Windows Phone 7 better Splash screen
Introduction
In this article, I will show how you can change your old windows phone splash screen to an new intelligent one, because there will be a problem when you make the splash screen appears as the first page of the project.
you know that Microsoft team checks the windows phone application before accepting it in the marketplace, and there are some rules that your application must achieve, the important one here is that when the user presses the back button on the first screen the application must close( pause ) the application, so if there is a traditional splash screen , it will appear for the user.
and in this article, I will demonstrate how to create a loading progressbar, to give your application some motions.
Using the code
First, create a new windows phone 7 project, and then create a new page called MySplash.xaml.
now you add a reference for the namespace System.Windows.Controls.Primitives, which will be System.Windows.Controls.
Then you add the progressbar to the page, I created a DLL library to replace code implementation, so you add the library ( Add Reference ) called Libs_ProgressTempCSharp which will be located in the code sample.
After that open the global application page (App.xaml) and call the library like this:
xmlns:unsupported="clr-namespace:Microsoft.Phone.Controls.Unsupported"
and then add this style to Application.Resources section
<Application.Resources>
<Style x:Key="PerformanceProgressBar" TargetType="ProgressBar">
<Setter Property="Foreground" Value="{StaticResource PhoneAccentBrush}"/>
<Setter Property="Background" Value="{StaticResource PhoneAccentBrush}"/>
<Setter Property="Maximum" Value="100"/>
<Setter Property="IsHitTestVisible" Value="False"/>
<Setter Property="Padding" Value="{StaticResource PhoneHorizontalMargin}"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="ProgressBar">
<unsupported:RelativeAnimatingContentControl HorizontalContentAlignment="Stretch" VerticalContentAlignment="Stretch">
<unsupported:RelativeAnimatingContentControl.Resources>
<ExponentialEase EasingMode="EaseOut" Exponent="1" x:Key="ProgressBarEaseOut"/>
<ExponentialEase EasingMode="EaseOut" Exponent="1" x:Key="ProgressBarEaseIn"/>
</unsupported:RelativeAnimatingContentControl.Resources>
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="CommonStates">
<VisualState x:Name="Determinate"/>
<VisualState x:Name="Indeterminate">
<Storyboard RepeatBehavior="Forever" Duration="00:00:04.4">
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="IndeterminateRoot">
<DiscreteObjectKeyFrame KeyTime="0">
<DiscreteObjectKeyFrame.Value>
<Visibility>Visible</Visibility>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="DeterminateRoot">
<DiscreteObjectKeyFrame KeyTime="0">
<DiscreteObjectKeyFrame.Value>
<Visibility>Collapsed</Visibility>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames BeginTime="00:00:00.0" Storyboard.TargetProperty="X" Storyboard.TargetName="R1TT">
<LinearDoubleKeyFrame KeyTime="00:00:00.0" Value="0.1"/>
<EasingDoubleKeyFrame KeyTime="00:00:00.5" Value="33.1" EasingFunction="{StaticResource ProgressBarEaseOut}"/>
<LinearDoubleKeyFrame KeyTime="00:00:02.0" Value="66.1"/>
<EasingDoubleKeyFrame KeyTime="00:00:02.5" Value="100.1" EasingFunction="{StaticResource ProgressBarEaseIn}"/>
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames BeginTime="00:00:00.2" Storyboard.TargetProperty="X" Storyboard.TargetName="R2TT">
<LinearDoubleKeyFrame KeyTime="00:00:00.0" Value="0.1"/>
<EasingDoubleKeyFrame KeyTime="00:00:00.5" Value="33.1" EasingFunction="{StaticResource ProgressBarEaseOut}"/>
<LinearDoubleKeyFrame KeyTime="00:00:02.0" Value="66.1"/>
<EasingDoubleKeyFrame KeyTime="00:00:02.5" Value="100.1" EasingFunction="{StaticResource ProgressBarEaseIn}"/>
