与众不同 windows phone (28) Feature（特性）之手机方向, 本地化, 应用程序的试用体验, 系统主题资源, 本地数据的加密解密

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与众不同 windows phone (28) - Feature（特性）之手机方向, 本地化, 应用程序的试用体验, 系统主题资源, 本地数据的加密解密

作者：webabcd


介绍
与众不同 windows phone 7.5 (sdk 7.1) 之特性

• 手机方向
• 本地化
• 应用程序的试用体验
• 系统主题资源
• 本地数据的加密解密

示例
1、演示如何响应手机的方向变化
Orientation.xaml

<phone:PhoneApplicationPage 
    x:Class="Demo.Feature.Orientation"
    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"
    FontFamily="{StaticResource PhoneFontFamilyNormal}"
    FontSize="{StaticResource PhoneFontSizeNormal}"
    Foreground="{StaticResource PhoneForegroundBrush}"
    SupportedOrientations="Portrait" Orientation="Portrait"
    mc:Ignorable="d" d:DesignHeight="768" d:DesignWidth="480"
    shell:SystemTray.IsVisible="True">

    <Grid x:Name="LayoutRoot" Background="Transparent">
    
        <TextBlock Text="改变手机方向，以查看演示效果" />
        
    </Grid>

</phone:PhoneApplicationPage>

Orientation.xaml.cs

/*
 * 演示如何捕获手机方向改变的事件 
 * 
 * PhoneApplicationPage - 页面
 *     SupportedOrientations - 支持的方向（Microsoft.Phone.Controls.SupportedPageOrientation 枚举）
 *         Portrait（竖）, Landscape（横）, PortraitOrLandscape（横竖）
 *     Orientation - 当前的方向（Microsoft.Phone.Controls.PageOrientation 枚举）
 *         None, Portrait, Landscape, PortraitUp, PortraitDown（目前不支持）, LandscapeLeft（PortraitUp 逆时针转到 Landscape）, LandscapeRight（PortraitUp 顺时针转到 Landscape）
 *     OrientationChanged - 方向改变后触发的事件（事件参数：OrientationChangedEventArgs）
 *     
 * OrientationChangedEventArgs
 *     Orientation - 当前的页面方向
 */

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;

namespace Demo.Feature
{
    public partial class Orientation : PhoneApplicationPage
    {
        public Orientation()
        {
            InitializeComponent();

            this.SupportedOrientations = SupportedPageOrientation.PortraitOrLandscape;
            this.OrientationChanged += new EventHandler<OrientationChangedEventArgs>(Orientation_OrientationChanged);
        }

        void Orientation_OrientationChanged(object sender, OrientationChangedEventArgs e)
        {
            if ((e.Orientation & PageOrientation.Portrait) == (PageOrientation.Portrait))
            {
                MessageBox.Show("竖放");
            }
            else
            {
                MessageBox.Show("横放");
            }
        }
    }
}

2、演示如何实现程序的本地化
Localization.xaml

<phone:PhoneApplicationPage 
    x:Class="Demo.Feature.Localization"
    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"
    FontFamily="{StaticResource PhoneFontFamilyNormal}"
    FontSize="{StaticResource PhoneFontSizeNormal}"
    Foreground="{StaticResource PhoneForegroundBrush}"
    SupportedOrientations="Portrait" Orientation="Portrait"
    mc:Ignorable="d" d:DesignHeight="768" d:DesignWidth="480"
    shell:SystemTray.IsVisible="True">

    <phone:PhoneApplicationPage.Resources>
        <!--
            注：AppResources 里的类和构造函数需要 public 的要手动改成 public
        -->
        <resources:AppResources xmlns:resources="clr-namespace:Demo.Resources" x:Key="MyLocalization" />
    </phone:PhoneApplicationPage.Resources>
    
    <Grid x:Name="LayoutRoot" Background="Transparent">
        <StackPanel Orientation="Vertical">

            <TextBlock Name="lblMsg" />

            <!--
                xaml 方式应用本地化
            -->
            <TextBlock Text="{Binding Path=Software, Source={StaticResource MyLocalization}}" />

        </StackPanel>
    </Grid>

</phone:PhoneApplicationPage>

Localization.xaml.cs

/*
 * 演示如何本地化应用程序，相关资源文件在 Resources 目录下
 * 
 * 注：本地化应用程序标题（标题分为两种：应用程序列表中的标题和“磁贴”上的应用程序标题，它们可以不同）请参看 http://msdn.microsoft.com/en-us/library/ff967550(v=vs.92).aspx
 */

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 Demo.Resources;

namespace Demo.Feature
{
    public partial class Localization : PhoneApplicationPage
    {
        public Localization()
        {
            InitializeComponent();

            // 代码方式应用本地化
            lblMsg.Text = AppResources.Network;
        }
    }
}

3、演示如何提供支持试用体验的应用程序
TrialExperience.xaml

<phone:PhoneApplicationPage 
    x:Class="Demo.Feature.TrialExperience"
    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"
    FontFamily="{StaticResource PhoneFontFamilyNormal}"
    FontSize="{StaticResource PhoneFontSizeNormal}"
    Foreground="{StaticResource PhoneForegroundBrush}"
    SupportedOrientations="Portrait" Orientation="Portrait"
    mc:Ignorable="d" d:DesignHeight="768" d:DesignWidth="480"
    shell:SystemTray.IsVisible="True">

