地图按钮刷新位置

本文介绍了地图按钮刷新位置的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述 我正在为iPad的第一个快速申请工作。到目前为止，我有一个基本的地图视图，在底部工具栏中有一个按钮，我想刷新并点击用户位置一次点击。 目前我有这个代码： import UIKit import MapKit import CoreLocation class ViewController： UIViewController，MKMapViewDelegate，CLLocationManagerDelegate { var location：CLLocation！ let LocationManager = CLLocationManager（） @IBOutlet weak var mapView：MKMapView！ @IBOutlet weak var refresh：UIBarButtonItem！ @IBAction func refresh（sender：AnyObject）{ let center = CLLocationCoordinate2D（纬度：location.coordinate.latitude，longitude：location.coordinate.longitude） let region = MKCoordinateRegion（center：center，span：MKCoordinateSpan（latitudeDelta：0.01，longitudeDelta：0.01）） self.mapView.setRegion（region，animated：true）} 覆盖func viewDidLoad（）{ super.viewDidLoad（） self.locationManager.delegate = self self。 locationManager.desiredAccuracy = kCLLocationAccuracyBest self.locationManager.requestWhenInUseAuthorization（） self.locationManager.startUpdatingLocation（） self.mapView.showsUserLocation = true } 覆盖func didReceiveMemoryWarning（）{ super.didReceiveMemoryWarning（） //处理可以重新创建的任何资源。 } //位置委托方法 func locationManager（manager：CLLocationManager，didUpdateLocations locations：[CLLocation]）{ let location = locations.last let center = CLLocationCoordinate2D（纬度：location！.coordinate.latitude，longitude：location！.coordinate.longitude） let region = MKCoordinateRegion（center ：center，span：MKCoordinateSpan（latitudeDelta：1，longitudeDelta：1）） self.mapView.setRegion（region，animated：true） self.locationManager.stopUpdatingLocation ） } func locationManager（manager：CLLocationManager，didFailWithError error：NSError） { print（错误代码：+ error.localizedDescription ）} } 如何获得刷新按钮来做到这一点？我真的需要一些帮助，因为我是新的Swift / xcode：） 谢谢解决方案由于@Orkhan说你可以这样做。 如果你想做这个动作，你只需简单的Ctrl Ctrl拖动到viewController选择动作。 之后，您可以添加代码到处理程序。 var location：CLLocation！ @IBAction func refreshLocation（sender：AnyObject）{ let center = CLLocationCoordinate2D（纬度：location.coordinate.latitude，longitude：location.coordinate.longitude） let region = MKCoordinateRegion（center：center，span：MKCoordinateSpan（latitudeDelta：0.01，longitudeDelta：0.01）） self.map.setRegion（region，animated：true）} func locationManager（manager：CLLocationManager !, didUpdateLocations locations：[AnyObject]！）{ self.location = locations.last as CLLocation } I am working on my first swift application for the iPad. Thus far I have a basic mapview with a button in the bottom toolbar, which I would like to refresh and focus onto the users location once clicked.Currently I have this code:import UIKitimport MapKitimport CoreLocationclass ViewController: UIViewController, MKMapViewDelegate, CLLocationManagerDelegate {var location: CLLocation!let locationManager = CLLocationManager()@IBOutlet weak var mapView: MKMapView!@IBOutlet weak var refresh: UIBarButtonItem!@IBAction func refresh(sender: AnyObject) { let center = CLLocationCoordinate2D(latitude: location.coordinate.latitude, longitude: location.coordinate.longitude) let region = MKCoordinateRegion(center: center, span: MKCoordinateSpan(latitudeDelta: 0.01, longitudeDelta: 0.01)) self.mapView.setRegion(region, animated: true)}override func viewDidLoad() { super.viewDidLoad() self.locationManager.delegate = self self.locationManager.desiredAccuracy = kCLLocationAccuracyBest self.locationManager.requestWhenInUseAuthorization() self.locationManager.startUpdatingLocation() self.mapView.showsUserLocation = true}override func didReceiveMemoryWarning() { super.didReceiveMemoryWarning() // Dispose of any resources that can be recreated.}// location delegate methodsfunc locationManager(manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) { let location = locations.last let center = CLLocationCoordinate2D(latitude: location!.coordinate.latitude, longitude: location!.coordinate.longitude) let region = MKCoordinateRegion(center: center, span: MKCoordinateSpan(latitudeDelta: 1, longitudeDelta: 1)) self.mapView.setRegion(region, animated: true) self.locationManager.stopUpdatingLocation()}func locationManager(manager: CLLocationManager, didFailWithError error: NSError){ print("Error code: " + error.localizedDescription)}}How can I get the refresh button to do this? I really need some help as I am new to Swift / xcode :)Thank you 解决方案 As @Orkhan said you can do it in this way.If you want to do the action you just simple ctrl-drag to viewController and select "Action".After that you can add code to the handler. var location: CLLocation! @IBAction func refreshLocation(sender: AnyObject) { let center = CLLocationCoordinate2D(latitude: location.coordinate.latitude, longitude: location.coordinate.longitude) let region = MKCoordinateRegion(center: center, span: MKCoordinateSpan(latitudeDelta: 0.01, longitudeDelta: 0.01)) self.map.setRegion(region, animated: true)}func locationManager(manager: CLLocationManager!, didUpdateLocations locations: [AnyObject]!) { self.location = locations.last as CLLocation} 这篇关于地图按钮刷新位置的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！