如何显示用户定义的位置

我是新来的swift。
请指导我如何在地图上显示location当用户在文本框中输入任何地方。

通过使用此文本字段字符串如何在map上显示此位置。这是我的代码如何显示用户定义的位置

import UIKit 
import CoreLocation 
import MapKit 
class DetailViewController: UIViewController, CLLocationManagerDelegate, MKMapViewDelegate { 

var manager:CLLocationManager! 
var myLocations: [CLLocation] = [] 


required init(coder aDecoder: NSCoder) 
{ 
    super.init(coder: aDecoder) 
} 

override func viewDidLoad() { 
    super.viewDidLoad() 
//Setup our Location Manager 
    manager = CLLocationManager() 
    manager.delegate = self 
    manager.desiredAccuracy = kCLLocationAccuracyBest 
    manager.requestAlwaysAuthorization() 
    manager.startUpdatingLocation() 
    //Setup our Map View 
    theMap.delegate = self 
    theMap.mapType = MKMapType.Satellite 
    theMap.showsUserLocation = true 

} 
func locationManager(manager:CLLocationManager, didUpdateLocations locations:[AnyObject]) { 
    theLabel.text = "\(locations[0])" 
    myLocations.append(locations[0] as CLLocation) 

    let spanX = 0.007 
    let spanY = 0.007 
    var newRegion = MKCoordinateRegion(center: theMap.userLocation.coordinate, span: MKCoordinateSpanMake(spanX, spanY)) 
    theMap.setRegion(newRegion, animated: true) 
    if (myLocations.count > 1){ 
     var sourceIndex = myLocations.count - 1 
     var destinationIndex = myLocations.count - 2 
     let c1 = myLocations[sourceIndex].coordinate 
     let c2 = myLocations[destinationIndex].coordinate 
     var a = [c1, c2] 
     var polyline = MKPolyline(coordinates: &a, count: a.count) 
     theMap.addOverlay(polyline) 
    } 
}

感谢

来源

2015-01-15 sujit

我假设你的视图控制器是如何在designed.When用户点击“查找位置”按钮，我们将通过用户输入的文字转换成地址并在地图上放置注释。 enter image description here

@IBOutlet var userinput: UITextField! 
@IBAction func findlocation(sender: AnyObject) { 
if(userinput.text == "") 
{ 
//location cannot be empty.Show an alert to notify user 
} 
else 
{ 
    var address:String = userinput.text as String // 1 Infinite Loop, CA, USA 
var geocoder = CLGeocoder() 
geocoder.geocodeAddressString(address, {(placemarks: [AnyObject]!, error: NSError!) -> Void in 
if let placemark = placemarks?[0] as? CLPlacemark { 
     self.mapView.addAnnotation(MKPlacemark(placemark: placemark)) 
} 
}) 
} 
}

来源

2015-02-01 13:26:52

如何显示用户定义的位置

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