    <Grid x:Name="LayoutRoot" Background="Transparent">
        <StackPanel Orientation="Vertical">
            
            <Button Name="btnTrial" Content="试用版可用的功能" Click="btnTrial_Click" />

            <Button Name="btnNormal" Content="正式版里才有的功能" Click="btnNormal_Click" />

            <Button Name="btnBuy" Content="购买正式版" Click="btnBuy_Click" />

        </StackPanel>
    </Grid>

</phone:PhoneApplicationPage>

TrialExperience.xaml.cs

/*
 * 演示如何在收费应用程序中加入试用体验
 * 
 * LicenseInformation - 应用程序的许可证信息
 *     IsTrial() - 是否是试用版
 */

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.Marketplace;
using Microsoft.Phone.Tasks;

namespace Demo.Feature
{
    public partial class TrialExperience : PhoneApplicationPage
    {
        private static LicenseInformation _licenseInfo = new LicenseInformation();

        private static bool _isTrial = true;

        public TrialExperience()
        {
            InitializeComponent();

            // 检查许可证，仅为测试用，实际项目中最好将此逻辑放到 Application_Launching 和 Application_Activated 中
            CheckLicense();
        }

        private void CheckLicense()
        {
#if DEBUG
            // 仅调试用，强行指定程序为试用版
            _isTrial = true;
#else
            // 获取当前安装到设备的版本是否为试用版
            _isTrial = _licenseInfo.IsTrial();
#endif
            
            // 如果是试用版则禁用正式版的功能
            if (_isTrial)
                btnNormal.IsEnabled = false;
        }

        private void btnTrial_Click(object sender, RoutedEventArgs e)
        {
            MessageBox.Show("试用版可用的功能");
        }

        private void btnNormal_Click(object sender, RoutedEventArgs e)
        {
            MessageBox.Show("正式版里才有的功能");
        }

        private void btnBuy_Click(object sender, RoutedEventArgs e)
        {
            // 购买的话，直接打开应用程序在商店的详细页就好
            MarketplaceDetailTask marketPlaceDetailTask = new MarketplaceDetailTask();
            marketPlaceDetailTask.Show();
        }
    }
}

4、演示如何使用系统主题资源
ThemeResources.xaml

<phone:PhoneApplicationPage 
    x:Class="Demo.Feature.ThemeResources"
    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"
    FontFamily="{StaticResource PhoneFontFamilyNormal}"
    FontSize="{StaticResource PhoneFontSizeNormal}"
    Foreground="{StaticResource PhoneForegroundBrush}"
    SupportedOrientations="Portrait" Orientation="Portrait"
    mc:Ignorable="d" d:DesignHeight="768" d:DesignWidth="480"
    shell:SystemTray.IsVisible="True">

    <Grid x:Name="LayoutRoot" Background="Transparent">

        <TextBlock Text="使用系统主题资源" Style="{StaticResource PhoneTextExtraLargeStyle}" />

        <HyperlinkButton Content="全部系统主题资源" NavigateUri="http://msdn.microsoft.com/en-us/library/ff769552(v=vs.92)" TargetName="_blank" />
        
    </Grid>

</phone:PhoneApplicationPage>

5、演示如何实现本地数据的加密解密
EncryptData.xaml

<phone:PhoneApplicationPage 
    x:Class="Demo.Feature.EncryptData"
    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"
    FontFamily="{StaticResource PhoneFontFamilyNormal}"
    FontSize="{StaticResource PhoneFontSizeNormal}"
    Foreground="{StaticResource PhoneForegroundBrush}"
    SupportedOrientations="Portrait" Orientation="Portrait"
    mc:Ignorable="d" d:DesignHeight="768" d:DesignWidth="480"
    shell:SystemTray.IsVisible="True">

    <Grid x:Name="LayoutRoot" Background="Transparent">

        <TextBlock Text="注：不同的应用程序有不同的密钥" />
        
    </Grid>

</phone:PhoneApplicationPage>

EncryptData.xaml.cs

/*
 * 演示如何对数据做加密解密
 * 
 * ProtectedData - 用于加密解密数据
 *     Protect() - 加密数据
 *     Unprotect() - 解密数据
 * 
 * 注：不同的应用程序有不同的密钥，所以本示例的加密解密仅针对同一应用程序有效。应用场景为：本地数据的加密解密
 */

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 System.Security.Cryptography;
using System.Text;

namespace Demo.Feature
{
    public partial class EncryptData : PhoneApplicationPage
    {
        private string _base64 = "";

        public EncryptData()
        {
            InitializeComponent();

            EncryptDemo();

            DecryptDemo();
        }

        private void EncryptDemo()
        {
            byte[] plainText = Encoding.UTF8.GetBytes("webabcd");
            byte[] protectedData = ProtectedData.Protect(plainText, null);

            _base64 = Convert.ToBase64String(protectedData);

            MessageBox.Show("字符串“webabcd”加密且base64后的数据：" + Environment.NewLine + _base64);
        }

        private void DecryptDemo()
        {
            byte[] protectedData = Convert.FromBase64String(_base64);
            byte[] plainText = ProtectedData.Unprotect(protectedData, null);

            MessageBox.Show("解密后的数据：" + Environment.NewLine + Encoding.UTF8.GetString(plainText, 0, plainText.Length));
        }
    }
}

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