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Android example source code file (SyncContext.java)

This example Android source code file (SyncContext.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, heartbeat_send_interval_in_ms, ibinder, isynccontext, os, remoteexception, synccontext

The SyncContext.java Android example source code

/*
 * Copyright (C) 2008 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.content;

import android.os.RemoteException;
import android.os.SystemClock;
import android.os.IBinder;

public class SyncContext {
    private ISyncContext mSyncContext;
    private long mLastHeartbeatSendTime;

    private static final long HEARTBEAT_SEND_INTERVAL_IN_MS = 1000;

    /**
     * @hide
     */
    public SyncContext(ISyncContext syncContextInterface) {
        mSyncContext = syncContextInterface;
        mLastHeartbeatSendTime = 0;
    }

    /**
     * Call to update the status text for this sync. This internally invokes
     * {@link #updateHeartbeat}, so it also takes the place of a call to that.
     *
     * @param message the current status message for this sync
     *
     * @hide
     */
    public void setStatusText(String message) {
        updateHeartbeat();
    }

    /**
     * Call to indicate that the SyncAdapter is making progress. E.g., if this SyncAdapter
     * downloads or sends records to/from the server, this may be called after each record
     * is downloaded or uploaded.
     */
    private void updateHeartbeat() {
        final long now = SystemClock.elapsedRealtime();
        if (now < mLastHeartbeatSendTime + HEARTBEAT_SEND_INTERVAL_IN_MS) return;
        try {
            mLastHeartbeatSendTime = now;
            if (mSyncContext != null) {
                mSyncContext.sendHeartbeat();
            }
        } catch (RemoteException e) {
            // this should never happen
        }
    }

    public void onFinished(SyncResult result) {
        try {
            if (mSyncContext != null) {
                mSyncContext.onFinished(result);
            }
        } catch (RemoteException e) {
            // this should never happen
        }
    }

    public IBinder getSyncContextBinder() {
        return (mSyncContext == null) ? null : mSyncContext.asBinder();
    }
}

Other Android examples (source code examples)

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

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