private async Task InitLocation()
{
tbLocationStatus.Text = "定位中...";
KeyValuePair <GeolocationAccessStatus, string> addressPair = await location.GetLoacationAsync();
if (addressPair.Key == GeolocationAccessStatus.Allowed)
{
tbLocationStatus.Text = addressPair.Value;
}
else if (addressPair.Key == GeolocationAccessStatus.Denied)
{
tbLocationStatus.Text = "最远的距离就是:我不知道你身在何处。修改定位选项：";
}
else if (addressPair.Key == GeolocationAccessStatus.Unspecified)
{
tbLocationStatus.Text = "我对你的定位出了一丢丢的问题~";
}
}
