Animated Accordion in .Net MAUI
Learn how to create an animated accordion in your .NET MAUI app with this step-by-step guide. Enhance your app’s user experience by adding interactive and engaging UI elements.
An accordion is a UI element that allows users to expand and collapse content sections with a click. An animated accordion takes this a step further by adding visual feedback to the interaction, making it more engaging and intuitive for the user. In this tutorial, we will show you how to create an animated accordion in .NET MAUI using XAML and C#.
Step 1: Create a new project
The first step is to create a new .NET MAUI project in Visual Studio. You can do this by selecting “File” > “New” > “Project” and selecting the .NET MAUI template.
Step 2: Add the Accordion control
The next step is to add the Accordion control to your project. You can do this by adding the following code to your XAML file:
<maui:Accordion>
<maui:AccordionItem HeaderText="Section 1">
<Label Text="Content for section 1" />
</maui:AccordionItem>
<maui:AccordionItem HeaderText="Section 2">
<Label Text="Content for section 2" />
</maui:AccordionItem>
<maui:AccordionItem HeaderText="Section 3">
<Label Text="Content for section 3" />
</maui:AccordionItem>
</maui:Accordion>This code defines an Accordion control with three sections. Each section is defined as an AccordionItem with a HeaderText and Content. The Content can be any UI element, such as a Label or a StackLayout.
Step 3: Add animation to the Accordion control
The next step is to add animation to the Accordion control to create the expanding and collapsing effect. You can do this by adding the following code to your C# file:
private async void OnAccordionItemTapped(object sender, AccordionItemTappedEventArgs e)
{
var accordionItem = e.Item as AccordionItem;
if (accordionItem != null)
{
var isExpanded = accordionItem.IsExpanded;
if (isExpanded)
{
await accordionItem.RotateTo(0, 250, Easing.Linear);
}
else
{
await accordionItem.RotateTo(180, 250, Easing.Linear);
}
accordionItem.IsExpanded = !isExpanded;
}
}This code defines a method that is called when an AccordionItem is tapped. The method checks whether the item is currently expanded or not, and then rotates the item 180 degrees to simulate the expanding and collapsing effect. Finally, the IsExpanded property of the AccordionItem is updated to reflect the new state.
Step 4: Add event handler to the Accordion control
The last step is to add the event handler to the Accordion control. You can do this by adding the following code to your XAML file:
<maui:Accordion>
<maui:Accordion.ItemTapped>
<Command
Command="{Binding OnAccordionItemTappedCommand}"
CommandParameter="{Binding .}"
/>
</maui:Accordion.ItemTapped>
</maui:Accordion>This code defines a Command that is bound to the OnAccordionItemTapped method in the C# file. When an AccordionItem is tapped, the Command is executed and the corresponding method is called.
