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Android example source code file (RestoreObserver.java)

This example Android source code file (RestoreObserver.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Android by Example" TM.

Java - Android tags/keywords

android, app, application, restoreobserver, string

The RestoreObserver.java Android example source code

/*
 * Copyright (C) 2010 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package android.app.backup;

import java.lang.String;
import android.app.backup.RestoreSet;

/**
 * Callback class for receiving progress reports during a restore operation.  These
 * methods will all be called on your application's main thread.
 */
public abstract class RestoreObserver {
    /**
     * Supply a list of the restore datasets available from the current transport.  This
     * method is invoked as a callback following the application's use of the
     * {@link android.app.backup.IRestoreSession.getAvailableRestoreSets} method.
     *
     * @param result An array of {@link android.app.backup.RestoreSet RestoreSet} objects
     *   describing all of the available datasets that are candidates for restoring to
     *   the current device.  If no applicable datasets exist, {@code result} will be
     *   {@code null}.
     *
     * @hide
     */
    public void restoreSetsAvailable(RestoreSet[] result) {
    }

    /**
     * The restore operation has begun.
     *
     * @param numPackages The total number of packages being processed in
     *   this restore operation.
     */
    public void restoreStarting(int numPackages) {
    }

    /**
     * An indication of which package is being restored currently, out of the
     * total number provided in the {@link #restoreStarting(int)} callback.  This method
     * is not guaranteed to be called: if the transport is unable to obtain
     * data for one or more of the requested packages, no onUpdate() call will
     * occur for those packages.
     *
     * @param nowBeingRestored The index, between 1 and the numPackages parameter
     *   to the {@link #restoreStarting(int)} callback, of the package now being
     *   restored.  This may be non-monotonic; it is intended purely as a rough
     *   indication of the backup manager's progress through the overall restore process.
     * @param currentPackage The name of the package now being restored.
     */
    public void onUpdate(int nowBeingRestored, String currentPackage) {
    }

    /**
     * The restore process has completed.  This method will always be called,
     * even if no individual package restore operations were attempted.
     *
     * @param error Zero on success; a nonzero error code if the restore operation
     *   as a whole failed.
     */
    public void restoreFinished(int error) {
    }
}

Other Android examples (source code examples)

Here is a short list of links related to this Android RestoreObserver.java source code file:

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