ios - 如何从 Parse 数组中获取 closeGeoPoint 位置？

Question

我正在尝试使用whereKey，nearGeoPoint。唯一的问题是我的位置位于一系列位置中。我如何从该数组中获取单个位置？下面是我的代码...

    func locationManager(manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
        postQuery.whereKey("locations", nearGeoPoint: PFGeoPoint(latitude: locations[0].coordinate.latitude, longitude: locations[0].coordinate.longitude), withinMiles: 30)
    }

Answer 1

来自 CLLocationManagerDelegate 的文档:

This array always contains at least one object representing the current location. If updates were deferred or if multiple locations arrived before they could be delivered, the array may contain additional entries. The objects in the array are organized in the order in which they occurred. Therefore, the most recent location update is at the end of the array.

如果您想将最新位置发送到 Parse，您应该使用 locations.last