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames BeginTime="00:00:00.4" Storyboard.TargetProperty="X" Storyboard.TargetName="R3TT">
<LinearDoubleKeyFrame KeyTime="00:00:00.0" Value="0.1"/>
<EasingDoubleKeyFrame KeyTime="00:00:00.5" Value="33.1" EasingFunction="{StaticResource ProgressBarEaseOut}"/>
<LinearDoubleKeyFrame KeyTime="00:00:02.0" Value="66.1"/>
<EasingDoubleKeyFrame KeyTime="00:00:02.5" Value="100.1" EasingFunction="{StaticResource ProgressBarEaseIn}"/>
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames BeginTime="00:00:00.6" Storyboard.TargetProperty="X" Storyboard.TargetName="R4TT">
<LinearDoubleKeyFrame KeyTime="00:00:00.0" Value="0.1"/>
<EasingDoubleKeyFrame KeyTime="00:00:00.5" Value="33.1" EasingFunction="{StaticResource ProgressBarEaseOut}"/>
<LinearDoubleKeyFrame KeyTime="00:00:02.0" Value="66.1"/>
<EasingDoubleKeyFrame KeyTime="00:00:02.5" Value="100.1" EasingFunction="{StaticResource ProgressBarEaseIn}"/>
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames BeginTime="00:00:00.8" Storyboard.TargetProperty="X" Storyboard.TargetName="R5TT">
<LinearDoubleKeyFrame KeyTime="00:00:00.0" Value="0.1"/>
<EasingDoubleKeyFrame KeyTime="00:00:00.5" Value="33.1" EasingFunction="{StaticResource ProgressBarEaseOut}"/>
<LinearDoubleKeyFrame KeyTime="00:00:02.0" Value="66.1"/>
<EasingDoubleKeyFrame KeyTime="00:00:02.5" Value="100.1" EasingFunction="{StaticResource ProgressBarEaseIn}"/>
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames BeginTime="00:00:00.0" Storyboard.TargetProperty="Opacity" Storyboard.TargetName="R1">
<DiscreteDoubleKeyFrame KeyTime="0" Value="1"/>
<DiscreteDoubleKeyFrame KeyTime="00:00:02.5" Value="0"/>
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames BeginTime="00:00:00.2" Storyboard.TargetProperty="Opacity" Storyboard.TargetName="R2">
<DiscreteDoubleKeyFrame KeyTime="0" Value="1"/>
<DiscreteDoubleKeyFrame KeyTime="00:00:02.5" Value="0"/>
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames BeginTime="00:00:00.4" Storyboard.TargetProperty="Opacity" Storyboard.TargetName="R3">
<DiscreteDoubleKeyFrame KeyTime="0" Value="1"/>
<DiscreteDoubleKeyFrame KeyTime="00:00:02.5" Value="0"/>
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames BeginTime="00:00:00.6" Storyboard.TargetProperty="Opacity" Storyboard.TargetName="R4">
<DiscreteDoubleKeyFrame KeyTime="0" Value="1"/>
<DiscreteDoubleKeyFrame KeyTime="00:00:02.5" Value="0"/>
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames BeginTime="00:00:00.8" Storyboard.TargetProperty="Opacity" Storyboard.TargetName="R5">
<DiscreteDoubleKeyFrame KeyTime="0" Value="1"/>
<DiscreteDoubleKeyFrame KeyTime="00:00:02.5" Value="0"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<Grid>
<Grid x:Name="DeterminateRoot" Margin="{TemplateBinding Padding}" Visibility="Visible">
<Rectangle x:Name="ProgressBarTrack" Fill="{TemplateBinding Background}" Height="4" Opacity="0.1"/>
<Rectangle x:Name="ProgressBarIndicator" Fill="{TemplateBinding Foreground}" HorizontalAlignment="Left" Height="4"/>
</Grid>
<Border x:Name="IndeterminateRoot" Margin="{TemplateBinding Padding}" Visibility="Collapsed">
<Grid HorizontalAlignment="Left">
<Rectangle Fill="{TemplateBinding Foreground}" Height="4" IsHitTestVisible="False" Width="4" x:Name="R1" Opacity="0" CacheMode="BitmapCache">
<Rectangle.RenderTransform>
<TranslateTransform x:Name="R1TT"/>
</Rectangle.RenderTransform>
</Rectangle>
<Rectangle Fill="{TemplateBinding Foreground}" Height="4" IsHitTestVisible="False" Width="4" x:Name="R2" Opacity="0" CacheMode="BitmapCache">
<Rectangle.RenderTransform>
<TranslateTransform x:Name="R2TT"/>
</Rectangle.RenderTransform>
</Rectangle>
<Rectangle Fill="{TemplateBinding Foreground}" Height="4" IsHitTestVisible="False" Width="4" x:Name="R3" Opacity="0" CacheMode="BitmapCache">
