public GetGeoXaml()
{
InitializeComponent();
map.MoveToRegion(MapSpan.FromCenterAndRadius(centerPosition, Distance.FromKilometers(4d)));
button.Clicked += async(sender, e) =>
{
var locator = CrossGeolocator.Current;
locator.DesiredAccuracy = 50;
var location = await locator.GetPositionAsync(10000);
LatLabel.Text = "Lat: " + location.Latitude.ToString("N6");
LonLabel.Text = "Lon: " + location.Longitude.ToString("N6");
var addr = await getAddress.GetJsonAsync(location.Latitude, location.Longitude) ?? "取得できませんでした";
AddrLabel.Text = "Address: " + addr;
// Map を移動させてピン打ち
map.MoveToRegion(MapSpan.FromCenterAndRadius(new Position(location.Latitude, location.Longitude), Distance.FromKilometers(4d)));
if (map.Pins.Count() > 0)
{
map.Pins.Clear();
}
pin = new Pin
{
Position = new Position(location.Latitude, location.Longitude),
Label = addr,
};
map.Pins.Add(pin);
};
}
public override void ViewDidLoad()
{
base.ViewDidLoad();
map.SetRegion(
new MKCoordinateRegion(
centerPosition, // 初期位置
new MKCoordinateSpan(0.1d, 0.1d)),
true);
locMgr = new CLLocationManager();
locMgr.RequestWhenInUseAuthorization();
button.TouchUpInside += (s, _) =>
{
locMgr.DesiredAccuracy = 1000;
locMgr.LocationsUpdated += async(object sender, CLLocationsUpdatedEventArgs e) =>
{
var location = e.Locations[e.Locations.Length - 1];
LatitudeText.Text = "Lat: " + location.Coordinate.Latitude.ToString("N6");
LongitudeText.Text = "Lon: " + location.Coordinate.Longitude.ToString("N6");
// PCL で Google Maps API Web サービスに Lat, Lon を投げて住所を取得しています。
// Http通信を行う場合、iOSプロジェクトにもSystem.Net.Httpの参照が必要なようです。
// https://forums.xamarin.com/discussion/36713/issue-with-microsoft-http-net-library-operation-is-not-valid-due-to-the-current-state-of-the-objec
var addr = await getAddress.GetJsonAsync(location.Coordinate.Latitude, location.Coordinate.Longitude) ?? "取得できませんでした";
System.Diagnostics.Debug.WriteLine("AddressResult", addr);
AddrText.Text = "Address: " + addr;
// Map 移動
map.SetRegion(
new MKCoordinateRegion(
new CLLocationCoordinate2D(location.Coordinate.Latitude, location.Coordinate.Longitude),
new MKCoordinateSpan(0.1d, 0.1d)),
true);
// Pin 追加
map.AddAnnotations(new MKPointAnnotation()
{
Title = addr,
Coordinate = new CLLocationCoordinate2D(location.Coordinate.Latitude, location.Coordinate.Longitude)
});
locMgr.StopUpdatingLocation();
};
locMgr.StartUpdatingLocation(); // なぜ下に書くのかあめいさんに聞いてみよう。
};
}
public override void ViewDidLoad()
{
base.ViewDidLoad();
map.SetRegion(
new MKCoordinateRegion(
centerPosition, // 初期位置
new MKCoordinateSpan(0.1d, 0.1d)),
true);
locMgr = new CLLocationManager();
locMgr.RequestWhenInUseAuthorization();
button.TouchUpInside += (s, _) =>
{
locMgr.DesiredAccuracy = 1000;
locMgr.LocationsUpdated += async(object sender, CLLocationsUpdatedEventArgs e) =>
{
var location = e.Locations[e.Locations.Length - 1];
LatitudeText.Text = "Lat: " + location.Coordinate.Latitude.ToString("N6");
LongitudeText.Text = "Lon: " + location.Coordinate.Longitude.ToString("N6");
// PCL で Google Maps API Web サービスに Lat, Lon を投げて住所を取得しています。
var addr = await getAddress.GetJsonAsync(location.Coordinate.Latitude, location.Coordinate.Longitude) ?? "取得できませんでした";
System.Diagnostics.Debug.WriteLine("AddressResult", addr);
AddrText.Text = "Address: " + addr;
// Map 移動
map.SetRegion(
new MKCoordinateRegion(
new CLLocationCoordinate2D(location.Coordinate.Latitude, location.Coordinate.Longitude),
new MKCoordinateSpan(0.1d, 0.1d)),
true);
// Pin 追加
map.AddAnnotations(new MKPointAnnotation()
{
Title = addr,
Coordinate = new CLLocationCoordinate2D(location.Coordinate.Latitude, location.Coordinate.Longitude)
});
locMgr.StopUpdatingLocation();
};
locMgr.StartUpdatingLocation(); // なぜ下に書くのかあめいさんに聞いてみよう。
};
}
private async void GetLocationButton_Click(object sender, RoutedEventArgs e)
{
Geolocator geolocator = new Geolocator();
geolocator.DesiredAccuracyInMeters = 50;
try
