Question

我有可编码数据，我试图根据从每个索引获得的值对数据进行排序。

数据：

[Film_Bee.TheatersView.Theaters(name: "American Cinematheque at the Aero 
Theatre", theatreId: "2417", location: Film_Bee.TheatersView.Location(address: 
Film_Bee.TheatersView.Address(street: "1328 Montana Ave.", state: "CA", city: 
"Santa Monica", postalCode: "90403", country: "USA"), geoCode: 
Film_Bee.TheatersView.Geo(latitude: "34.0319", longitude: "-118.4953"))), 
Film_Bee.TheatersView.Theaters(name: "AMC Santa Monica 7", theatreId: "9153", 
location: Film_Bee.TheatersView.Location(address: 
Film_Bee.TheatersView.Address(street: "1310 3rd St.", state: "CA", city: "Santa 
Monica", postalCode: "90401", country: "USA"), geoCode: 
Film_Bee.TheatersView.Geo(latitude: "34.0167", longitude: "-118.4977"))), 
Film_Bee.TheatersView.Theaters(name: "AMC Broadway 4", theatreId: "8241", 
location: Film_Bee.TheatersView.Location(address: 
Film_Bee.TheatersView.Address(street: "1441 Third Street Promenade", state: 
"CA", city: "Santa Monica", postalCode: "90401", country: "USA"), geoCode: 
Film_Bee.TheatersView.Geo(latitude: "34.0150", longitude: "-118.4948"))), 
Film_Bee.TheatersView.Theaters(name: "Laemmle Monica Film Center", theatreId: 
"7293", location: Film_Bee.TheatersView.Location(address: 
Film_Bee.TheatersView.Address(street: "1332 2nd St.", state: "CA", city: "Santa 
Monica", postalCode: "90401", country: "USA"), geoCode: 
Film_Bee.TheatersView.Geo(latitude: "34.0157", longitude: "-118.4980")))]

在这里，我已获取数据并找到了与当前位置的距离：

        let geo = theater.map { $0.location}.map { $0.geoCode }
        let lat = geo.latitude
        let long = geo.longitude
        let theaterGeo = CLLocationCoordinate2D(latitude: Double(lat)!, longitude: Double(long)!)
        let theaterLat = theaterGeo.latitude
        let theaterLong = theaterGeo.longitude
        let location = CLLocation(latitude: theaterLat, longitude: theaterLong)

        let distance = self.location.distance(from: location)

我现在正在尝试将距离和可编码数据从最低到最高排序。我知道如何使用sorted(by: { $0.value > $1.value })对索引中的可编码数据进行排序。如何按距离值对索引进行排序？

更新：如果我尝试下面的代码，则会收到错误Use of undeclared type Theaters

extension Array where Element == Theaters {

mutating func sort(by location: CLLocation) {
     return sort(by: { $0.distance(to: location) < $1.distance(to: location) })
}

func sorted(by location: CLLocation) -> [Theaters] {
    return sorted(by: { $0.distance(to: location) < $1.distance(to: location) })
}
}

根据值对可编码数据进行排序

0 个答案: