Windows Phone开发（24）：启动器与选择器之发送短信

本文主要是介绍Windows Phone开发（24）：启动器与选择器之发送短信，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

本节我们通过一个简单的发送短信示例来演示一下如果配合使用PhoneNumberChooserTask和SmsComposeTask类。

PhoneNumberChooserTask是选择器，它用于从你的电话簿里选择你要发送短信的电话号码；

SmsComposeTask就是用来启动发送短信组件并显示发送窗口。

注意，这些操作都在用户的操控之中，发送短信一定会显示可视化页面的，而且不会偷偷地在后台发送，因为Windows phone是以用户体验和安全为原则的，后台发送是不允许的，而且发送过程是由用户控制的，你可以选择取消或退出。

SmsComposeTask类的To属性就是目标电话号码，Body就是你要发送的短信的正文。

同样，你会很轻松地就完成这个任务，不信，看看代码吧。

<phone:PhoneApplicationPage x:Class="SMSSample.MainPage"xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"xmlns:phone="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone"xmlns:shell="clr-namespace:Microsoft.Phone.Shell;assembly=Microsoft.Phone"xmlns:d="http://schemas.microsoft.com/expression/blend/2008"xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"mc:Ignorable="d" d:DesignWidth="480" d:DesignHeight="768"FontFamily="{StaticResource PhoneFontFamilyNormal}"FontSize="{StaticResource PhoneFontSizeNormal}"Foreground="{StaticResource PhoneForegroundBrush}"SupportedOrientations="Portrait" Orientation="Portrait"shell:SystemTray.IsVisible="True"><!--LayoutRoot 是包含所有页面内容的根网格--><Grid x:Name="LayoutRoot" Background="Transparent"><Grid.RowDefinitions><RowDefinition Height="Auto"/><RowDefinition Height="*"/></Grid.RowDefinitions><!--TitlePanel 包含应用程序的名称和页标题--><StackPanel x:Name="TitlePanel" Grid.Row="0" Margin="12,17,0,28"><TextBlock x:Name="ApplicationTitle" Text="我的应用程序" Style="{StaticResource PhoneTextNormalStyle}"/><TextBlock x:Name="PageTitle" Text="发送短信" Margin="9,-7,0,0" Style="{StaticResource PhoneTextTitle1Style}"/></StackPanel><!--ContentPanel - 在此处放置其他内容--><Grid x:Name="ContentPanel" Grid.Row="1" Margin="12,0,12,0"><TextBlock Height="40" HorizontalAlignment="Left" Margin="33,69,0,0" Name="textBlock1" Text="接收者：" VerticalAlignment="Top" FontSize="30" Width="144" /><TextBox Height="72" HorizontalAlignment="Left" Margin="12,116,0,0" Name="txtPhoneNumber" Text="" VerticalAlignment="Top" Width="418" ><TextBox.InputScope><InputScope><InputScopeName NameValue="Number"/></InputScope></TextBox.InputScope></TextBox><TextBlock FontSize="30" Height="40" HorizontalAlignment="Left" Margin="33,235,0,0" Name="textBlock2" Text="短信内容：" VerticalAlignment="Top" Width="213" /><TextBox Height="233" HorizontalAlignment="Left" Margin="12,283,0,0" Name="txtMessage" Text="" VerticalAlignment="Top" Width="418" TextWrapping="Wrap" /><Button Content="发送" Height="79" HorizontalAlignment="Left" Margin="48,522,0,0" Name="btnSend" VerticalAlignment="Top" Width="357" Click="btnSend_Click" /><Button Content="选择电话号码" Height="72" HorizontalAlignment="Left" Margin="185,45,0,0" Name="btnChoose" VerticalAlignment="Top" Width="220" Click="btnChoose_Click" /></Grid></Grid></phone:PhoneApplicationPage>

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using Microsoft.Phone.Controls;using Microsoft.Phone.Tasks;namespace SMSSample
{public partial class MainPage : PhoneApplicationPage{PhoneNumberChooserTask myChooser = new PhoneNumberChooserTask();SmsComposeTask SMS = null;// 构造函数public MainPage(){InitializeComponent();// 实例化SMS = new SmsComposeTask();// 注册回调事件myChooser.Completed += (sender, e) => {if (e.TaskResult== TaskResult.OK){Dispatcher.BeginInvoke(() => { this.txtPhoneNumber.Text = e.PhoneNumber; });}};}// 选择联系人private void btnChoose_Click(object sender, RoutedEventArgs e){if (myChooser == null){myChooser = new PhoneNumberChooserTask();}myChooser.Show();}// 发送private void btnSend_Click(object sender, RoutedEventArgs e){if (txtPhoneNumber.Text == "" || txtMessage.Text == ""){MessageBox.Show("接收号码和短信内容不能为空。");return;}if (SMS == null){SMS = new SmsComposeTask();}// 赋值SMS.To = txtPhoneNumber.Text;SMS.Body = txtMessage.Text;try{SMS.Show();}catch (Exception ex){MessageBox.Show(ex.Message);}}}
}