我不是经验丰富的开发人员。我只是编程的新手。
我已设法通过此URL http://samples.openweathermap.org/data/2.5/weather?lat=7.0744&lon=79.8919&appid=a7cae8ecfab2535dec05a83525f5ac7a
将当前天气信息发送到我的应用程序
但我不知道如何从此openweathermap网址http://samples.openweathermap.org/data/2.5/forecast?lat=7.0744&lon=79.8919&appid=a7cae8ecfab2535dec05a83525f5ac7a
获取5天天气预报数据
这是我创建的Weatherforecast类
class WeatherForecast
{
public async static Task<RootObject> GetWeatherForecast(double lat,double lon)
{
var httpn = new HttpClient();
var uri = String.Format("http://samples.openweathermap.org/data/2.5/forecast?lat={0}&lon={1}&appid=a7cae8ecfab2535dec05a83525f5ac7a", lat, lon);
var response = await httpn.GetAsync(uri);
var result = await response.Content.ReadAsStringAsync();
var data = JsonConvert.DeserializeObject<RootObject>(result);
return data;
}
}
public class Main
{
public double temp { get; set; }
public double temp_min { get; set; }
public double temp_max { get; set; }
public double pressure { get; set; }
public double sea_level { get; set; }
public double grnd_level { get; set; }
public int humidity { get; set; }
public int temp_kf { get; set; }
}
public class Weather
{
public int id { get; set; }
public string main { get; set; }
public string description { get; set; }
public string icon { get; set; }
}
public class Clouds
{
public int all { get; set; }
}
public class Wind
{
public double speed { get; set; }
public double deg { get; set; }
}
public class Rain
{
}
public class Sys
{
public string pod { get; set; }
}
public class List
{
public int dt { get; set; }
public Main main { get; set; }
public List<Weather> weather { get; set; }
public Clouds clouds { get; set; }
public Wind wind { get; set; }
public Rain rain { get; set; }
public Sys sys { get; set; }
public string dt_txt { get; set; }
}
public class Coord
{
public double lat { get; set; }
public double lon { get; set; }
}
public class City
{
public int id { get; set; }
public string name { get; set; }
public Coord coord { get; set; }
public string country { get; set; }
}
public class RootObject
{
public string cod { get; set; }
public double message { get; set; }
public int cnt { get; set; }
public List<List> list { get; set; }
public City city { get; set; }
}
`
这是getweatherforcast按钮的click事件(我添加了一个按钮来进行预测)
private async void ForecastButton_Click(object sender, RoutedEventArgs e)
{
var position1 = await LocationManager.GetPosition();
var latitude1 = position1.Coordinate.Latitude;
var longitude1 = position1.Coordinate.Longitude;
UWPWeatherforMobileForeCast.RootObject forecast = await WeatherForecast.GetWeatherForecast(latitude1, longitude1);
}
这是我要绑定数据的Gridview
<GridView x:Name="ForecastGridView" >
<GridView.ItemTemplate>
<DataTemplate >
<StackPanel>
<TextBlock Name="forecastdatetextblock"/>
<TextBlock Name="forecasttemptextblock" />
<TextBlock Name="forecastdescriptiontextblock"/>
</StackPanel>
</DataTemplate>
</GridView.ItemTemplate>
</GridView>
如何将5天预测日期,温度和描述绑定到此表格视图。我应该使用哪种项目源和数据类型?
This is a screenshot of my app
对于我的教育而言,这是一个非常简单的应用程序。我想将日期,温度,描述绑定到我绘制的那个区域的gridview上。
ps。这是我的第一个stackoverflow问题,如果有任何错误,请原谅我
最佳答案
如何将5天预测日期,温度和描述绑定到此表格视图。我应该使用哪种项目源和数据类型?
在按钮单击事件中获得RootObject
对象之后,应该对数据进行操作以获取五天的天气并将其显示在UI上。这是将5天天气绑定到UI的简单示例代码,您可以参考。 (单击按钮以获取5天是否显示数据并显示它们)
这是xaml
<StackPanel Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
<Button Content="get whether" Click="Button_Click"/>
<GridView ItemsSource="{Binding collection}" x:Name="ForecastGridView">
<GridView.ItemTemplate>
<DataTemplate >
<StackPanel>
<TextBlock Name="forecastdatetextblock" Text="{Binding dt}"/>
<TextBlock Name="forecasttemptextblock" Text="{Binding main.temp}" />
<TextBlock Name="forecastdescriptiontextblock" Text="{Binding weather[0].description}"/>
</StackPanel>
</DataTemplate>
</GridView.ItemTemplate>
</GridView>
</StackPanel>
这是背后的代码
public MainPage()
{
this.InitializeComponent();
collection = new ObservableCollection<List>();
this.DataContext = this;
}
public ObservableCollection<List> collection { get; set; }
private async void Button_Click(object sender, RoutedEventArgs e)
{
var position1 = await LocationManager.GetPosition();
var latitude1 = position1.Coordinate.Latitude;
var longitude1 = position1.Coordinate.Longitude;
RootObject forecast = await WeatherForecast.GetWeatherForecast(latitude1, longitude1);
for (int i = 0; i < 5; i++)
{
collection.Add(forecast.list[i]);
}
ForecastGridView.ItemsSource = collection;
}
关于c# - 如何从openweathermap获取5天天气预报到我的uwp应用,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/47589249/