{
Geoposition location = await geolocator.GetGeopositionAsync(
maximumAge : TimeSpan.FromMinutes(5),
timeout : TimeSpan.FromSeconds(10)
);
Geocoordinate cordinate = location.Coordinate;
LatitudeText.Text = "Lat: " + location.Coordinate.Point.Position.Latitude.ToString("N6");
LongitudeText.Text = "Lon: " + location.Coordinate.Point.Position.Longitude.ToString("N6");
// PCL で Google Maps API Web サービスに Lat, Lon を投げて住所を取得しています。
var addr = await getAddress.GetJsonAsync(location.Coordinate.Point.Position.Latitude, location.Coordinate.Point.Position.Longitude) ?? "取得できませんでした";
System.Diagnostics.Debug.WriteLine("AddressResult", addr);
AddressText.Text = "Address: " + addr;
this.map.Center = cordinate.Point;
map.ZoomLevel = 15;
}
catch (Exception ex)
{
if ((uint)ex.HResult == 0x80004004)
{
// the application does not have the right capability or the location master switch is off
AddressText.Text = "location is disabled in phone settings.";
}
//else
{
// something else happened acquring the location
}
}
}
public async void OnLocationChanged(Android.Locations.Location location)
{
marker = null;
Log.Debug(tag, "Location changed");
latitude.Text = "Lat: " + location.Latitude.ToString();
longitude.Text = "Lon: " + location.Longitude.ToString();
provider.Text = "Provider: " + location.Provider.ToString();
// PCL で Google Geocoding API Web サービスに Lat, Lon を投げて住所を取得しています。
var addr = await getAddress.GetJsonAsync(location.Latitude, location.Longitude) ?? "取得できませんでした";
Log.Debug("AddressResult", addr);
address.Text = "Address: " + addr;
// 取得した Lat, Lon を Map に投げます。
map.AnimateCamera(CameraUpdateFactory.NewCameraPosition(
new CameraPosition(
new LatLng(location.Latitude, location.Longitude), 14f, 0f, 0f)));
marker = map.AddMarker(new MarkerOptions()
.SetTitle(addr)
.SetPosition(new LatLng(location.Latitude, location.Longitude)));
}
public GetGeoCS()
{
map = new Map(
MapSpan.FromCenterAndRadius(
centerPosition, // 初期位置
Distance.FromKilometers(2))) // 4km 圏内(?)
{
HorizontalOptions = LayoutOptions.FillAndExpand,
HasZoomEnabled = true,
IsShowingUser = true,
};
LatLabel = new Label
{
Text = "Lat:",
HorizontalOptions = LayoutOptions.FillAndExpand,
FontSize = Device.GetNamedSize(NamedSize.Medium, typeof(Label)),
};
LonLabel = new Label
{
Text = "Lon:",
HorizontalOptions = LayoutOptions.FillAndExpand,
FontSize = Device.GetNamedSize(NamedSize.Medium, typeof(Label)),
};
AddrLabel = new Label
{
Text = "Address:",
FontSize = Device.GetNamedSize(NamedSize.Medium, typeof(Label)),
};
var getGeoButton = new Button
{
Text = "Get Location",
};
getGeoButton.Clicked += async(sender, e) =>
{
var locator = CrossGeolocator.Current;
locator.DesiredAccuracy = 50;
locator.AllowsBackgroundUpdates = false;
var location = await locator.GetPositionAsync(10000);
System.Diagnostics.Debug.WriteLine("Lat: " + location.Latitude.ToString("N6") + "Lan: " + location.Longitude.ToString("N6"));
Device.BeginInvokeOnMainThread(() =>
{
LatLabel.Text = "Lat: " + location.Latitude.ToString("N6");
LonLabel.Text = "Lon: " + location.Longitude.ToString("N6");
});
var addr = "";
try
{
addr = await getAddress.GetJsonAsync(location.Latitude, location.Longitude) ?? "取得できませんでした";
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.InnerException);
}
AddrLabel.Text = "Address: " + addr;
// Map を移動させてピン打ち
map.MoveToRegion(MapSpan.FromCenterAndRadius(new Position(location.Latitude, location.Longitude), Distance.FromKilometers(4d)));
if (map.Pins.Count() > 0)
{
map.Pins.Clear();
}
pin = new Pin
{
Position = new Position(location.Latitude, location.Longitude),
Label = addr,
};
map.Pins.Add(pin);
};
Title = "XF_GpsSample";
Content = new StackLayout
{
Padding = new Thickness(8),
VerticalOptions = LayoutOptions.FillAndExpand,
Children =
{
getGeoButton,
new StackLayout
{
Orientation = StackOrientation.Horizontal,
Children =
{
LatLabel,
LonLabel,
}
},
AddrLabel,
map
}
};
}