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Learn how to effectively remove the `ripple effect` from CollectionView selection in Xamarin.Forms with a custom renderer approach.
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How to Remove Ripple Effect from CollectionView in Xamarin

If you are working with Xamarin.Forms and using a CollectionView, you might have noticed the automatic ripple effect that occurs when you click on an item. This visual feedback can be useful in some scenarios, but not all applications appreciate the ripple effect aesthetics. Fortunately, there’s a straightforward way to remove it and customize your app’s UI.

This guide will guide you through the steps needed to eliminate the ripple effect from your CollectionView items using a custom renderer approach. So, let's dive in!

Understanding the Problem

When you define a CollectionView in Xamarin.Forms, the default behavior adds a ripple effect when an item is selected. While this feature can enhance user experience in some applications, developers may need to disable it for various reasons, such as achieving a specific visual design.

The Code to Start With

Here’s a basic structure of a CollectionView in Xamarin.Forms that showcases a simple implementation:

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Solution: Using Custom Renderers

To eliminate the ripple effect, you'll need to create a custom renderer. This involves writing platform-specific code for Android.

Step 1: Create a Custom StackLayout

First, create a subclass of StackLayout (or Grid, Frame, etc.) depending on your needs.

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Step 2: Android Implementation

In your Android project, create a new XML file named my_cell_style.xml in the Resources/drawable folder:

[[See Video to Reveal this Text or Code Snippet]]

Now, add the following renderer in your Android project:

[[See Video to Reveal this Text or Code Snippet]]

Step 3: Use the Custom StackLayout in XAML

In your XAML where you define the CollectionView, replace the default StackLayout with your custom MyStackLayout.

[[See Video to Reveal this Text or Code Snippet]]

Additional Considerations

Update for Buttons in Cells

If you add buttons to your CollectionView cells, you'll need to create a custom button as well:

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And the renderer for the button would look like:

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Additional XML Tweaks

Lastly, you should add this line to Resources -> value -> style.xml:

[[See Video to Reveal this Text or Code Snippet]]

Conclusion

By following these steps, you can successfully remove the ripple effect from your CollectionView items in Xamarin. This customization helps you maintain the desired aesthetic and user experience in your application. With a little creativity and customization, you can tailor your app’s interface to better suit your needs.

Now that you know how to tackle the ripple effect, take some time to experiment with other customizations to make your Xamarin.Forms applications stand out!