<Pagex:Class="XamlDemo.Picker.MyContactPicker"xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"xmlns:local="using:XamlDemo.Picker"xmlns:d="http://schemas.microsoft.com/expression/blend/2008"xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"mc:Ignorable="d"><Grid Background="Transparent"><StackPanel Margin="120 0 0 0"><TextBlock Name="lblMsg" FontSize="14.667" /><Button Name="btnAddContract" Content="增加一个联系人" Click="btnAddContract_Click" Margin="0 10 0 0" /></StackPanel></Grid>
</Page>

/** 演示如何开发自定义的联系人选取器* * 1、在 Package.appxmanifest 中新增一个“联系人选取器”声明，并做相关配置* 2、在 App.xaml.cs 中 override void OnActivated(IActivatedEventArgs args)，以获取联系人选取器的相关信息* * ContactPickerActivatedEventArgs - 通过“联系人选取器”激活应用程序时的事件参数*     ContactPickerUI - 获取 ContactPickerUI 对象*     PreviousExecutionState, Kind, SplashScreen - 各种激活 app 的方式的事件参数基本上都有这些属性，就不多说了* * ContactPickerUI - 自定义联系人选取器的帮助类*     SelectionMode - 获取由 ContactPicker（调用者）设置的 SelectionMode 属性*     DesiredFields - 获取由 ContactPicker（调用者）设置的 DesiredFields 属性*     AddContact(string id, Contact contact) - 选取一个联系人*         id - 联系人标识*         contact - 一个 Contact 对象*     RemoveContact() - 删除指定标识的联系人*     ContainsContact() - 指定标识的联系人是否已被选取*     ContactRemoved - 移除一个已被选取的联系人时所触发的事件*     * Contact - 返回给调用者的联系人对象*     Name - 名称*     Thumbnail - 缩略图*     Fields - 联系人的字段数据，每一条数据都是一个实现了 IContactField 接口的对象*     * ContactField - 实现了 IContactField 接口，用于描述联系人的某一个字段数据*     Type - 字段类型（ContactFieldType 枚举）*         Email, PhoneNumber, Location, InstantMessage, Custom*     Category - 字段类别（ContactFieldCategory 枚举）*         None, Home, Work, Mobile, Other*     Value - 字段的值*/using System;
using Windows.ApplicationModel.Activation;
using Windows.ApplicationModel.Contacts.Provider;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Navigation;
using Windows.ApplicationModel.Contacts;
using Windows.Storage.Streams;
using Windows.UI.Core;namespace XamlDemo.Picker
{public sealed partial class MyContactPicker : Page{private ContactPickerUI _contactPickerUI;public MyContactPicker(){this.InitializeComponent();}protected override void OnNavigatedTo(NavigationEventArgs e){// 获取 ContactPickerUI 对象var contactPickerActivated = e.Parameter as ContactPickerActivatedEventArgs;_contactPickerUI = contactPickerActivated.ContactPickerUI;_contactPickerUI.ContactRemoved += _contactPickerUI_ContactRemoved;   }protected override void OnNavigatedFrom(NavigationEventArgs e){_contactPickerUI.ContactRemoved -= _contactPickerUI_ContactRemoved;}// 从选取缓冲区移除后async void _contactPickerUI_ContactRemoved(ContactPickerUI sender, ContactRemovedEventArgs args){// 注意：无法直接得知 ContactPickerUI 是单选模式还是多选模式，需要判断当添加了一个联系人后，再添加一个联系人，如果系统会自动移除前一个联系人，则说明是单选模式await this.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>{lblMsg.Text += "removed contact: " + args.Id;lblMsg.Text += Environment.NewLine;});}private void btnAddContract_Click(object sender, RoutedEventArgs e){Random random = new Random();// 构造一个 Contact 对象Contact contact = new Contact();contact.Name = "webabcd " + random.Next(1000, 10000).ToString();contact.Fields.Add(new ContactField(random.Next(1000, 10000).ToString(), ContactFieldType.Email, ContactFieldCategory.Home));contact.Fields.Add(new ContactField(random.Next(1000, 10000).ToString(), ContactFieldType.Email, ContactFieldCategory.Work));contact.Fields.Add(new ContactField(random.Next(1000, 10000).ToString(), ContactFieldType.PhoneNumber, ContactFieldCategory.Home));contact.Fields.Add(new ContactField(random.Next(1000, 10000).ToString(), ContactFieldType.PhoneNumber, ContactFieldCategory.Work));contact.Thumbnail = RandomAccessStreamReference.CreateFromUri(new Uri("ms-appx:///Assets/Logo.png", UriKind.Absolute));string id = Guid.NewGuid().ToString();// 向选取缓冲区新增一个联系人switch (_contactPickerUI.AddContact(id, contact)){case AddContactResult.Added: // 已被成功添加lblMsg.Text += "added contact: " + id;lblMsg.Text += Environment.NewLine;break;case AddContactResult.AlreadyAdded: // 选取缓冲区已有此联系人lblMsg.Text += "already added contact: " + id;lblMsg.Text += Environment.NewLine;break;case AddContactResult.Unavailable: // 无效联系人lblMsg.Text += "unavailable contact: " + id;lblMsg.Text += Environment.NewLine;break;}}}
}

protected override void OnActivated(IActivatedEventArgs args)
{// 通过联系人选取器激活应用程序时if (args.Kind == ActivationKind.ContactPicker){ContactPickerActivatedEventArgs contactPickerArgs = args as ContactPickerActivatedEventArgs;Frame rootFrame = new Frame();rootFrame.Navigate(typeof(MainPage), contactPickerArgs);Window.Current.Content = rootFrame;Window.Current.Activate();}
}

<Pagex:Class="XamlDemo.Picker.ContactPickerDemo"xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"xmlns:local="using:XamlDemo.Picker"xmlns:d="http://schemas.microsoft.com/expression/blend/2008"xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"mc:Ignorable="d"><Grid Background="Transparent"><StackPanel Margin="120 0 0 0"><TextBlock Name="lblMsg" FontSize="14.667" /><Image Name="imgThumbnail" Width="100" Height="100" HorizontalAlignment="Left" Margin="0 10 0 0"  /><Button Name="btnPickContact" Content="pick a contact" Click="btnPickContact_Click" Margin="0 10 0 0" /><Button Name="btnPickContacts" Content="pick multiple contacts" Click="btnPickContacts_Click" Margin="0 10 0 0" /></StackPanel></Grid>
</Page>

/** 演示如何通过 ContactPicker 选择一个或多个联系人* * ContactPicker - 联系人选择窗口*     CommitButtonText - 联系人选择窗口的确定按钮的显示文本，此按钮默认显示的文本为“确定”*     SelectionMode - 选取模式（ContactSelectionMode 枚举）*         Contacts - 请对我提供联系人的全部字段的数据，默认值*         Fields - 请对我提供指定字段的数据*     DesiredFields - 当 SelectionMode.Fields 时，请对我提供指定字段的数据，字段名称来自 KnownContactField 枚举*     PickSingleContactAsync() - 选取一个联系人，返回 ContactInformation 对象*     PickMultipleContactsAsync() - 选取多个联系人，返回 ContactInformation 对象集合*     * ContactInformation - 联系人信息对象*     Name, Emails, PhoneNumbers, Locations, InstantMessages, CustomFields*     GetThumbnailAsync() - 获取联系人缩略图*/using System;
using System.Collections.Generic;
using System.Linq;
using Windows.ApplicationModel.Contacts;
using Windows.Storage.Streams;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Media.Imaging;
using XamlDemo.Common;namespace XamlDemo.Picker
{public sealed partial class ContactPickerDemo : Page{public ContactPickerDemo(){this.InitializeComponent();}private async void btnPickContact_Click(object sender, RoutedEventArgs e){if (Helper.EnsureUnsnapped()){ContactPicker contactPicker = new ContactPicker();contactPicker.CommitButtonText = "确定";contactPicker.SelectionMode = ContactSelectionMode.Contacts;// 启动联系人选取器，以选择一个联系人ContactInformation contact = await contactPicker.PickSingleContactAsync();if (contact != null){lblMsg.Text = "name: " + contact.Name;lblMsg.Text += Environment.NewLine;lblMsg.Text += "emails: " + string.Join(",", contact.Emails.Select(p => new { email = p.Value }));lblMsg.Text += Environment.NewLine;lblMsg.Text += "phoneNumbers: " + string.Join(",", contact.PhoneNumbers.Select(p => new { phoneNumber = p.Value }));IRandomAccessStreamWithContentType stream = await contact.GetThumbnailAsync();if (stream != null && stream.Size > 0){BitmapImage bitmap = new BitmapImage();bitmap.SetSource(stream);imgThumbnail.Source = bitmap;}}else{lblMsg.Text = "取消了";}}}private async void btnPickContacts_Click(object sender, RoutedEventArgs e){if (Helper.EnsureUnsnapped()){var contactPicker = new ContactPicker();// 启动联系人选取器，以选择多个联系人IReadOnlyList<ContactInformation> contacts = await contactPicker.PickMultipleContactsAsync();if (contacts != null && contacts.Count > 0){ContactInformation contact = contacts[0];lblMsg.Text = "contacts count: " + contacts.Count.ToString();lblMsg.Text += Environment.NewLine;lblMsg.Text += "first contact name: " + contact.Name;lblMsg.Text += Environment.NewLine;lblMsg.Text += "first contact emails: " + string.Join(",", contact.Emails.Select(p => new { email = p.Value }));lblMsg.Text += Environment.NewLine;lblMsg.Text += "first contact phoneNumbers: " + string.Join(",", contact.PhoneNumbers.Select(p => new { phoneNumber = p.Value }));IRandomAccessStreamWithContentType stream = await contact.GetThumbnailAsync();if (stream != null && stream.Size > 0){BitmapImage bitmap = new BitmapImage();bitmap.SetSource(stream);imgThumbnail.Source = bitmap;}}else{lblMsg.Text = "取消了";}}}}
}