Basics of the Kotlin programming language.Creating Android apps using Android Studio.This article assumes that you have prior knowledge on: This saves time and the device’s resources while providing a better experience for the user. Since Myers’ technique does not handle objects that have been moved, DiffUtil does a second attempt on the output to identify elements that have been relocated. Myers’ algorithm to figure out how many updates are essential to convert one data set to the other. With the use of DiffUtil, we can easily handle changes in a dataset and instantly reflect them on a RecyclerView.ĭiffUtil is a utility class that computes the variation between two sets of data and returns a list of update operations that change the old list to the new one. An annoyed user will always give negative feedback! This easily leads to an ANR (App Not Responding) exception that annoys your application’s users. While these methods work well with small amounts of data, it becomes hectic for your app to update and fully reload huge amounts of data. When you want to update data in a RecyclerView, you probably use notifyOnDataSetChanged() or notifyOnItemPositionChanged() methods. Performance refers to the capability of an application to load and refresh data on various events. The performance of a mobile application is one of the most important aspects in determining the user experience.

Android studio recyclerview performance