ios 如何使用swift中的坐标以编程方式打开地图应用程序？
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How to open maps App programmatically with coordinates in swift?
提问by Dharmesh Kheni
I have latitude and longitude that I want to open into my map application. I tried this code from HERE.
我有要在地图应用程序中打开的纬度和经度。我从HERE尝试了这段代码。
func goToMap(){
var lat1 : NSString = self.venueLat
var lng1 : NSString = self.venueLng
var latitude:CLLocationDegrees = lat1.doubleValue
var longitude:CLLocationDegrees = lng1.doubleValue
var coordinate = CLLocationCoordinate2DMake(latitude, longitude)
var placemark : MKPlacemark = MKPlacemark(coordinate: coordinate, addressDictionary:nil)
var mapItem:MKMapItem = MKMapItem(placemark: placemark)
mapItem.name = "Target location"
let launchOptions:NSDictionary = NSDictionary(object: MKLaunchOptionsDirectionsModeDriving, forKey: MKLaunchOptionsDirectionsModeKey)
var currentLocationMapItem:MKMapItem = MKMapItem.mapItemForCurrentLocation()
MKMapItem.openMapsWithItems([currentLocationMapItem, mapItem], launchOptions: launchOptions)
}
This function successfully open maps but it doesn't show any pin. Also it shows user location which I don't want. I only want a pin on the map for the provided latitude and longitude.
此功能成功打开地图，但不显示任何图钉。它还显示了我不想要的用户位置。我只想要地图上提供的纬度和经度的图钉。
回答by Dharmesh Kheni
This code is working fine for me.
这段代码对我来说很好用。
func openMapForPlace() {
let lat1 : NSString = self.venueLat
let lng1 : NSString = self.venueLng
let latitude:CLLocationDegrees = lat1.doubleValue
let longitude:CLLocationDegrees = lng1.doubleValue
let regionDistance:CLLocationDistance = 10000
let coordinates = CLLocationCoordinate2DMake(latitude, longitude)
let regionSpan = MKCoordinateRegionMakeWithDistance(coordinates, regionDistance, regionDistance)
let options = [
MKLaunchOptionsMapCenterKey: NSValue(MKCoordinate: regionSpan.center),
MKLaunchOptionsMapSpanKey: NSValue(MKCoordinateSpan: regionSpan.span)
]
let placemark = MKPlacemark(coordinate: coordinates, addressDictionary: nil)
let mapItem = MKMapItem(placemark: placemark)
mapItem.name = "\(self.venueName)"
mapItem.openInMapsWithLaunchOptions(options)
}
For swift 3.0:
对于 Swift 3.0：
import UIKit
import MapKit
class ViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
openMapForPlace()
}
func openMapForPlace() {
let latitude: CLLocationDegrees = 37.2
let longitude: CLLocationDegrees = 22.9
let regionDistance:CLLocationDistance = 10000
let coordinates = CLLocationCoordinate2DMake(latitude, longitude)
let regionSpan = MKCoordinateRegionMakeWithDistance(coordinates, regionDistance, regionDistance)
let options = [
MKLaunchOptionsMapCenterKey: NSValue(mkCoordinate: regionSpan.center),
MKLaunchOptionsMapSpanKey: NSValue(mkCoordinateSpan: regionSpan.span)
]
let placemark = MKPlacemark(coordinate: coordinates, addressDictionary: nil)
let mapItem = MKMapItem(placemark: placemark)
mapItem.name = "Place Name"
mapItem.openInMaps(launchOptions: options)
}
}
回答by Joe C
If you just want to give the user driving directions, here's the latest Swift syntax in its simplest form:
如果您只想为用户提供行车路线，这里是最简单形式的最新 Swift 语法：
let coordinate = CLLocationCoordinate2DMake(theLatitude,theLongitude)
let mapItem = MKMapItem(placemark: MKPlacemark(coordinate: coordinate, addressDictionary:nil))
mapItem.name = "Target location"
mapItem.openInMaps(launchOptions: [MKLaunchOptionsDirectionsModeKey : MKLaunchOptionsDirectionsModeDriving])
回答by dimpiax
You could call class function of MKMapItempassing items there, it uses only first and last for source / destination appropriately, if you want pass more than two items.
