ios - 无法将 CLLocationDegrees 的值转换为预期参数 shopProperties

Question

我有一个如下所示的属性:

class shopProperties: NSObject {
    var Latitude: CLLocationDegrees?
}

当我执行这段代码时:

 databaseRef.observeSingleEvent(of: .value, with: { (snapshot) in
            for child in snapshot.children {
                let snap = child as! FIRDataSnapshot
                let dictionary = snap.value as! [String: AnyObject]
                let shopProper = shopProperties()

                var latitude = dictionary["Latitude"]
                var longtitude = dictionary["Longtitude"]

                shopProper.Latitude = latitude as! CLLocationDegrees
                print(shopProper.Latitude)
                self.shopProperty.append(shopProper.Latitude)
})

我在构建时的编译器错误中收到此错误:

无法将 CLLocationDegrees 的值转换为预期参数 shopProperties

我的问题是我如何附加它以便我能够在我的类里面访问它？

Answer 1

您的.shopProperty实例变量的类型为[shopProperties]，即shopProperties数组。因此，您需要将 shopProperties 类型对象附加到数组中。但您正在附加其他类型的对象。

将此 self.shopProperty.append(shopProper.Latitude) 更改为

self.shopProperty.append(shopProper)

注意:附注，类名以大写开头，属性名称以小写开头。