Here is the explanation of the attributes used in animation: This rotates the button from 0 to 45 degrees. We will have two animation resource files for the Add button, one for rotating it when opening and the other when closing.īuttons Call and Message will have two animation resource files for animating from top to bottom of the Add button. To create animations, go to the resource manager and select Animation, then click on (+) to add Animation Resource File. We will now create animations that apply to the other two buttons ( Call and Message) when the Add button is clicked. They will appear when the Add button is clicked. ![]() Initially, the Call and Message buttons are set invisible. Paste the following code into the activity_main.xml file: ![]() Therefore, we are going to create a custom FAB with three buttons. This tutorial will choose the add, call, and message icons. To add icons, right-click on drawable, select new, then select Vector Asset and choose an icon from Clip Art. These icons will be placed at the center of the FAB. Design an expandable floating action button.Īfter creating a new Android project, go to the drawable folder and import drawable icons from vector assets.Design a custom extendable floating action button.Be conversant with the Kotlin programming language and ViewBinding. ![]() Have a basic understanding of Material components.To follow through this tutorial, the reader should: Designing Extendable Floating Action Button.What is a Floating Action Button?Ī Floating Action Button (FAB) is a circular button that usually floats on the screen and displays the primary action of an application.Įxpandable Floating Actions Button is a FAB that can animate when clicked or when the user scrolls the contents on the screen. ![]() This involves using the Animation class.Īnimations show a change of state in the button when clicked. This tutorial will cover how to create a custom Expandable Floating Action Button (FAB) in Android.
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