应用加载时，系统会提示用户启用位置权限。只有当用户在该弹出窗口中点击“允许”或“不允许”时，我才想移动到下一页。

我看到了一些问题，例如 this但他们没有帮助。

我的代码:

var locationManager = new CLLocationManager();
locationManager.AuthorizationChanged += (object sender, CLAuthorizationChangedEventArgs e) => 
{
   if(ee.Status == CLAuthorizationStatus.AuthorizedAlways || ee.Status ==CLAuthorizationStatus.Denied)
    {
      //Goto next page
    }
    if (UIDevice.CurrentDevice.CheckSystemVersion(8, 0))
    {
        locationManager.DesiredAccuracy = CLLocation.AccuracyBest;
        locationManager.DistanceFilter = CLLocationDistance.FilterNone;
        locationManager.RequestAlwaysAuthorization();
    }
}

弹出位置对话框时提示 AuthorizationChanged，状态始终为 CLAuthorizationStatus.NotDetermined，并且无法检测用户何时单击“允许”或“不允许”。

最佳答案

When the app loads, user is prompted with enable location permission. I want to move to next page only when the user hits "allow" or "don't allow" on that popup.

在您的 ViewDidLoad 方法中，您可以执行如下操作:

// showTrackingMap is a class level var
showTrackingMap = new LocationCheck((s, ev) =>
{
    if ((ev as LocationCheck.LocationCheckEventArgs).Allowed)
        Console.WriteLine("Present Tracking Map ViewController");
    else
        Console.WriteLine("Disable Tracking Map");
    showTrackingMap.Dispose();
});

LocationCheck 封装位置请求，一旦用户始终接受，仅在应用程序中或拒绝位置隐私请求，EventHandler 将触发。

注意:如果用户被指示转到设置以将应用程序从先前拒绝更改为允许(始终/app in-使用)。

public class LocationCheck : NSObject, ICLLocationManagerDelegate
{
    public class LocationCheckEventArgs : EventArgs
    {
        public readonly bool Allowed;
        public LocationCheckEventArgs(bool Allowed)
        {
            this.Allowed = Allowed;
        }
    }

    CLLocationManager locationManager;
    EventHandler locationStatus;

    public LocationCheck(EventHandler locationStatus)
    {
        this.locationStatus = locationStatus;
        Initialize();
    }

    public LocationCheck(NSObjectFlag x) : base(x) { Initialize(); }

    public LocationCheck(IntPtr handle) : base(handle) { Initialize(); }

    public LocationCheck(IntPtr handle, bool alloced) : base(handle, alloced) { Initialize(); }

    public void Initialize()
    {
        locationManager = new CLLocationManager
        {
            Delegate = this
        };
        locationManager.RequestAlwaysAuthorization();
    }

    [Export("locationManager:didChangeAuthorizationStatus:")]
    public void AuthorizationChanged(CLLocationManager manager, CLAuthorizationStatus status)
    {
        switch (status)
        {
            case CLAuthorizationStatus.AuthorizedAlways:
            case CLAuthorizationStatus.AuthorizedWhenInUse:
                locationStatus.Invoke(locationManager, new LocationCheckEventArgs(true));
                break;
            case CLAuthorizationStatus.Denied:
            case CLAuthorizationStatus.Restricted:
                locationStatus.Invoke(locationManager, new LocationCheckEventArgs(false));
                break;
        }
    }

    protected override void Dispose(bool disposing)
    {
        locationStatus = null;
        locationManager.Delegate = null;
        locationManager.Dispose();
        base.Dispose(disposing);
    }
}

关于ios - xamarin iOS : Location Request how to find out when user clicks “Allow” or “Don' t allow” is clicked，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/46739664/