Question

我尝试过使用Swift的简单CoreLocation示例，但我无法让事情发挥作用。我已经提取了大部分代码，所以它只是准系统以便集中讨论这个问题，而且我希望这个答案可以迅速传达给某人。

import UIKit

import CoreLocation


class ViewController: UIViewController,CLLocationManagerDelegate {
@IBOutlet weak var txtLatitude: UITextField!
@IBOutlet weak var txtLongitude: UITextField!

@IBOutlet weak var cmdLocateMe: UIButton!
@IBOutlet weak var slider: UISlider!
@IBOutlet weak var txtSlider: UITextField!
@IBOutlet weak var power: UISwitch!
var locationManager: CLLocationManager!


override func viewDidLoad() {
    locationManager = CLLocationManager();
    locationManager.delegate = self;
    locationManager.desiredAccuracy = kCLLocationAccuracyBest
    locationManager.startUpdatingLocation();
    super.viewDidLoad()


    // Do any additional setup after loading the view, typically from a nib.
}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}


@IBAction func valueChanged(sender: UISlider) {
    if power.on{
    var val = "\(slider.value)";
    txtSlider.text = val;
    }
}


@IBAction func cmdLocateMeClicked(sender: UIButton) {


}

//Deprecated
@IBAction func cmdLocateMePressed(sender: AnyObject) {
}

//CLLocationManagerDelegate
func locationManager(manager: CLLocationManager!, didUpdateLocations locations: [AnyObject]!) {
    var location:CLLocation = locations[locations.count-1] as CLLocation

    println("locations = \(locations)")
    txtLatitude.text = "\(location.coordinate.latitude)";
    txtLongitude.text = "\(location.coordinate.longitude)";
}

func locationManager(manager: CLLocationManager!, didFailWithError error: NSError!) {
    println(error)
    txtLatitude.text = "Can't get your location!"
}

}

Answer 1

想出来 - 我必须授予我的应用程序权限才能在iOS模拟器上接收位置信息（设置 - ＆gt;隐私 - ＆gt;位置）。一旦我做到了，事情就完美了。

获得一个非常简单的Swift CoreLocation示例

1 个答案: