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Page Transition Animation in Windows Phone 7


This article describes how you can create page transition animations in a Windows Phone 7 application. Page transition animations can be created either using XAML code or code-behind code. In this article we will see the use of both the options. First we will start with writing XAML code and at the end we will see how to animate page transitions using code-behind code.

First we have to add a reference to the Microsoft.Phone.Controls.Toolkit.dll file to our project.

This file is found in the following location:

C:\Program Files\Microsoft SDKs\Windows Phone\v7.0\Toolkit\Feb11\Bin

Introduction

By using Page transition animations, we can customize the way pages are displayed when we enter/exit a page from its previous/next page. A Forward In transition occurs on a page when we move into a page from its previous page. A Forward Out transition occurs when we move out of a page to its next page. A Backward In transition occurs when we move into a page from its next page. A Backward Out transition occurs when we move out of a page to its previous page. We can visualize page transitions using the following figure.

PTWinPHn1.gif

There are 5 typea of transitions as follows:

  • RollTransition
  • RotateTransition
  • SlideTransition
  • SwivelTransition
  • TurnstileTransition

All transitions except RollTransition have a Mode property which specifies the type of transition you want.

Example Code

First create a new Windows Phone 7 project in Microsoft Visual Studio 2010 Express for Windows Phone. Visual Studio adds a default page called MainPage to the project.

Add a button and customize the page to give it the following appearance.

PTWinPHn2.gif

Add two pages, Page1 and Page2 as follows:

PTWinPHn3.gif

Write the following code on the click event of the button on the MainPage to navigate to the FirstPage:

private void button1_Click(object sender, RoutedEventArgs e)
{
    NavigationService.Navigate(new Uri("/Page1.xaml", UriKind.Relative));
}

Write the following code on the click event of the button on the FirstPage to navigate to the SecondPage:

private void button1_Click(object sender, RoutedEventArgs e)
{
    NavigationService.Navigate(new Uri("/Page2.xaml", UriKind.Relative));
}

We will provide our custom animation on the FirstPage.

Add the toolkit namespace as an attribute of the <phone:PhoneApplicationPage> root element in the FirstPage:

xmlns:toolkit="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone.Controls.Toolkit"

The following is the XAML code of the FirstPage to animate transition to and from the FirstPage:

<toolkit:TransitionService.NavigationInTransition>
    <toolkit:NavigationInTransition>
        <toolkit:NavigationInTransition.Backward>
            <toolkit:TurnstileTransition Mode="BackwardIn"/>
        </toolkit:NavigationInTransition.Backward>
        <toolkit:NavigationInTransition.Forward>
            <toolkit:TurnstileTransition Mode="ForwardIn"/>
        </toolkit:NavigationInTransition.Forward>
    </toolkit:NavigationInTransition>
</toolkit:TransitionService.NavigationInTransition>
<toolkit:TransitionService.NavigationOutTransition>
    <toolkit:NavigationOutTransition>
        <toolkit:NavigationOutTransition.Backward>
            <toolkit:TurnstileTransition Mode="BackwardOut"/>
        </toolkit:NavigationOutTransition.Backward>
        <toolkit:NavigationOutTransition.Forward>
            <toolkit:TurnstileTransition Mode="ForwardOut"/>
        </toolkit:NavigationOutTransition.Forward>
    </toolkit:NavigationOutTransition>
</toolkit:TransitionService.NavigationOutTransition>

The above code provides the TurnstileTransition for the In and Out transitions on the FirstPage. The Mode attribute of the <toolkit:TurnstileTransition> element specifies the transition type to be applied.

The complete XAML code of the FirstPage is as follows:

<phone:PhoneApplicationPage
x:Class="WindowsPhoneNavigationTransitions.Page1"
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"
xmlns:toolkit="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone.Controls.Toolkit"
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">

