<?xml version="1.0" encoding="utf-8" ?>

<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"

             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"

             xmlns:local="clr-namespace:App30"

             x:Class="App30.MainPage">

    <StackLayout>

    <ListView x:Name="myListView" ItemSelected="myListView_ItemSelected" ItemTapped="myListView_ItemTapped"

              Refreshing="myListView_Refreshing"></ListView>

        <Button Text="Refresh" Clicked="Button_Clicked"></Button>

    </StackLayout>

</ContentPage>

 

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using Xamarin.Forms;

namespace App30

{

 public partial class MainPage : ContentPage

 {

  public MainPage()

  {

   InitializeComponent();

            myListView.ItemsSource = new string[]

            {

                "zhangsan","lisi","wangwu","zhaoliu"

            };

           

myListView.IsPullToRefreshEnabled = true;

  }

        private void myListView_ItemSelected(object sender, SelectedItemChangedEventArgs e)

        {

            //DisplayAlert("你选择了", e.SelectedItem.ToString(), "Ok");

        }

        private void myListView_ItemTapped(object sender, ItemTappedEventArgs e)

        {

            DisplayAlert("你选择了", e.Item.ToString(), "Ok");

        }

     

   private void myListView_Refreshing(object sender, EventArgs e)

        {

            myListView.ItemsSource = new string[]

           {

                "abc","123","hij","888"

           };

            myListView.EndRefresh();

        }

        private void Button_Clicked(object sender, EventArgs e)

        {

            myListView.BeginRefresh();

        }

    }

}