Animated iPhone-style ImageButton with Silverlight 4

In this article I am presenting a way to create animated iPhone-style ImageButton control in Silverlight 4. Button will have icon on it, rounded corners and will zoom-in/zoom-out on hover. It will be done programmatically, with very minimum amount of XAML.

I start with creating ImageButton class. I use ButtonBase as base class:

Class declaration

I want my button to contain rounded rectangle with shadow and image on it. I add these items in constructor:

Class constructor

Now my control contains rectangle and image laid out over a grid to ensure proper items positioning. Next step is to add animation to enable zoom-in/out on hovering. This can be achieved with storyboards and double animations:

Animations

To start animations I need to start animations when mouse cursor enters or leaves control:

Events

Very last step is making ImageSource property “bindable” so you can specify image from XAML. In order to do this I register new dependency property on my class:

Dependency property

The control then can be used in a following way:

Usage

And ready controls looks like this:

Final effect

 

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