BackupAgent.OnRestoreFile Method

Reference

Definition

Namespace:: Android.App.Backup

Assembly:: Mono.Android.dll

Important

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Handle the data delivered via the given file descriptor during a full restore operation.

[Android.Runtime.Register("onRestoreFile", "(Landroid/os/ParcelFileDescriptor;JLjava/io/File;IJJ)V", "GetOnRestoreFile_Landroid_os_ParcelFileDescriptor_JLjava_io_File_IJJHandler")]
public virtual void OnRestoreFile (Android.OS.ParcelFileDescriptor? data, long size, Java.IO.File? destination, Android.App.Backup.BackupFileType type, long mode, long mtime);

[<Android.Runtime.Register("onRestoreFile", "(Landroid/os/ParcelFileDescriptor;JLjava/io/File;IJJ)V", "GetOnRestoreFile_Landroid_os_ParcelFileDescriptor_JLjava_io_File_IJJHandler")>]
abstract member OnRestoreFile : Android.OS.ParcelFileDescriptor * int64 * Java.IO.File * Android.App.Backup.BackupFileType * int64 * int64 -> unit
override this.OnRestoreFile : Android.OS.ParcelFileDescriptor * int64 * Java.IO.File * Android.App.Backup.BackupFileType * int64 * int64 -> unit

Parameters

data: ParcelFileDescriptor

A read-only file descriptor from which the agent can read size bytes of file data.

size: Int64

The number of bytes of file content to be restored to the given destination. If the file system object being restored is a directory, size will be zero.

destination: File

The File on disk to be restored with the given data.

type: BackupFileType

The kind of file system object being restored. This will be either BackupAgent#TYPE_FILE or BackupAgent#TYPE_DIRECTORY.

mode: Int64

The access mode to be assigned to the destination after its data is written. This is in the standard format used by chmod().

mtime: Int64

The modification time of the file when it was backed up, suitable to be assigned to the file after its data is written.

Attributes: RegisterAttribute

Exceptions

IOException

Remarks

Handle the data delivered via the given file descriptor during a full restore operation. The agent is given the path to the file's original location as well as its size and metadata.

The file descriptor can only be read for size bytes; attempting to read more data has undefined behavior.

The default implementation creates the destination file/directory and populates it with the data from the file descriptor, then sets the file's access mode and modification time to match the restore arguments.

Java documentation for android.app.backup.BackupAgent.onRestoreFile(android.os.ParcelFileDescriptor, long, java.io.File, int, long, long).

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.

Applies to

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