public void Converter(BaiduMaps.Map map, double lat, double lng)
{
try
{
//初始化坐标转换工具类，指定源坐标类型和坐标数据
CoordinateConverter converter = new CoordinateConverter()
.From(CoordinateConverter.CoordType.Gps)
.Coord(new Com.Baidu.Mapapi.Model.LatLng(lat, lng));
//desLatLng 转换后的坐标
var lct = converter.Convert();
if (map != null && lct != null)
{
if (lct.Latitude > 0 && lct.Longitude > 0)
{
map.Center = new Coordinate(lct.Latitude, lct.Longitude);
map.SendStatusChanged(lct.Latitude, lct.Longitude);
}
}
if (lct != null && lct.Latitude > 0 && lct.Longitude > 0)
{
GlobalSettings.UpdatePoi(lct.Latitude, lct.Longitude);
}
}
catch (Exception) { }
}
public async Task UpdateCenter(BaiduMaps.Map map)
{
try
{
var locationManager = (LocationManager)MainActivity.Instance.GetSystemService(Context.LocationService);
//判断GPS是否开启，没有开启，则开启
if (!locationManager.IsProviderEnabled(LocationManager.GpsProvider))
{
var toast = Toast.MakeText(Android.App.Application.Context, "你的位置服务没有开启，请打开GPS", ToastLength.Short);
toast.SetGravity(GravityFlags.Center, 0, 0);
toast.Show();
}
else
{
var locp = await Permissions.RequestAsync <Permissions.LocationWhenInUse>();
if (locp != PermissionStatus.Granted)
{
var toast = Toast.MakeText(Android.App.Application.Context, "你的位置服务没有开启，请打开GPS", ToastLength.Short);
toast.SetGravity(GravityFlags.Center, 0, 0);
toast.Show();
}
else
{
var request = new GeolocationRequest(GeolocationAccuracy.Best, TimeSpan.FromSeconds(2));
var location = await Geolocation.GetLocationAsync(request, Cts.Token);
if (location != null)
{
Converter(map, location.Latitude, location.Longitude);
}
}
}
}
catch (FeatureNotEnabledException)
{
Cts.Token.ThrowIfCancellationRequested();
Cts.Cancel();
}
catch (FeatureNotSupportedException)
{
Cts.Token.ThrowIfCancellationRequested();
Cts.Cancel();
}
catch (PermissionException)
{
Cts.Token.ThrowIfCancellationRequested();
Cts.Cancel();
}
catch (Exception)
{
Cts.Token.ThrowIfCancellationRequested();
Cts.Cancel();
}
}
public async Task UpdateCenter(BaiduMaps.Map map, Action action)
{
await UpdateCenter(map);
action?.Invoke();
}
