Question

I have an app that replies to any received SMS with a default message. The app works, however it also works when I close the app. Is there anyway I can un-override the onReceive method for BroadcastReceiver, so that once I close the app, it won’t use my version of the onReceieve method? If not, what’s the best way to fix this problem?

//SMS.java
package net.learn2develop.SMSMessaging;

import net.learn2develop.SMSMessaging.R;
import android.app.Activity;
import android.app.PendingIntent;
import android.content.Intent;
import android.os.Bundle;
import android.telephony.SmsManager;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;

public class SMS extends Activity 
{
    Button btnExit;
    static EditText txtMessage;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) 
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);        

        btnExit = (Button) findViewById(R.id.btnExit);
        txtMessage = (EditText) findViewById(R.id.txtMessage);

        btnExit.setOnClickListener(new View.OnClickListener() 
        {
            public void onClick(View v) 
            {                
                finish();
            }
        });        
    }    

    public static String getMessage(){
        return txtMessage.getText().toString();
    }
}
______________________________________________________________________________________
//SMSReceiver.java
package net.learn2develop.SMSMessaging;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.telephony.SmsManager;
import android.telephony.SmsMessage;
import android.widget.Toast;

public class SmsReceiver extends BroadcastReceiver
{
    @Override
    public void onReceive(Context context, Intent intent) 
    {
        //---get the SMS message passed in---
        Bundle bundle = intent.getExtras();        
        SmsMessage[] msgs = null;
        String str = "";            
        if (bundle != null)
        {
            //---retrieve the SMS message received---
            Object[] pdus = (Object[]) bundle.get("pdus");
            msgs = new SmsMessage[pdus.length];            
            for (int i=0; i<msgs.length; i++){
                msgs[i] = SmsMessage.createFromPdu((byte[])pdus[i]);                
                str += "SMS from " + msgs[i].getOriginatingAddress();                     
                str += " :";
                str += msgs[i].getMessageBody().toString();
                str += "\n";   
                sendSms(msgs[i].getOriginatingAddress(),SMS.getMessage());
            }
            //---display the new SMS message---
            Toast.makeText(context, str, Toast.LENGTH_SHORT).show();
        }         
    }
    private void sendSms(String phonenumber,String message)
    {
      SmsManager manager = SmsManager.getDefault();
      manager.sendTextMessage(phonenumber, null, message, null, null);
    }
}

Answer 1

I would just create a boolean which decides whether to execute your code or the super’s onRecieve method. Then just override the onPause method of the activity and toggle the boolean flag.