protected async override void OnAppearing()
{
base.OnAppearing();
PM25DataService service = new PM25DataService();
var result = await service.GetDataFromOpenDataAsync();
this.Pm25ItemsList.ItemsSource = result
.FindAll(x => decimal.Parse(x.PM25) >= decimal.Parse("7")).ToList();
}
protected async override void OnAppearing()
{
base.OnAppearing();
if (!CrossConnectivity.Current.IsConnected)
{
//You are offline, notify the user
DisplayAlert("Error", "無網路服務", "OK");
return;
}
PM25DataService service = new PM25DataService();
this.Pm25ItemsList.ItemsSource = await service.GetDataFromOpenDataAsync();
}