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android.app.backup
Interfaces
Classes
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Last updated 2025-08-20 UTC.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-20 UTC."],[],[],null,["# android.app.backup\n==================\n\n*** ** * ** ***\n\nKotlin \\|[Java](/reference/android/app/backup/package-summary \"View this page in Java\")\n\nInterfaces\n----------\n\n|-------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| [BackupHelper](/reference/kotlin/android/app/backup/BackupHelper) | Defines the calling interface that [BackupAgentHelper](/reference/kotlin/android/app/backup/BackupAgentHelper) uses when dispatching backup and restore operations to the installed helpers. |\n\nClasses\n-------\n\n|-----------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| [BackupAgent](/reference/kotlin/android/app/backup/BackupAgent) | Provides the central interface between an application and Android's data backup infrastructure. |\n| [BackupAgentHelper](/reference/kotlin/android/app/backup/BackupAgentHelper) | A convenient [BackupAgent](/reference/kotlin/android/app/backup/BackupAgent) wrapper class that automatically manages heterogeneous data sets within the backup data, each identified by a unique key prefix. |\n| [BackupDataInput](/reference/kotlin/android/app/backup/BackupDataInput) | Provides the structured interface through which a [BackupAgent](/reference/kotlin/android/app/backup/BackupAgent) reads information from the backup data set, via its [onRestore()](/reference/kotlin/android/app/backup/BackupAgent#onRestore(android.app.backup.BackupDataInput,%20kotlin.Int,%20android.os.ParcelFileDescriptor)) method. |\n| [BackupDataInputStream](/reference/kotlin/android/app/backup/BackupDataInputStream) | Provides an [java.io.InputStream](../../../java/io/InputStream.html#)-like interface for accessing an entity's data during a restore operation. |\n| [BackupDataOutput](/reference/kotlin/android/app/backup/BackupDataOutput) | Provides the structured interface through which a [BackupAgent](/reference/kotlin/android/app/backup/BackupAgent) commits information to the backup data set, via its [onBackup()](/reference/kotlin/android/app/backup/BackupAgent#onBackup(android.os.ParcelFileDescriptor,%20android.app.backup.BackupDataOutput,%20android.os.ParcelFileDescriptor)) method. |\n| [BackupManager](/reference/kotlin/android/app/backup/BackupManager) | The interface through which an application interacts with the Android backup service to request backup and restore operations. |\n| [FileBackupHelper](/reference/kotlin/android/app/backup/FileBackupHelper) | A helper class that can be used in conjunction with [android.app.backup.BackupAgentHelper](/reference/kotlin/android/app/backup/BackupAgentHelper) to manage the backup of a set of files. |\n| [FullBackupDataOutput](/reference/kotlin/android/app/backup/FullBackupDataOutput) | Provides the interface through which a [BackupAgent](/reference/kotlin/android/app/backup/BackupAgent) writes entire files to a full backup data set, via its [BackupAgent.onFullBackup(FullBackupDataOutput)](/reference/kotlin/android/app/backup/BackupAgent#onFullBackup(android.app.backup.FullBackupDataOutput)) method. |\n| [FullRestoreDataInput](/reference/kotlin/android/app/backup/FullRestoreDataInput) | Provides the interface through which a [BackupAgent](/reference/kotlin/android/app/backup/BackupAgent) reads entire files from a full backup data set, via its [BackupAgent.onRestoreFile(FullRestoreDataInput)](/reference/kotlin/android/app/backup/BackupAgent#onRestoreFile(android.app.backup.FullRestoreDataInput)) method. |\n| [RestoreObserver](/reference/kotlin/android/app/backup/RestoreObserver) | Callback class for receiving progress reports during a restore operation. |\n| [SharedPreferencesBackupHelper](/reference/kotlin/android/app/backup/SharedPreferencesBackupHelper) | A helper class that can be used in conjunction with [android.app.backup.BackupAgentHelper](/reference/kotlin/android/app/backup/BackupAgentHelper) to manage the backup of [android.content.SharedPreferences](../../content/SharedPreferences.html#). |"]]
