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This article mainly shows you the "XamarinAndroid in the RecylerView sub-elements to add / delete operations to achieve transparent animation effects", the content is easy to understand, clear, hope to help you solve your doubts, the following let the editor lead you to study and learn "XamarinAndroid in RecylerView sub-elements to add / delete operations when how to achieve transparent animation effect" this article.

If you don't have the animation you want in RecyclerViewAnimators.Animators, you can customize one. At this point, you need to have the custom animation inherit the BaseItemAnimator abstract class.

[example 1-2] the following is based on the RecylerViewAnimatorsItemAnimator project to achieve transparent animation when the RecylerView sub-element is added / deleted. The specific steps are as follows:

(1) create a class file named AlphaAnimator.

(2) Open the AlphaAnimator.cs file to realize the transparency animation. The code is as follows:

Using System

Using System.Collections.Generic

Using System.Linq

Using System.Text

Using Android.App

Using Android.Content

Using Android.OS

Using Android.Runtime

Using Android.Support.V4.View

Using Android.Support.V7.Widget

Using Android.Views

Using Android.Widget

Using RecyclerViewAnimators.Animators

Namespace RecylerViewAnimatorsItemAnimator

{

Public class AlphaAnimator: BaseItemAnimator

{

Public AlphaAnimator ()

{

}

/ / Animation called when adding child elements

Protected override void AnimateAddImpl (RecyclerView.ViewHolder holder)

{

ViewCompat.Animate (holder.ItemView)

.Alpha (1)

.SetDuration (AddDuration)

.start ()

}

/ / Animation called when child elements are deleted

Protected override void AnimateRemoveImpl (RecyclerView.ViewHolder holder)

{

ViewCompat.Animate (holder.ItemView)

.SetDuration (RemoveDuration)

.Alpha (0)

.start ()

}

}

}

These are all the contents of the article "how to achieve transparent animation effects when adding / removing RecylerView sub-elements in XamarinAndroid". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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