I have got C2DM setup and working. It also sends the users ID to my server so I can then send messages to it. However I am struggling updating the UI alerting the user with the status of their registration. The problem I have is that the registration is handled in a class which is not an activity, so I am struggling to figure out how to alert the user.
I have a class ‘RegistrationScreen’ which has the following:
import android.app.Activity;
import android.app.Dialog;
import android.app.PendingIntent;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
public class RegistrationScreen extends Activity {
public static int status;
public static String userID;
public static String regPass;
public static int bankID=201;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.registrationscreen);
Button btn1 = (Button)findViewById(R.id.registerSubmitButton);
btn1.setOnClickListener(new OnClickListener()
{
@Override
public void onClick(View arg0) {
//Get data from form
final EditText userIdText = (EditText) findViewById(R.id.userID);
userID = userIdText.getText().toString();
final EditText userPasswordText = (EditText) findViewById(R.id.userPassword);
regPass = userPasswordText.getText().toString();
register();
}
});
}
protected Dialog onCreateDialog(int id) {
switch (id) {
case 0:
Dialog superSimpleDlg = new Dialog(this);
superSimpleDlg.setTitle("blah");
return superSimpleDlg;
}
return null;
}
private void register() {
status=1; //1= being processed
String emailOfSender ="*removed*";
Intent registrationIntent = new Intent("com.google.android.c2dm.intent.REGISTER");
registrationIntent.putExtra("app", PendingIntent.getBroadcast(this, 0, new Intent(), 0)); // boilerplate
registrationIntent.putExtra("sender", emailOfSender);
startService(registrationIntent);
// while(status==1){
//
// }
showDialog(0);
//TODO Show "Registering..." dialogue???
}
}
This is successfully invoking the registration process. However I would like to show a “processing dialog” whilst it is going through the registration process and a “confirmation dialogue” when it has successfully registered.
I have another class ‘C2DMReceiver’ which handles the registration with the google servers and also uses sockets to register onto my own servers.
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences.Editor;
import android.os.Bundle;
import android.util.Log;
public class C2DMReceiver extends BroadcastReceiver {
private static String KEY = "c2dmPref";
private static String REGISTRATION_KEY = "registrationKey";
private Context context;
@Override
public void onReceive(Context context, Intent intent) {
this.context = context;
if (intent.getAction().equals("com.google.android.c2dm.intent.REGISTRATION")) {
handleRegistration(context, intent);
} else if (intent.getAction().equals("com.google.android.c2dm.intent.RECEIVE")) {
handleMessage(context, intent);
}
}
private void handleRegistration(Context context, Intent intent) {
String registration = intent.getStringExtra("registration_id");
if (intent.getStringExtra("error") != null) {
// Registration failed, should try again later.
Log.d("c2dm", "registration failed");
String error = intent.getStringExtra("error");
if(error == "SERVICE_NOT_AVAILABLE"){
Log.d("c2dm", "SERVICE_NOT_AVAILABLE");
}else if(error == "ACCOUNT_MISSING"){
Log.d("c2dm", "ACCOUNT_MISSING");
}else if(error == "AUTHENTICATION_FAILED"){
Log.d("c2dm", "AUTHENTICATION_FAILED");
}else if(error == "TOO_MANY_REGISTRATIONS"){
Log.d("c2dm", "TOO_MANY_REGISTRATIONS");
}else if(error == "INVALID_SENDER"){
Log.d("c2dm", "INVALID_SENDER");
}else if(error == "PHONE_REGISTRATION_ERROR"){
Log.d("c2dm", "PHONE_REGISTRATION_ERROR");
}
} else if (intent.getStringExtra("unregistered") != null) {
// unregistration done, new messages from the authorized sender will be rejected
Log.d("c2dm", "unregistered");
} else if (registration != null) {
Log.d("c2dm", registration);
Editor editor =
context.getSharedPreferences(KEY, Context.MODE_PRIVATE).edit();
editor.putString(REGISTRATION_KEY, registration);
editor.commit();
registerWithServer(registration);
// Send the registration ID to the 3rd party site that is sending the messages.
// This should be done in a separate thread.
// When done, remember that all registration is done.
}
}
private void handleMessage(Context context, Intent intent)
{
Bundle extras = intent.getExtras();
if (extras != null) {
// String blah = (String) extras.get("POSTFIELDS");
Log.d("c2dm", "recieved: "+extras.getString("message"));
}
}
private void registerWithServer(String c2dmID) {
String hostname = "10.0.2.2";
int port = 54321;
socketClient client = new socketClient(hostname, port);
String message = client.sendMessage("registerRSA|c2dmID="+c2dmID+",userID="+RegistrationScreen.userID+",bankID="+RegistrationScreen.bankID+",passcode="+RegistrationScreen.regPass+",deviceID=njfdfdsj389rfb,timestamp=00000,");
Log.v("SOCKETCLIENT",message);
//Do actions on input string
String tokens[] = message.split("\\|");
System.out.println(tokens[0]);
//
if (tokens[0].equals("success")) {
RegistrationScreen.status=100;
} else if (tokens[0].equals("error")) {
int errorID = 0;
String friendlyErrorMessage = null;
//Split the , then the =
String variables[] = tokens[1].split(",");
for (int i=0; i<variables.length; i++) {
String tempSplit[] = variables[i].split("=");
if (tempSplit[0].equals("errorID")) {
errorID=Integer.parseInt(tempSplit[1]);
} else if (tempSplit[0].equals("friendlyErrorMessage")) {
friendlyErrorMessage=tempSplit[1];
}
}
//Update UI to alert of error
//TextView textViewToChange = (TextView) findViewById(R.id.registerTextHeader);
//textViewToChange.setText("Error getting seed! (ERR" + errorID + ") " + friendlyErrorMessage);
RegistrationScreen.status=200;
} else {
RegistrationScreen.status=300;
//unknown problem
}
}
}
As you can see I have tried to achieve it using a while loop checking a ‘status’ variable, however this causes the program to hang and doesn’t seem like very efficient programming.
You can use the SharedPreferenceListener in this case.
Once the user registration is successful, try this one:
Once the user unregister is successful, try this one:
And in your activity,
Create a textview (or something of your preference. I’m using textview in this example).
You can put this code somewhere in OnCreate();
Hope This Helps…