using System;

 using System.Collections.Generic;

 using System.IO;

 using System.Linq;

 using System.Runtime.InteropServices.WindowsRuntime;

 using Windows.Foundation;

 using Windows.Foundation.Collections;

 using Windows.UI.Xaml;

 using Windows.UI.Xaml.Controls;

 using Windows.UI.Xaml.Controls.Primitives;

 using Windows.UI.Xaml.Data;

 using Windows.UI.Xaml.Input;

 using Windows.UI.Xaml.Media;

 using Windows.UI.Xaml.Navigation;

 using Windows.Devices.Geolocation;

 // “空白页”项模板在 http://go.microsoft.com/fwlink/?LinkId=391641 上有介绍

 namespace Weather

 {

     /// <summary>

     /// 可用于自身或导航至 Frame 内部的空白页。

     /// </summary>

     public sealed partial class MainPage : Page

     {

         public MainPage()

         {

             this.InitializeComponent();

             this.NavigationCacheMode = NavigationCacheMode.Required;

         }

         /// <summary>

         /// 在此页将要在 Frame 中显示时进行调用。

         /// </summary>

         /// <param name="e">描述如何访问此页的事件数据。

         /// 此参数通常用于配置页。</param>

         protected override async void OnNavigatedTo(NavigationEventArgs e)

         {

             //获取手机所在位置

             var geolocator = new Geolocator();

             var geoPosition = await geolocator.GetGeopositionAsync();

             //当前手机所在经纬度位置

             var position = geoPosition.Coordinate.Point.Position;

             txtLocation.Text = string.Format("经度：{0}；纬度：{1}", position.Longitude, position.Latitude);

         }

     }

 }