如果 Swift 中存在 NSUserDefault,则尝试更新 CLLocation
Trying to update CLLocation if NSUserDefault Exists in Swift
最初我试图将 CLLocation 保存为 NSUserDefault 值,然后再将其作为 CKRecord 存储在 CLoudkit 中,但出现错误:“defaults.setObject(locationRecord.recordID, forKey: "locationRecordID")”,原因是 "Attempt to set a non-property-list object as an NSUserDefaults/CFPreferences value for key locationRecordID"。所以现在我正在尝试将纬度和经度保存为默认值并替换 Cloudkit 中的旧位置。我目前在“publicDB.fetchRecordWithID((defaults.objectForKey("Location") 作为!CKRecordID),completionHandler:”,原因是“无法将‘__NSCFDictionary’类型的值 (0x1a1bec968) 转换为 'CKRecordID'。 “
func locationManager(manager: CLLocationManager, didUpdateLocations locations: [CLLocation])
{
let location = locations.last
self.loc1 = location!
let center = CLLocationCoordinate2D(latitude: location!.coordinate.latitude, longitude: location!.coordinate.longitude)
let region = MKCoordinateRegion(center: center, span: MKCoordinateSpan(latitudeDelta: 0.004, longitudeDelta: 0.004))
self.mapView.setRegion(region, animated: true)
self.locationManager.stopUpdatingLocation()
self.locationManager.startMonitoringSignificantLocationChanges()
self.getRecordToUpdate(locations)
let lat: CLLocationDegrees = center.latitude
self.lat1 = lat
let long: CLLocationDegrees = center.longitude
self.long1 = long
locationRecord.setObject(location, forKey: "location")
let publicData = CKContainer.defaultContainer().publicCloudDatabase
publicData.saveRecord(locationRecord) { record, error in
}
if error == nil
{
print("Location saved")
}
}
func getRecordToUpdate(locations:[CLLocation])
{
let defaults = NSUserDefaults.standardUserDefaults()
var locationRecord:CKRecord
if defaults.objectForKey("Location") == nil{
locationRecord = CKRecord(recordType: "location")
let locationDict = ["lat": lat1, "lng": long1]//
defaults.setObject(locationDict, forKey: "Location")//
self.updateLocationRecord(locationRecord, locations: locations)
print("new")
}else{
let publicDB = CKContainer.defaultContainer().publicCloudDatabase
publicDB.fetchRecordWithID((defaults.objectForKey("Location") as! CKRecordID),completionHandler: {
(record, error) in
if error == nil{
self.updateLocationRecord(record!, locations: locations)
print("fetched record")
}else{
print("Error fetching previous record")
}
})
}
}
func updateLocationRecord(locationRecord:CKRecord, locations:[CLLocation])
{
let location = locations.last
locationRecord.setObject(location, forKey: "location")
let publicData = CKContainer.defaultContainer().publicCloudDatabase
publicData.saveRecord(locationRecord) { record, error in
}
if error == nil
{
print("Location saved")
}
}
试试这个
您可以将 NSData 保存到 NSUserDefaults。所以你所需要的就是将你的 CLLocation 对象转换为 NSData 如下:
// saving your CLLocation object
let locationData = NSKeyedArchiver.archivedDataWithRootObject(your location here)
NSUserDefaults.standardUserDefaults().setObject(locationData, forKey: "locationData")
// loading it
if let loadedData = NSUserDefaults.standardUserDefaults().dataForKey("locationData") {
if let loadedLocation = NSKeyedUnarchiver.unarchiveObjectWithData(loadedData) as? CLLocation {
println(loadedLocation.coordinate.latitude)
println(loadedLocation.coordinate.longitude)
}
}
最初我试图将 CLLocation 保存为 NSUserDefault 值,然后再将其作为 CKRecord 存储在 CLoudkit 中,但出现错误:“defaults.setObject(locationRecord.recordID, forKey: "locationRecordID")”,原因是 "Attempt to set a non-property-list object as an NSUserDefaults/CFPreferences value for key locationRecordID"。所以现在我正在尝试将纬度和经度保存为默认值并替换 Cloudkit 中的旧位置。我目前在“publicDB.fetchRecordWithID((defaults.objectForKey("Location") 作为!CKRecordID),completionHandler:”,原因是“无法将‘__NSCFDictionary’类型的值 (0x1a1bec968) 转换为 'CKRecordID'。 “
func locationManager(manager: CLLocationManager, didUpdateLocations locations: [CLLocation])
{
let location = locations.last
self.loc1 = location!
let center = CLLocationCoordinate2D(latitude: location!.coordinate.latitude, longitude: location!.coordinate.longitude)
let region = MKCoordinateRegion(center: center, span: MKCoordinateSpan(latitudeDelta: 0.004, longitudeDelta: 0.004))
self.mapView.setRegion(region, animated: true)
self.locationManager.stopUpdatingLocation()
self.locationManager.startMonitoringSignificantLocationChanges()
self.getRecordToUpdate(locations)
let lat: CLLocationDegrees = center.latitude
self.lat1 = lat
let long: CLLocationDegrees = center.longitude
self.long1 = long
locationRecord.setObject(location, forKey: "location")
let publicData = CKContainer.defaultContainer().publicCloudDatabase
publicData.saveRecord(locationRecord) { record, error in
}
if error == nil
{
print("Location saved")
}
}
func getRecordToUpdate(locations:[CLLocation])
{
let defaults = NSUserDefaults.standardUserDefaults()
var locationRecord:CKRecord
if defaults.objectForKey("Location") == nil{
locationRecord = CKRecord(recordType: "location")
let locationDict = ["lat": lat1, "lng": long1]//
defaults.setObject(locationDict, forKey: "Location")//
self.updateLocationRecord(locationRecord, locations: locations)
print("new")
}else{
let publicDB = CKContainer.defaultContainer().publicCloudDatabase
publicDB.fetchRecordWithID((defaults.objectForKey("Location") as! CKRecordID),completionHandler: {
(record, error) in
if error == nil{
self.updateLocationRecord(record!, locations: locations)
print("fetched record")
}else{
print("Error fetching previous record")
}
})
}
}
func updateLocationRecord(locationRecord:CKRecord, locations:[CLLocation])
{
let location = locations.last
locationRecord.setObject(location, forKey: "location")
let publicData = CKContainer.defaultContainer().publicCloudDatabase
publicData.saveRecord(locationRecord) { record, error in
}
if error == nil
{
print("Location saved")
}
}
试试这个
您可以将 NSData 保存到 NSUserDefaults。所以你所需要的就是将你的 CLLocation 对象转换为 NSData 如下:
// saving your CLLocation object
let locationData = NSKeyedArchiver.archivedDataWithRootObject(your location here)
NSUserDefaults.standardUserDefaults().setObject(locationData, forKey: "locationData")
// loading it
if let loadedData = NSUserDefaults.standardUserDefaults().dataForKey("locationData") {
if let loadedLocation = NSKeyedUnarchiver.unarchiveObjectWithData(loadedData) as? CLLocation {
println(loadedLocation.coordinate.latitude)
println(loadedLocation.coordinate.longitude)
}
}