我尝试制作一个简单的天气应用,但我得到了一个例外。 我已激活位置。我尝试在模拟器中运行手机,而不是工作 the exception
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;
namespace TryToMakeWeatherApp
{
/// <summary>
/// An empty page that can be used on its own or navigated to within a Frame.
/// </summary>
public sealed partial class MainPage : Page
{
public MainPage()
{
this.InitializeComponent();
}
private async void Button_Click(object sender, RoutedEventArgs e)
{
var pos = await LocationManage.GetLocation(); //Here i'm geting the error
var lat = pos.Coordinate.Latitude;
var lon = pos.Coordinate.Longitude;
var weather = WeatherMap.GetWeather(lat, lon).ToString();
WeatherTxt.Text = weather;
}
}
}
这是MainPage的代码。 这是LocationManage类
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Windows.Devices.Geolocation;
namespace TryToMakeWeatherApp
{
class LocationManage
{
public async static Task<Geoposition> GetLocation()
{
var accessStatus = await Geolocator.RequestAccessAsync();
var geolocator = new Geolocator { DesiredAccuracyInMeters = 0 };
var position = await geolocator.GetGeopositionAsync();
return position;
}
}
}
答案 0 :(得分:2)
也必须打开这个功能