排列3玩法:??Windows Phone 环境中模??GPS 位置信息

来源：本网整理

//www.eugenedotnet.com/2011/11/simulating-gps-position-changes-using-reactive-extensions-in-windows-phone-environment/ scrolltotop.offset(100,120); scrolltotop.init();

[1].[代码] [WPF/SliverLight]代码跳至 [1]

 河北20选五开奖结果 www.vhmyd.cn private readonly GeoCoordinateWatcher _gcw = new GeoCoordinateWatcher();
 
private readonly Random _random = new Random();
 
public GpsSamplePage()
{
    InitializeComponent();
 
    bool isSimulation = true;
    if (!isSimulation)
    {
        _gcw.PositionChanged += (s, e) => GcwPositionChanged(e);
        _gcw.Start();
    }
    else
    {
        Observable.Timer(TimeSpan.FromSeconds(0), TimeSpan.FromSeconds(4))
        .Select(x =>
            new GeoPositionChangedEventArgs<GeoCoordinate>(
                new GeoPosition<GeoCoordinate>(DateTime.Now,
                    new GeoCoordinate()
                        {
                            // -90 <= latitude <= 90
                            Latitude = (_random.NextDouble() * 180.0) - 90.0,
                            // -180 <= longitude <= 180
                            Longitude = (_random.NextDouble() * 360.0) - 180.0
                        }
 
                ))).ObserveOnDispatcher().Subscribe(GcwPositionChanged);
    }
}
 
void GcwPositionChanged(GeoPositionChangedEventArgs<GeoCoordinate> e)
{
    Dispatcher.BeginInvoke(() =>
    {
        // thread safe
        tbLatitude.Text = e.Position.Location.Latitude.ToString();
        tbLongitude.Text = e.Position.Location.Longitude.ToString();
    });
}

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