在 Swift 中，当我按下按钮时，如何将用户的位置存储在变量中？

Question

在主UIViewController 中，当用户按下UIButton 时，我想将用户的坐标存储在一个变量中。此变量将用于另一个带有MapView 的UIViewController。

我尝试设置locationManager()，但无法让按钮使用它。有人可以帮忙吗？

Answer 1

以下代码可以帮助您：

var location: CLLocation! //to store location
lazy var locationManager: CLLocationManager = {
    let _locationManager = CLLocationManager()
    _locationManager.requestWhenInUseAuthorization()
    // adjsut _locationManager
    return _locationManager
}()

override func viewDidLoad() {
    super.viewDidLoad()
    locationManager.startUpdatingLocation()
}

@IBAction func buttonDidClick(sender: AnyObject) { //event handler
    location = locationManager.location //set current location
}

override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
    if segue.identifier == "MyViewControllerSegue" { //before showing controller
        let dvc = segue.destinationViewController as! ViewController
        dvc.location = location //set the current location
    }
}