Pass the values from the BroadcastReceiver to an activity

Question

I have used the following code to get the phone number. I stored the number in a static variable. When I tried to use that variable in another activity, it throws NullPointer Exception.

package com.income;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.telephony.PhoneStateListener;
import android.telephony.TelephonyManager;
import android.util.Log;
import android.widget.Toast;

public class IncomingCallReceiver extends BroadcastReceiver {
    static String info = null;
    static String phonenumber;

    @Override
    public void onReceive(Context context, Intent intent) {
        // TODO Auto-generated method stub

        Bundle bundle = intent.getExtras();
        if (null == bundle)
            return;
        Log.i("IncomingCallReceiver", bundle.toString());
        String state = bundle.getString(TelephonyManager.EXTRA_STATE);
        Log.i("IncomingCallReceiver", "State: " + state);
        if (state.equalsIgnoreCase(TelephonyManager.EXTRA_STATE_RINGING)) {
            phonenumber = bundle
                    .getString(TelephonyManager.EXTRA_INCOMING_NUMBER);
            // String d=bundle.getString(TelephonyManager.EXTRA_STATE_IDLE)
            Log.i("IncomingCallReceiver", "Incomng Number: " + phonenumber);
            info = phonenumber;
        }
        if (state.equalsIgnoreCase(TelephonyManager.EXTRA_STATE_IDLE)) {
            Toast.makeText(context, info, Toast.LENGTH_LONG).show();
            Intent intent1 = new Intent(context, MissedCall.class);
            intent1.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            context.startActivity(intent1);
        }
    }

}

I used the static string in MissedCall activity. String or=IncomingCallReceiver.info; when I print or, it throws nullpointer exception. — Manikandan, Nov 18 '11 at 14:00

score 0 · Answer 1 · edited May 23 '17 at 10:24

0

Based on the fact that you are getting a NullPointerException this means that the bundle is null which makes the pone number be null.

I suggest you take a look on how to get the caller's phone number (here) like how it's done in this post.

EDIT

Well what I see is that you are never storing the phone number in the intent that starts the activity, so you will never get the phone number on said activity. Try using intent1.putExtra("phoneNumber", phoneNumber); now that the phone number in BroadcastReciever is not null, and retrieve it form MissedCall.class using intent.getExtras("phoneNumber"); where you are trying to get the number.

edited May 23 '17 at 10:24

Community

1
1

answered Nov 18 '11 at 14:12

Alvin Baena

903
1
10
24

thanks, I get the phonenumber, prints in the BroadcastReceiver itself and it get printed. – Manikandan Nov 18 '11 at 14:15
while I get it in the another activity, it wont. – Manikandan Nov 18 '11 at 14:18
I used that too. But same exception occurs. – Manikandan Nov 18 '11 at 14:40

score 0 · Answer 2 · answered Feb 17 '12 at 04:58

0

check your intent.putstring() method

answered Feb 17 '12 at 04:58

DineshKumar

1,641
15
13

Pass the values from the BroadcastReceiver to an activity

2 Answers2