I have implemented push notification using GCM for my android app. Now i am getting the notification for all the registered device. But I am confused when should I unregistered my device.
MainActivity.java
public class DemoActivity extends Activity {
TextView mDisplay;
private String TAG = "** Demo Activity Push **";
public final String SOAP_ACTION4 = "http://tempuri.org/InsertDeviceID";
public final String OPERATION_NAME4 = "InsertDeviceID";
public final String WSDL_TARGET_NAMESPACE4 = "http://tempuri.org/";
public final String SOAP_ADDRESS4 = "http://www.icecup.com/iphonews/pushnotification.asmx";
String regId ;
String receivedString;
String delreceivedString;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
checkNotNull(SENDER_ID, "SENDER_ID");
GCMRegistrar.checkDevice(getApplicationContext());
GCMRegistrar.checkManifest(getApplicationContext());
setContentView(R.layout.main);
mDisplay = (TextView) findViewById(R.id.display);
regId = GCMRegistrar.getRegistrationId(getApplicationContext());
if (regId.equals("")) {
// Automatically registers application on startup.
GCMRegistrar.register(getApplicationContext(), SENDER_ID);
} else {
Log.v(TAG, "Already registered");
}
mDisplay.setText("ffffff "+regId);
// setDeviceRegId(regId);
// new MovieDetails().execute(regId);
try {
Class.forName("android.os.AsyncTask");
} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public class MovieDetails extends AsyncTask<String, Void, Void> {
@Override
protected Void doInBackground(String... params) {
String parregid= params[0];
Log.d("DEVICE REG ID", parregid);
SoapObject request99 = new SoapObject(WSDL_TARGET_NAMESPACE4,OPERATION_NAME4);
request99.addProperty("DeviceId",parregid);
System.out.println("I AM ALIVE 1");
SoapSerializationEnvelope envelope99 = new SoapSerializationEnvelope(
SoapEnvelope.VER11);
envelope99.dotNet = true;
envelope99.setOutputSoapObject(request99);
System.out.println("I AM ALIVE 2");
HttpTransportSE httpTransport99 = new HttpTransportSE(SOAP_ADDRESS4);
System.out.println("I AM ALIVE 3");
SoapPrimitive response=null;
try {
httpTransport99.call(SOAP_ACTION4, envelope99);
System.out.println("I AM ALIVE 4");
response = (SoapPrimitive) envelope99.getResponse();
System.out.println("I AM ALIVE 5");
System.out.println("RESPONSE IS: "+response.toString());
receivedString=response.toString();
} catch (Exception e) {
}
return null;
}
@Override
protected void onCancelled()
{
super.onCancelled();
}
@Override
protected void onPreExecute() {
System.out.println("I AM ALIVE 0");
}
@Override
protected void onPostExecute( Void result) {
System.out.println(" RESPONSE "+receivedString);
super.onPostExecute(result);
}
}
private final BroadcastReceiver mHandleMessageReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String newMessage = intent.getExtras().getString("message");
// Waking up mobile if it is sleeping
WakeLocker.acquire(getApplicationContext());
mDisplay.append(newMessage + "\n");
Toast.makeText(getApplicationContext(), "New Message: " + newMessage, Toast.LENGTH_LONG).show();
WakeLocker.release();
}
};
@Override
protected void onDestroy() {
try {
unregisterReceiver(mHandleMessageReceiver);
GCMRegistrar.onDestroy(getApplicationContext());
} catch (Exception e) {
Log.e("UnRegister Receiver Error", "> " + e.getMessage());
}
super.onDestroy();
}
private void checkNotNull(Object reference, String name) {
if (reference == null) {
throw new NullPointerException(
getString(R.string.error_config, name));
}
}
}
This is my main activity. Tell me where should I call GCM.Unregister(this) . Because if someone uninstall the app, for that registration id GCM server sends response NotRegistered to 3rd party server. So keeping that in mind I was thinking to unregister the device.
GCMIntentService.java
public class GCMIntentService extends GCMBaseIntentService {
private static final String TAG = "GCMIntentService";
String installregids = "";
String uninstallregids = "";
DemoActivity dact= new DemoActivity();
public GCMIntentService() {
super(SENDER_ID);
}
@Override
protected void onRegistered(Context context, String registrationId) {
Log.i(TAG, "Device registered: regId = " + registrationId);
this.installregids=registrationId;
try {
dact.new MovieDetails().execute(registrationId);
GCMRegistrar.setRegisteredOnServer(context, true);
}
catch (Exception e) {
e.printStackTrace();
}
}
@Override
protected void onUnregistered(Context context, String registrationId) {
Log.i(TAG, "Device unregistered");
this.uninstallregids=registrationId;
try {
if (GCMRegistrar.isRegisteredOnServer(context)) {
// dact.new MessgaeDelete().execute(registrationId);
} else {
Log.i(TAG, "Ignoring unregister callback");
}
GCMRegistrar.setRegisteredOnServer(context, false);
}
catch (Exception e) {
e.printStackTrace();
}
}
@Override
protected void onMessage(Context context, Intent intent) {
Log.i(TAG, "Received message");
// String message = getString(R.string.gcm_message);
String message = intent.getExtras().getString("message");
Log.d("Message Received", message);
generateNotification(context, message);
}
}
@Override
protected boolean onRecoverableError(Context context, String errorId) {
// log message
Log.i(TAG, "Received recoverable error: " + errorId);
return super.onRecoverableError(context, errorId);
}
private static void generateNotification(Context context, String message) {
int icon = R.drawable.ic_stat_gcm;
long when = System.currentTimeMillis();
NotificationManager notificationManager = (NotificationManager)
context.getSystemService(Context.NOTIFICATION_SERVICE);
Notification notification = new Notification(icon, message, when);
String title = context.getString(R.string.app_name);
Intent notificationIntent = new Intent(context, DemoActivity.class);
// set intent so it does not start a new activity
notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP |
Intent.FLAG_ACTIVITY_SINGLE_TOP);
PendingIntent intent =
PendingIntent.getActivity(context, 0, notificationIntent, 0);
notification.setLatestEventInfo(context, title, message, intent);
notification.flags |= Notification.FLAG_AUTO_CANCEL;
notificationManager.notify(0, notification);
}
}
Please help me to resolve this problem.
You normally don’t call
GCMRegistrar.unregister(). You are automatically “unregistered” if you uninstall the application.Purpose of this method is in my opinion solely to allow explicit deregistering from within the application. For example if the user has the possibility to turn auto sync completely off there is no need to be registered.
You can also not be notified about the fact that the app is being uninstalled. The app will never notice since there is no such thing like “preUninstall” or such.