let weatherImage = UIImage(systemName: weatherName!)
//MARK: - refresh info
let totalCountdown = 30
// Generate a timeline consisting of five entries an hour apart, starting from the current date.
let currentDate = Date()
for offset in 0 ..< totalCountdown {
let entryDate = Calendar.current.date(byAdding: .minute, value: offset, to: currentDate)!
let entry = SimpleEntry(date: entryDate, name: name as? String ?? "No location", temperatureCelsius: temperatureCelsius as? String ?? "0°C", temperatureFahrenheit: temperatureFahrenheit as? String ?? "0°F", weatherName: weatherName!,
weatherIcon: weatherImage!)
entries.append(entry)
}
let timeline = Timeline(entries: entries, policy: .atEnd)
completion(timeline)
}
}
struct SimpleEntry: TimelineEntry {
let date: Date
let name: String
let temperatureCelsius: String
let temperatureFahrenheit: String
let weatherName: String
let weatherIcon: UIImage
}
struct DualTempWidgetEntryView : View {
var entry: Provider.Entry
var body: some View {
ZStack{
Color("WidgetBackground")
VStack(spacing: 0.5) {
if #available(iOSApplicationExtension 16.0, *) {
Text(entry.name)
.padding(6)
.bold()
.font(.system(size: 27))
.minimumScaleFactor(0.01)
.lineLimit(1)
} else {
Text(entry.name)
.padding(6)
.font(.system(size: 29))
.minimumScaleFactor(0.01)
.lineLimit(1)
// Fallback on earlier versions
}
Image(systemName: entry.weatherName)
.resizable()
.symbolRenderingMode(.palette)
.scaledToFit()
.frame(width: 70, height: 70)
HStack{
Text(entry.temperatureCelsius)
.font(.system(size: 22))
Text("|")
Text(entry.temperatureFahrenheit)
.font(.system(size: 22))
}
}
}
}
}
struct DualTempWidget: Widget {
let kind: String = "DualTempWidget"
var body: some WidgetConfiguration {
StaticConfiguration(kind: kind, provider: Provider()) { entry in
DualTempWidgetEntryView(entry: entry)
}
.configurationDisplayName("Dual Temp")
.description("See the current temperature, in celsius and fahrenheit, and weather conditions for your location.")
.supportedFamilies([.systemSmall])
}
}
struct DualTempWidget_Previews: PreviewProvider {
static var previews: some View {
DualTempWidgetEntryView(entry: SimpleEntry(date: Date(), name: name as! String , temperatureCelsius: temperatureCelsius as! String, temperatureFahrenheit: temperatureFahrenheit as! String, weatherName: weatherID!, weatherIcon: weather!))
.previewContext(WidgetPreviewContext(family: .systemSmall))
}
}
Everything looks as it should be as everything in the widget updates correctly when you search for a new place in the app itself. Weird.