Android c2dm在取消注册时从mysql中删除记录

有人知道一旦设备从c2dm注销，我如何从mysql数据库中删除吗？ 我的主要活动包括：

public void unregister (View view){
        Log.w("C2DM", "start unregister process");
        Intent unregIntent = new Intent("com.google.android.c2dm.intent.UNREGISTER");
        unregIntent.putExtra("app", PendingIntent.getBroadcast(this, 0, new Intent(), 0));

Toast.makeText(getApplicationContext(), "unregistered", Toast.LENGTH_LONG).show();

        startService(unregIntent);

if ("com.google.android.c2dm.intent.REGISTRATION".equals(action)) {

现在我的问题来了。当我注册时，我将设备id和注册id输入到我的mysql数据库中（这是有效的），我想在单击“取消注册”后删除它

if ("com.google.android.c2dm.intent.REGISTRATION".equals(action)) {

在我的注册接收者范围内

public void onReceive(Context context, Intent intent) {
        String action = intent.getAction();
        Log.w("C2DM", "Registration Receiver called");
        if ("com.google.android.c2dm.intent.REGISTRATION".equals(action)) {
            Log.w("C2DM", "Received registration ID");
            final String registrationId = intent
                    .getStringExtra("registration_id");
            String error = intent.getStringExtra("error");

            Log.d("C2DM", "dmControl: registrationId = " + registrationId
                    + ", error = " + error);
            String deviceId = Secure.getString(context.getContentResolver(),
                    Secure.ANDROID_ID);
            createNotification(context, registrationId);
            sendRegistrationIdToServer(deviceId, registrationId);
            // Also save it in the preference to be able to show it later
            saveRegistrationId(context, registrationId);}

if ("com.google.android.c2dm.intent.REGISTRATION".equals(action)) {

sendRegistrationIdToServer是：

public void sendRegistrationIdToServer(String deviceId, String registrationId) {
        Log.d("C2DM", "Sending registration ID to my application server");
        HttpClient client = new DefaultHttpClient();
        HttpPost post = new HttpPost("http://myserver.com/Sandbox/androidDevice.php");
        try {
            List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(1);
            // Get the deviceID
            nameValuePairs.add(new BasicNameValuePair("Email", deviceId));
            nameValuePairs.add(new BasicNameValuePair("DeviceID",   registrationId));

            post.setEntity(new UrlEncodedFormEntity(nameValuePairs));
            HttpResponse response = client.execute(post);
            BufferedReader rd = new BufferedReader(new InputStreamReader(
                    response.getEntity().getContent()));

            String line = "";
            while ((line = rd.readLine()) != null) {
                Log.e("HttpResponse", line);
            }
        } catch (IOException e) {
            e.printStackTrace();
        }

if ("com.google.android.c2dm.intent.REGISTRATION".equals(action)) {

（我有什么意义吗？）

---

如能一如既往地提供帮助，我们将不胜感激。

是的，您可以执行

取消注册

意图操作。有关更多信息，请参阅

if ("com.google.android.c2dm.intent.REGISTRATION".equals(action)) {