I used to be taking a look at a tutorial on the MVVM structure sample.
It says that views ought to by no means have direct entry to the mannequin. So all views are all the time hidden behind a view mannequin.
For instance:
Mannequin
struct Location: Codable, Equatable {
//MARK: Properties
let id: String
let identify: String
let nation: String
//
let latitude: Double
let longitude: Double
init(id: String, identify: String, nation: String, latitude: Double, longitude: Double) {
self.id = id
self.identify = identify
self.nation = nation
self.latitude = latitude
self.longitude = longitude
}
}
View Mannequin that disguise the mannequin layer
closing class LocationCellViewModel: Identifiable {
//MARK: Properties
non-public let location: Location
//
var locationViewModel: LocationViewModel {
.init(location: location)
}
// MARK: - Initialization
init(location: Location) {
self.location = location
}
// MARK: - Public API
var locationName: String {
location.identify
}
var locationCountry: String {
location.nation
}
....
}
View Mannequin that shall be within the view as property
closing class LocationsViewModel {
//MARK: Properties
non-public(set) var locationCellViewModels: [LocationCellViewModel] = []
....
}
Why would possibly it’s higher to have a LocationCellViewModel array as an alternative of a Location array within the LocationsViewModel class? Is there any benefit to doing so?
