Blend ---- 旋转按钮

今天在一本书中看到一段关于Blend的使用，所以简单的学习一下，并作一下记录。

一、创建一个Silverlight for Windows Phone工程界面布局大概如下图

<phone:PhoneApplicationPage 
    x:Class="BlendPro.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 是放置所有頁面的根資料格-->
    <Grid x:Name="LayoutRoot" Background="Transparent">
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto"/>
            <RowDefinition Height="*"/>
        </Grid.RowDefinitions>

        <!--TitlePanel 包含應用程式的名稱和頁面標題-->
        <StackPanel x:Name="TitlePanel" Grid.Row="0" Margin="12,17,0,28">
            <TextBlock x:Name="ApplicationTitle" Text="BlendPro" Style="{StaticResource PhoneTextNormalStyle}"/>
            <TextBlock x:Name="PageTitle" Text="Blend Pro" Margin="9,-7,0,0" Style="{StaticResource PhoneTextTitle1Style}"/>
        </StackPanel>

        <!--ContentPanel - 其他內容置於此-->
        <Grid x:Name="ContentPanel" Grid.Row="1" Margin="12,0,12,0">
            <Button Content="Search" Margin="0,0,0,100" Height="72" Click="SchButton_Click" Name="SchButton" Width="180"/>
        </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;

namespace BlendPro
{
    public partial class MainPage : PhoneApplicationPage
    {
        // 建構函式
        public MainPage()
        {
            InitializeComponent();
        }

        private void SchButton_Click(object sender, RoutedEventArgs e)
        {
            
        }
    }
}

代码很easy
二、在Blend中打开该程序

开启方法 ：视图->在Expression Blend中开启

三、添加一个动画故事板（使其在按下按钮时被触发）

在Objects and Timeline 窗口中，单击“+”按钮。这会创建一个新的故事板，并为其取名为“SearchPressAnimation”然后单击OK按钮。你会看见在Objects and Timeline 窗口中出现一条时间线，同时在主窗口中显示了一个记录图标，表示你正在编辑的故事板。（如图）

在0.5秒的过程中，我们把SchButton旋转-180度。为此，大约0.5秒标记处单击并移动黄色竖线，该线标示动画的当前点。确保SchButton控件被选中，在Properties窗口的RenderTransform区域中将旋转角度设置为-180。

接下来在1秒的标记处单击，设置SchButton的角度为-360。按下Play按钮，就可以预览按钮动画了。完成故事板后，单击故事板名称左侧的红色按钮停止编辑故事板。最后关联事件来启动故事板，右击Projects窗口中的Solution节点，选择Edit in Visual Studio返回到VisualStudio，这时回到VisualStudio中要重新载入程序，然后在SchButton的Click事件中启动故事板。

整个代码如下：

<phone:PhoneApplicationPage 
    x:Class="BlendPro.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">
    <phone:PhoneApplicationPage.Resources>
        <Storyboard x:Name="SearchPressAnimation">
            <DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.RenderTransform).(CompositeTransform.Rotation)" Storyboard.TargetName="SchButton">
                <EasingDoubleKeyFrame KeyTime="0" Value="0"/>
                <EasingDoubleKeyFrame KeyTime="0:0:0.5" Value="-180"/>
                <EasingDoubleKeyFrame KeyTime="0:0:1" Value="-360"/>
            </DoubleAnimationUsingKeyFrames>
        </Storyboard>
    </phone:PhoneApplicationPage.Resources>

    <!--LayoutRoot 是放置所有頁面的根資料格-->
    <Grid x:Name="LayoutRoot" Background="Transparent">
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto"/>
            <RowDefinition Height="*"/>
        </Grid.RowDefinitions>

        <!--TitlePanel 包含應用程式的名稱和頁面標題-->
        <StackPanel x:Name="TitlePanel" Grid.Row="0" Margin="12,17,0,28">
            <TextBlock x:Name="ApplicationTitle" Text="BlendPro" Style="{StaticResource PhoneTextNormalStyle}"/>
            <TextBlock x:Name="PageTitle" Text="Blend Pro" Margin="9,-7,0,0" Style="{StaticResource PhoneTextTitle1Style}"/>
        </StackPanel>

        <!--ContentPanel - 其他內容置於此-->
        <Grid x:Name="ContentPanel" Grid.Row="1" Margin="12,0,12,0" RenderTransformOrigin="0.5,0.5">
            <Grid.RenderTransform>
                <CompositeTransform/>
            </Grid.RenderTransform>
            <Button Content="Search" Margin="0,0,0,100" Height="72" Click="SchButton_Click" Name="SchButton" Width="180" RenderTransformOrigin="0.5,0.5" >
                <Button.RenderTransform>
                    <CompositeTransform/>
                </Button.RenderTransform>
            </Button>
        </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;

namespace BlendPro
{
    public partial class MainPage : PhoneApplicationPage
    {
        // 建構函式
        public MainPage()
        {
            InitializeComponent();
        }

        private void SchButton_Click(object sender, RoutedEventArgs e)
        {
            this.SearchPressAnimation.Begin();
        }
    }
}