Question

我希望在cloudkit中更新用户的位置，但我的代码每次都会保存一条新记录。现有记录如何被新的记录修改或替换？

func locationManager(manager: CLLocationManager, didUpdateLocations locations: [CLLocation])
    {
        let location = locations.last
        let center = CLLocationCoordinate2D(latitude: location!.coordinate.latitude, longitude: location!.coordinate.longitude)
        let region = MKCoordinateRegion(center: center, span: MKCoordinateSpan(latitudeDelta: 0.01, longitudeDelta: 0.01))
        self.mapView.setRegion(region, animated: true)
        self.locationManager.stopUpdatingLocation()
        locationRecord.setObject(location, forKey: "location")
        let publicData = CKContainer.defaultContainer().publicCloudDatabase
        publicData.saveRecord(locationRecord) { record, error in
        }
            if error == nil
            {
                print("Location saved")
                self.loc1 = location!
            }
    }

Answer 1

要修改记录，您需要提取您的原始记录 - 更新详细信息，然后保存记录。

我会通过缓存对原始recordID的引用来实现此目的，例如

var locationRecordforUser = (whatever your CKrecord was when you created it)

然后在上面的位置方法中，只需抓住它，进行更改并执行保存

 record.setValue(locationbits, forKey: locationField)
            self. publicData.saveRecord(record, completionHandler: { (savedRecord, error) in
              dispatch_async(dispatch_get_main_queue()) {
                  completion(savedRecord, error)
               }
           })

试图在swift中修改ckrecord

1 个答案: