我正在尝试根据从文件中读取的数据创建一些“CLLocation”。第一步是实例化一个“CLLocationCooperative2D”,将其输入到 CLLocation 的初始化程序中。我正在 Playground 中尝试我的想法,这个非常简单的代码会生成一个运行时错误:
import CoreLocation
let lat = 48.8
let lon = -122.3
let point2D = CLLocationCoordinate2D(latitude: lat, longitude: lon)
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错误信息是
error: Execution was interrupted, reason: signal SIGABRT.
The process has been left at the point where it was interrupted, use "thread return -x" to return to the state before expression evaluation.
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我对 Swift 编程还很陌生,我不知道如何处理这些。例如,我如何“使用“thread return -x””来做任何事情谁能告诉我这里发生了什么?
我在地图套件上绘制了动态数量的位置。我很好奇如何将当前的纬度和经度放入单个数组中,因为它们当前被打印为单独的对象,而没有像应有的那样绘制地图。我知道问题所在,但不知道如何解决。这是我当前生成坐标的代码 -
do {
let place = try myContext.executeFetchRequest(fetchRequest) as! [Places]
for coords in place{
let latarray = Double(coords.latitude!)
let lonarray = Double(coords.longitude!)
let arraytitles = coords.title!
let destination:CLLocationCoordinate2D = CLLocationCoordinate2DMake(latarray, lonarray)
print(destination)
} catch let error as NSError {
// failure
print("Fetch failed: \(error.localizedDescription)")
}
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这是控制台中的打印 - 输出
我需要什么才能使打印看起来正常工作 -所需的输出
我希望你明白我的意思。我非常感谢任何帮助!感谢您的阅读。
到目前为止,这是我的代码.我正在尝试将locValue.latitude和locValue.longitude的值存储为字符串或整数.我已经尝试在方法中定义返回类型( - > String等)但是我得到一个错误,说明didChangeAuthorizationStatus方法与协议CLLocationManagerDelegate中的可选需求方法locationManager冲突.
func locationManager(manager: CLLocationManager, didChangeAuthorizationStatus status: CLAuthorizationStatus) {
if status == .AuthorizedAlways {
let locValue:CLLocationCoordinate2D = manager.location!.coordinate
self.dispLocation.text = "locations = \(locValue.latitude) \(locValue.longitude)"
}
}
Run Code Online (Sandbox Code Playgroud) 该EKCalendarItem有属性"位置",但它是一个NSString.新的iOS8功能显示了一个很好的事件地图,所以必须CLLocationCoordinate2D附加一个EKCalendarItem,正确的?我在哪里可以找到这个CLLocationCoordinate2D?
我如何将CLLocationcoordiante转换为double,以便我可以对它进行算术运算并使用它们的大小来比较坐标?在(迅速为ios)
我从谷歌地图得到一个坐标,我想将它分配给一个浮点变量,但它显示了这个错误:
无法指定"CLLocationDegrees"类型的值(也称为"Double")来键入"Float!"
func markerButtonClicked(sender:MapButton) {
let coord = self.getCenterCoordinate()
let addressObj = Address()
addressObj.latitude = coord.latitude
addressObj.longitude = coord.longitude
}
func getCenterCoordinate() -> (CLLocationCoordinate2D) {
let location = CGPoint(x:self.mView.bounds.size.width/2,y:self.mView.bounds.size.height/2)
let coord = self.mView.projection .coordinate(for: location)
return coord
}
class Address: NSObject {
var latitude:Float!
var longitude:Float!
}
Run Code Online (Sandbox Code Playgroud) 我正在使用Contentful.com我的iOS应用程序作为内容后端.geo-point在我的Swift项目中,我不能让他们回到我身边.
Contentful文档说他们的API回报是" NSData与" CLLocationCoordinate2D struct.
我NSValue在我的项目中接近这个,但我无法让它正常工作.这是我的代码:
var locationCoord:CLLocationCoordinate2D = CLLocationCoordinate2D(latitude: 0,longitude: 0)
var locationData:NSData = entry.fields["location"] as NSData
var locationValue:NSValue = NSValue(bytes: locationData.bytes, objCType: "CLLocationCoordinate2D")
locationCoord = locationValue.MKCoordinateValue
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然而,locationCoord.latitude和locationCoord.longitude return错误值(他们总是被一个0.0).
有人能告诉我这里我做错了什么,以及如何正常工作?谢谢.
我使用CLLocationCoordinate2D获取用户的当前位置,然后将其用于Parse的nearGeoPoint.
我知道我可以简单地使用geoPointForCurrentLocationInBackground但我宁愿用CLLocationCoordinate2D检索.
objective-c ios parse-platform geopoints cllocationcoordinate2d
尝试构建我的数据时,我不断收到 Use of unresolved identifier 'CLLocationCoordinate2D' 。这是一个保存数据的类,它附加了一个我稍后将在 Map 和 TableViewController 中使用的数组。关于为什么我收到此错误的任何想法?
导入基础导入 UIKit 导入 CoreData
class StationsData: NSObject {
//define the varibles
init () {
}
var stations: [StationItem]
//initiate the array and assig the values to the array
required init(coder aDecoder: NSCoder) {
stations = [StationItem]()
let row0 = StationItem(title: "Station1", address: "25 Israel Eldad St, Jerusalem", coordinate: CLLocationCoordinate2D(latitude: 31.7513239, longitude: 35.224822899999936))
stations.append(row0)
let row1 = StationItem(title: "Station2", address: "25 Israel Eldad St, Jerusalem", coordinate: CLLocationCoordinate2D(latitude: 0.0, longitude: 0.0)) …Run Code Online (Sandbox Code Playgroud) 我想从坐标中获取地址。我在下面附上了我的代码..
func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
let lastLocation = locations.last!
let latvalue = lastLocation.coordinate.latitude
let lngvalue = lastLocation.coordinate.longitude
self.db_latvalue = latvalue
self.db_lngvalue = lngvalue
let location = CLLocation(latitude: latvalue, longitude:lngvalue)
let address = CLGeocoder.init()
address.reverseGeocodeLocation(CLLocation.init(latitude: latvalue, longitude:lngvalue)) { (places, error) in
if error == nil{
if let place = places{
print("addressshowingssq \(place)")
self.db_address = "\(place)"
}
}
}
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输出:
[L-30 2nd A Main Road, L-30 2nd A Main Road, HSR Layout, Bengaluru, Karnataka 560102, India @ <+12.91597974,+77.62879254> …
我构建了一个视图混合与地图视图和表视图,我希望我可以按距离用户位置排序单元格,我尝试使用distanceFromLoaction方法,但它显示CLLocationCoordinate没有成员distanceFromLocaiton,还有另一种方法可以做它还是修好了?
这是我的数组结构
import UIKit
import MapKit
class tripSpot: NSObject, MKAnnotation{
var title: String?
var coordinate: CLLocationCoordinate2D
var regionRadius: Double
var location: String?
var type: String?
init(title:String , coordinate: CLLocationCoordinate2D , regionRadius: Double, location: String, type: String ){
self.title = title
self.coordinate = coordinate
self.regionRadius = regionRadius
self.location = location
self.type = type
}
}
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和我的tableviewcode
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier("MapCell") as! mapTableViewCell
self.tripspot.sort({ $0.coordinate.distanceFromLoaction(self.coordinate) < $1.coordinate.distanceInKilometersTo(self.coordinate)})
if searchController.active{
cell.title.text = searchResults[indexPath.row].title
cell.location.text …Run Code Online (Sandbox Code Playgroud) swift ×8
ios ×4
ios8 ×2
location ×2
mapkit ×2
swift2 ×2
calendar ×1
cllocation ×1
coordinate ×1
coordinates ×1
dictionary ×1
distance ×1
ekevent ×1
geopoints ×1
int ×1
ios9 ×1
nsvalue ×1
objective-c ×1
runtime ×1
sorting ×1