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Last updated 2025-02-10 UTC.
[null,null,["Last updated 2025-02-10 UTC."],[],[],null,["# android.support.v7.recyclerview.extensions\n\nadded in [version 27.1.0](/topic/libraries/support-library/revisions) \n\nandroid.support.v7.recyclerview.extensions\n==========================================\n\n| This package is part of the Android [support library](/topic/libraries/support-library) which is no longer maintained. The support library has been superseded by [AndroidX](/jetpack/androidx) which is part of [Jetpack](/jetpack). We recommend using the AndroidX libraries in all new projects. You should also consider [migrating](/jetpack/androidx/migrate) existing projects to AndroidX. To find the AndroidX class that maps to this deprecated class, see the AndroidX support library [class\n| mappings](/jetpack/androidx/migrate/class-mappings).\n\nClasses\n-------\n\n|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| [AsyncDifferConfig](/reference/android/support/v7/recyclerview/extensions/AsyncDifferConfig)\\\u003cT\\\u003e | Configuration object for [ListAdapter](/reference/android/support/v7/recyclerview/extensions/ListAdapter), [AsyncListDiffer](/reference/android/support/v7/recyclerview/extensions/AsyncListDiffer), and similar background-thread list diffing adapter logic. |\n| [AsyncDifferConfig.Builder](/reference/android/support/v7/recyclerview/extensions/AsyncDifferConfig.Builder)\\\u003cT\\\u003e | Builder class for [AsyncDifferConfig](/reference/android/support/v7/recyclerview/extensions/AsyncDifferConfig). |\n| [AsyncListDiffer](/reference/android/support/v7/recyclerview/extensions/AsyncListDiffer)\\\u003cT\\\u003e | Helper for computing the difference between two lists via [DiffUtil](/reference/android/support/v7/util/DiffUtil) on a background thread. |\n| [ListAdapter](/reference/android/support/v7/recyclerview/extensions/ListAdapter)\\\u003cT, VH extends [RecyclerView.ViewHolder](/reference/android/support/v7/widget/RecyclerView.ViewHolder)\\\u003e | [RecyclerView.Adapter](/reference/android/support/v7/widget/RecyclerView.Adapter) base class for presenting List data in a [RecyclerView](/reference/android/support/v7/widget/RecyclerView), including computing diffs between Lists on a background thread. |\n\n-\n\n Classes\n -------\n\n - [AsyncDifferConfig](/reference/android/support/v7/recyclerview/extensions/AsyncDifferConfig)\n - [AsyncDifferConfig.Builder](/reference/android/support/v7/recyclerview/extensions/AsyncDifferConfig.Builder)\n - [AsyncListDiffer](/reference/android/support/v7/recyclerview/extensions/AsyncListDiffer)\n - [ListAdapter](/reference/android/support/v7/recyclerview/extensions/ListAdapter)"]]
