iOS 14 Widgets + Realm + SwiftUI 2.0? - swiftui

Question

I use Realm + SwiftUI 2.0, iOS 14. I successfully linked (read/write) Realm to Swift 2.0 iOS app.
final class DataEntryStore: ObservableObject {
private var entryCancellable: AnyCancellable?
private(set) var entryDB = DataObservable<Entry>()
// could store related references to other related DataObservables
#Published private(set) var entries: [Entry] = []
// MARK: - init
init() {
entryDB = DataObservable<Entry>()
entryCancellable = entryDB.$items.assign(to: \.entries, on: self)
}
}
class RealmEntry: Object, UUIDIdentifiable {
#objc dynamic var id: String = UUID().uuidString
#objc dynamic var entryType = ""
#objc dynamic var entryDate = Date()
#objc dynamic var note: String?
#objc dynamic var trainingType: String?
#objc dynamic var trainingTime = 0
override static func primaryKey() -> String? {
return "id"
}
}
// MARK: - Abstracted Data Struct which is what is presented with the UI
// UI Model
struct Entry: Hashable, RealmConvertible {
typealias RealmType = RealmEntry
// MARK: - Properties
var id: String
var entryType: DataEntryType
var entryDate: Date
var note: String?
var trainingType: TrainingType?
var trainingTime: Int
func toRealmObject() -> RealmEntry {
let realmObj = RealmEntry()
realmObj.id = id
realmObj.entryType = entryType.rawValue
realmObj.entryDate = entryDate
realmObj.note = note
if let trainingTypeValue = trainingType?.rawValue {
realmObj.trainingType = trainingTypeValue
}
realmObj.trainingTime = trainingTime
return realmObj
}
static func fromRealmObject(_ obj: RealmEntry) -> Entry {
Entry(obj)
}
init() {
self.id = UUID().uuidString
self.entryType = .note
self.entryDate = Date()
self.trainingTime = 0
}
init(_ obj: RealmEntry) {
self.id = obj.id
self.entryType = DataEntryType(fromRawValue: obj.entryType)
self.entryDate = obj.entryDate
self.note = obj.note
if let trainingType = obj.trainingType {
self.trainingType = TrainingType(fromRawValue: trainingType)
}
self.trainingTime = obj.trainingTime
}
}
protocol StringIdentifiable {
var id: String { get }
}
protocol UUIDIdentifiable: Identifiable { var id: String { get } }
//protocol Initializable { init() }
// MARK: - Map Between the Two
protocol RealmConvertible where Self: Equatable & UUIDIdentifiable {
associatedtype RealmType: Object & UUIDIdentifiable
func toRealmObject() -> RealmType
init(_ dest: RealmType)
}
// Dynamic Realm Binding for live data editing
extension RealmConvertible {
func realmBinding() -> Binding<Self> {
let h = RealmHelper()
return Binding<Self>(get: {
if let r = h.get(self.toRealmObject()) {
// get the latest realm version for most uptodate data and map back to abstracted structs on init
return Self(r)
} else {
// otherwise return self as it's the most uptodate version of the data struct
return self
}
}, set: h.updateConvertible)
}
}
However, I am having an issue when tried to link (read) it to Widget Extension.
#main
struct MyWidget: Widget {
let kind = "MyWidget"
var body: some WidgetConfiguration { IntentConfiguration(kind: kind, intent: ConfigurationIntent.self, provider: Provider()) { entry in
WidgetView()
}
.supportedFamilies([.systemSmall, .systemMedium])
.configurationDisplayName("My Widget")
.description("This is widget.")
}
}
struct WidgetView: View {
#EnvironmentObject var data: DataEntryStore
var body: some View {
Text(data.getRealmData)
ViewWithRealmDataFromMainApp()
}
}
I have tried to follow these instructions by using "App Groups" and Shared Objects to Main iOS App and to Widget Extension, but it didn't work.
More than that, if I link it to Realm, I can't even show static data on the widget. It shows blurry rectangles.
How to show data from the Realm on the iOS 14 widget?
https://i.stack.imgur.com/yzUG1.jpg
https://i.stack.imgur.com/nKy6i.jpg