您可以MKMapItem在那里调用传递项目的类函数，如果您想传递两个以上的项目，它仅适当地使用第一个和最后一个作为源/目标。
Swift 5, 4
斯威夫特 5、4
let source = MKMapItem(placemark: MKPlacemark(coordinate: CLLocationCoordinate2D(latitude: lat, longitude: lng)))
source.name = "Source"
let destination = MKMapItem(placemark: MKPlacemark(coordinate: CLLocationCoordinate2D(latitude: lat, longitude: lng)))
destination.name = "Destination"
MKMapItem.openMaps(with: [source, destination], launchOptions: [MKLaunchOptionsDirectionsModeKey: MKLaunchOptionsDirectionsModeDriving])
or using extension:
或使用扩展名：
extension MKMapItem {
convenience init(coordinate: CLLocationCoordinate2D, name: String) {
self.init(placemark: .init(coordinate: coordinate))
self.name = name
}
}
let source = MKMapItem(coordinate: .init(latitude: lat, longitude: lng), name: "Source")
let destination = MKMapItem(coordinate: .init(latitude: lat, longitude: lng), name: "Destination")
MKMapItem.openMaps(
with: [source, destination],
launchOptions: [MKLaunchOptionsDirectionsModeKey: MKLaunchOptionsDirectionsModeDriving])
回答by Daniel Saidi
The MKMapItemapproach above works great if you want granular control over the information that is displayed in Maps.
该MKMapItem如果您想对显示在地图上的信息，精细的控制方法之上的伟大工程。
Otherwise, the code below works great as well, :
否则，下面的代码也很好用，：
// Open and show coordinate
let url = "http://maps.apple.com/maps?saddr=\(coord.latitude),\(coord.longitude)"
UIApplication.shared.openURL(URL(string:url)!)
// Navigate from one coordinate to another
let url = "http://maps.apple.com/maps?saddr=\(from.latitude),\(from.longitude)&daddr=\(to.latitude),\(to.longitude)"
UIApplication.shared.openURL(URL(string:url)!)
However, the code above does not let you to send in a custom name of the place. Instead, it will show the address.
但是，上面的代码不允许您发送地点的自定义名称。相反，它将显示地址。
The code above also lets you navigate from any source coordinate, which I don't know if you can do with the MKMapItem approach.
上面的代码还可以让您从任何源坐标进行导航，我不知道您是否可以使用 MKMapItem 方法。
回答by Wayne Huang
This works as a charm for me
这对我来说是一种魅力
let coordinate = CLLocationCoordinate2DMake(theLatitude, theLongitude)
let region = MKCoordinateRegionMake(coordinate, MKCoordinateSpanMake(0.01, 0.02))
let placemark = MKPlacemark(coordinate: coordinate, addressDictionary: nil)
let mapItem = MKMapItem(placemark: placemark)
let options = [
MKLaunchOptionsMapCenterKey: NSValue(mkCoordinate: region.center),
MKLaunchOptionsMapSpanKey: NSValue(mkCoordinateSpan: region.span)]
mapItem.name = theLocationName
mapItem.openInMaps(launchOptions: options)
回答by Malik 007
You can use below code to show PIN on lat, long in to Apple map.
您可以使用以下代码在 lat 上显示 PIN，长在 Apple 地图中。
let coordinates = CLLocationCoordinate2DMake(-37.848854,144.990295)
let regionSpan = MKCoordinateRegionMakeWithDistance(coordinates, 1000, 1000)
let placemark = MKPlacemark(coordinate: coordinates, addressDictionary: nil)
let mapItem = MKMapItem(placemark: placemark)
mapItem.name = “Desired place”
mapItem.openInMaps(launchOptions:[
MKLaunchOptionsMapCenterKey: NSValue(mkCoordinate: regionSpan.center)
] as [String : Any])
回答by rgkobashi
If what you want is something simple without importing any framework you can just create a URL: https://maps.apple.com/?ll=\(latitude),\(longitude)
如果你想要的是简单的东西而不需要导入任何框架，你可以创建一个 URL： https://maps.apple.com/?ll=\(latitude),\(longitude)
Is similar to @saniel-saidi response but this one opens just the map with location sent, not the navigation thing
类似于@saniel-saidi 响应，但此响应仅打开带有已发送位置的地图，而不是导航内容
回答by Alfi
I know all answers are complete but here I got an answer which is easier to copy paste & also gives the user options to routing with Apple Maps, Google Map & Waze.
我知道所有答案都是完整的，但在这里我得到了一个更容易复制粘贴的答案，并且还为用户提供了使用 Apple Maps、Google Map 和 Waze 进行路由的选项。
Working with Swift 5+
使用Swift 5+
https://stackoverflow.com/a/60930491/6449292
https://stackoverflow.com/a/60930491/6449292
Might help someone...
可能会帮助某人...
