swiftでMapを外部アプリとして起動する

実装例

import CoreLocation

// 参考サイト
// - Map Links: https://developer.apple.com/library/ios/featuredarticles/iPhoneURLScheme_Reference/MapLinks/MapLinks.html
//

class MapLinkUtils {  
  // 目的地周辺の地図を表示する
  class func showLocation(location: CLLocation, address: String) {
    let daddr = NSString(format: "%f,%f", location.coordinate.latitude,  location.coordinate.longitude)
    let urlString = "http://maps.apple.com/?ll=\(daddr)&address=\(address)"
    print(urlString)
    let encodedUrl = urlString.stringByAddingPercentEncodingWithAllowedCharacters(NSCharacterSet.URLQueryAllowedCharacterSet())!
    let url = NSURL(string: encodedUrl)!
    UIApplication.sharedApplication().openURL(url)
  }

  // 経路情報を表示する
  class func showNavigation(srcLocation: CLLocation, destLocation: CLLocation, address: String) {
    let saddr = NSString(format: "%f,%f", srcLocation.coordinate.latitude,  srcLocation.coordinate.longitude)
    let daddr = NSString(format: "%f,%f", destLocation.coordinate.latitude, destLocation.coordinate.longitude)
    let urlString = "http://maps.apple.com/?saddr=\(saddr)&daddr=\(daddr)&dirflg=d&q=\(address)"
    print(urlString)
    let encodedUrl = urlString.stringByAddingPercentEncodingWithAllowedCharacters(NSCharacterSet.URLQueryAllowedCharacterSet())!
    let url = NSURL(string: encodedUrl)!
    UIApplication.sharedApplication().openURL(url)
  }
}

参考

• Map Links