using System; using System.Threading.Tasks; using Xamarin.Forms; using Xamarin.Forms.Xaml; namespace MobileApp1.Views { [XamlCompilation(XamlCompilationOptions.Compile)] public partial class HomePage : ContentPage { public HomePage() { InitializeComponent(); } private async void button1_Clicked(object sender, EventArgs e) { await Task.Run(() => { ContentPageHelper.SetDetailPage(this, typeof(MyFoldersPage)); }); } } }