联系 picker.cs
using System;
using Xamarin.Forms;
namespace contact_picker
{
public class App : Application
{
public App ()
{
// The root page of your application
MainPage = new MyPage();
}
protected override void OnStart ()
{
// Handle when your app starts
}
protected override void OnSleep ()
{
// Handle when your app sleeps
}
protected override void OnResume ()
{
// Handle when your app resumes
}
}
}