    <toolkit:TransitionService.NavigationInTransition>
        <toolkit:NavigationInTransition>
            <toolkit:NavigationInTransition.Backward>
                <toolkit:TurnstileTransition Mode="BackwardIn"/>
            </toolkit:NavigationInTransition.Backward>
            <toolkit:NavigationInTransition.Forward>
                <toolkit:TurnstileTransition Mode="ForwardIn"/>
            </toolkit:NavigationInTransition.Forward>
        </toolkit:NavigationInTransition>
    </toolkit:TransitionService.NavigationInTransition>
    <toolkit:TransitionService.NavigationOutTransition>
        <toolkit:NavigationOutTransition>
            <toolkit:NavigationOutTransition.Backward>
                <toolkit:TurnstileTransition Mode="BackwardOut"/>
            </toolkit:NavigationOutTransition.Backward>
            <toolkit:NavigationOutTransition.Forward>
                <toolkit:TurnstileTransition Mode="ForwardOut"/>
            </toolkit:NavigationOutTransition.Forward>
        </toolkit:NavigationOutTransition>
    </toolkit:TransitionService.NavigationOutTransition>

    <!--LayoutRoot is the root grid where all page content is placed-->
    <Grid x:Name="LayoutRoot" Background="Transparent">
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto"/>
            <RowDefinition Height="*"/>
        </Grid.RowDefinitions>

        <!--TitlePanel contains the name of the application and page title-->
        <StackPanel x:Name="TitlePanel" Grid.Row="0" Margin="12,17,0,28">
            <TextBlock x:Name="ApplicationTitle" Text="Navigation Transitions" Style="{StaticResource PhoneTextNormalStyle}"/>
            <TextBlock x:Name="PageTitle" Text="First Page" Margin="9,-7,0,0" Style="{StaticResource PhoneTextTitle1Style}"/>
        </StackPanel>

        <!--ContentPanel - place additional content here-->
        <Grid x:Name="ContentPanel" Grid.Row="1" Margin="12,0,12,0" Background="Lime">
            <Button Content="Go to Second Page" Height="72" HorizontalAlignment="Left" Margin="93,237,0,0" Name="button1" VerticalAlignment="Top" Width="270" Click="button1_Click" />
        </Grid>
    </Grid>

    <!--Sample code showing usage of ApplicationBar-->
    <!--<phone:PhoneApplicationPage.ApplicationBar>
<shell:ApplicationBar IsVisible="True" IsMenuEnabled="True">
<shell:ApplicationBarIconButton IconUri="/Images/appbar_button1.png" Text="Button 1"/>
<shell:ApplicationBarIconButton IconUri="/Images/appbar_button2.png" Text="Button 2"/>
<shell:ApplicationBar.MenuItems>
<shell:ApplicationBarMenuItem Text="MenuItem 1"/>
<shell:ApplicationBarMenuItem Text="MenuItem 2"/>
</shell:ApplicationBar.MenuItems>
</shell:ApplicationBar>
</phone:PhoneApplicationPage.ApplicationBar>-->

</phone:PhoneApplicationPage>

In the InitializePhoneApplication() method in the App.xaml.cs file, initialize the RootFrame with a new instance of the TransitionFrame class as follows:

RootFrame = new TransitionFrame();

The following is the code of the InitializePhoneApplication() method in the App.xaml.cs file:

private void InitializePhoneApplication()
{
    if (phoneApplicationInitialized)
        return;

    // Create the frame but don't set it as RootVisual yet; this allows the splash

    // screen to remain active until the application is ready to render.
    // RootFrame = new PhoneApplicationFrame();
    RootFrame = new TransitionFrame();
    RootFrame.Navigated += CompleteInitializePhoneApplication;

    // Handle navigation failures
    RootFrame.NavigationFailed += RootFrame_NavigationFailed;

    // Ensure we don't initialize again
    phoneApplicationInitialized = true;
}

Running the project now will show transition animation while navigating from the MainPage to the FirstPage. Backward navigation will automatically occur when you click the Back button of the phone on the SecondPage.
 
To animate the transitions using code-behind code, override the OnNavigatedTo method on the target page as follows:

protected override void OnNavigatedTo(System.Windows.Navigation.NavigationEventArgs e)
{
    base.OnNavigatedTo(e);
    SlideTransition transition = new SlideTransition();
    transition.Mode = SlideTransitionMode.SlideRightFadeIn;
    PhoneApplicationPage page = (PhoneApplicationPage)((PhoneApplicationFrame)Application.Current.RootVisual).Content;
    ITransition trans = transition.GetTransition(page);
    trans.Completed += delegate
     {
        trans.Stop();
     };
        trans.Begin();
}

The above code gets executed every time the page is navigated to. In this code, the SlideTransition class is used to create and apply the SlideRightFadeIn effect.
 


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