BroadcastReceiver

MeuBroadcast.java

package br.com.heiderlopes.democomponentesandroid.broadcast;

import android.app.NotificationManager;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.NotificationCompat;
import android.telephony.TelephonyManager;
import android.util.Log;

import br.com.heiderlopes.democomponentesandroid.R;

public class MeuBroadCast extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        Bundle extras = intent.getExtras();
        if (extras != null) {

            String state = extras.getString(TelephonyManager.EXTRA_STATE);
            Log.w("MY_DEBUG_TAG", state);

            if (state.equals(TelephonyManager.EXTRA_STATE_RINGING)) {

                NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);

                NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(context);

                String phoneNumber = extras
                        .getString(TelephonyManager.EXTRA_INCOMING_NUMBER);

                mBuilder.setContentTitle("Ligacao");

                mBuilder.setContentText(phoneNumber);
                mBuilder.setTicker("Você esta recebendo uma ligacao");
                mBuilder.setSmallIcon(R.mipmap.ic_launcher);

                notificationManager.notify(100, mBuilder.build());


                Log.w("MY_DEBUG_TAG", phoneNumber);
            }
        }
    }
}