<Rectangle.RenderTransform>
<TranslateTransform x:Name="R3TT"/>
</Rectangle.RenderTransform>
</Rectangle>
<Rectangle Fill="{TemplateBinding Foreground}" Height="4" IsHitTestVisible="False" Width="4" x:Name="R4" Opacity="0" CacheMode="BitmapCache">
<Rectangle.RenderTransform>
<TranslateTransform x:Name="R4TT"/>
</Rectangle.RenderTransform>
</Rectangle>
<Rectangle Fill="{TemplateBinding Foreground}" Height="4" IsHitTestVisible="False" Width="4" x:Name="R5" Opacity="0" CacheMode="BitmapCache">
<Rectangle.RenderTransform>
<TranslateTransform x:Name="R5TT"/>
</Rectangle.RenderTransform>
</Rectangle>
</Grid>
</Border>
</Grid>
</unsupported:RelativeAnimatingContentControl>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Application.Resources>
try to arrange and decorate your splash screen as the way you like ( I choose the simplest one ) add your progressbar control, select its forecolor, and don't forget to use the style for it.
<ProgressBar x:Name="DownloadProgress" IsIndeterminate="False"
Style="{StaticResource PerformanceProgressBar}" Margin="0,347,7,173" />
please don't forget to Indeterminate the progressbar from the page load event this.DownloadProgress.IsIndeterminate = true;
so, still nothing new
to now, make the other page ( not the splash page ) the
default page ( DefaultTask ) , of course you have to change it from the WMAppManifest.xml
file. and here I call the page [ MainPage.xaml ]
open the MainPage.xaml and call this namespaces
using System.Threading;
using System.Windows.Controls.Primitives;
the first namespace [Threading] contains the
BackgroundWorker class which used for
multithreading, and it will be used to Sleep the thread for the time you want
The second namespace contains a control called Popup which responsible for showing a page or usercontrol or any piece on the current page
So let's write the code
add this code inside the class
Popup Mypopup = new Popup() { IsOpen = true, Child = new MySplash() };
BackgroundWorker MybackroungWorker=new BackgroundWorker();
I used object initializer for the Popup ,
then sat the IsOpen member variable
to true, and the second thing ( important ) I sat the name of the child element
that I
will show ( and here it's my splash which is called, MySplash ) , you must know
that we call the name of the page class, not the name of the page.write this methodmethod
private void PopupView()
{
MybackroungWorker.DoWork += ((s, args) =>
{
Thread.Sleep(4000); // time here
});
MybackroungWorker.RunWorkerCompleted += ((s, args) =>
{
this.Dispatcher.BeginInvoke(() =>
{
this.Mypopup.IsOpen = false;
}
);
});
MybackroungWorker.RunWorkerAsync();
}
this method is called the popup . set the backgroundworker time to stop the
thread via the Thread.Sleep() method , which takes a parameter value by
millisecond, and here its 4 seconds (4000 millisecond)
you need to call the method now, I prefer to call it in the constructor
PopupView();
Still some work is left, when you press the back button, this popup will appear so I will make a public static variable, which will detect if the splash is opened or not
make a class with a public static variable called IsOpened ,
public class General
{
public static bool IsOpen = false;
}
check the process before calling the PopupView method
if (General.IsOpen==false)
PopupView();
General.IsOpen = true;
Points of Interest
The amazing thing in the code is the Popup class, which can be used wildly, and it will give your project nice effects, for example you can use it for displaying the about information
( may be opacity ), disappearing the about information when the user press it, ... etc, I will let you free to think and create.
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