samples/SampleSyncAdapter/src/com/example/android/samplesync/syncadapter/SyncService.java

/*
 * 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 com.example.android.samplesync.syncadapter;

import android.app.Service;
import android.content.Intent;
import android.os.IBinder;

/**
 * Service to handle Account sync. This is invoked with an intent with action
 * ACTION_AUTHENTICATOR_INTENT. It instantiates the syncadapter and returns its
 * IBinder.
 */
public class SyncService extends Service {
    private static final Object sSyncAdapterLock = new Object();
    private static SyncAdapter sSyncAdapter = null;

    /*
     * {@inheritDoc}
     */
    @Override
    public void onCreate() {
        synchronized (sSyncAdapterLock) {
            if (sSyncAdapter == null) {
                sSyncAdapter = new SyncAdapter(getApplicationContext(), true);
            }
        }
    }

    /*
     * {@inheritDoc}
     */
    @Override
    public IBinder onBind(Intent intent) {
        return sSyncAdapter.getSyncAdapterBinder();
    }
}