背景：我深谙WPF / XAML，但新的Windows Phone 8

希望也只是一些愚蠢的事，我很想念......

我想DesiredAccuracy要高，但我也想挂接到PositionChanged事件。

在跌破code到达_GeoLocator.DesiredAccuracy = PositionAccuracy.High;它抛出一个异常中止。如果它关闭，一切正常，但我真的希望，精度高。

看来两者是相互排斥彼此的。

错误消息是：操作终止（从HRESULT异常：0x80004004（E_ABORT））。我有定位功能启用。

对违规code例：

  MainPage的公（）
    {
        的InitializeComponent（）;

        _GeoLocator.MovementThreshold = 1;

        _GeoLocator.PositionChanged + =（Geolocator发件人，PositionChangedEventArgs参数）=＆GT;
        {
            // UpdateLocation（参数）;
            Console.WriteLine（位置改变）;
        };

        //这将抛出...为什么？如果我评论关闭POSITIONCHANGED以上，它工作正常。
        _GeoLocator.DesiredAccuracy = PositionAccuracy.High;
    }
 

解决方案

您必须设置DesiredAccuracyPositionChanged事件处理程序之前（类似的问题）。

  _GeoLocator.MovementThreshold = 1;
_GeoLocator.DesiredAccuracy = PositionAccuracy.High;
_GeoLocator.PositionChanged + =（Geolocator发件人，PositionChangedEventArgs参数）=＆GT;
    {
        // UpdateLocation（参数）;
        Console.WriteLine（位置改变）;
    };
 

background: I'm well versed in WPF/XAML, but new to Windows Phone 8.

Hopefully there is just something stupid that I'm missing...

I want DesiredAccuracy to be high, but I also want to hook into the PositionChanged event.

When the below code reaches _GeoLocator.DesiredAccuracy = PositionAccuracy.High; it throws an abort. If it off, everything works but I really want high accuracy.

It seems the two are mutually exclusive of one another.

Error message is: Operation aborted (Exception from HRESULT: 0x80004004 (E_ABORT)). I have Location capabilities enabled.

Example of offending code:

    public MainPage()
    {
        InitializeComponent();

        _GeoLocator.MovementThreshold = 1;

        _GeoLocator.PositionChanged += (Geolocator sender, PositionChangedEventArgs args) =>
        {
            //UpdateLocation(args);
            Console.WriteLine("Position Changed");
        };

        //THIS WILL THROW...WHY??   IF I COMMENT OFF POSITIONCHANGED ABOVE, IT WORKS FINE.
        _GeoLocator.DesiredAccuracy = PositionAccuracy.High;
    }

You have to set "DesiredAccuracy" before "PositionChanged" event handler (Similar question).

_GeoLocator.MovementThreshold = 1;
_GeoLocator.DesiredAccuracy = PositionAccuracy.High;
_GeoLocator.PositionChanged += (Geolocator sender, PositionChangedEventArgs args) =>
    {
        //UpdateLocation(args);
        Console.WriteLine("Position Changed");
    };