NotificationBroadcastReceiver.java

package com.ved.musicmapapp.receiver;

import java.util.List;

import com.ved.musicmapapp.MainActivity;

import android.app.ActivityManager;
import android.app.ActivityManager.RunningTaskInfo;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.os.Message;
import android.os.Messenger;
import android.os.RemoteException;

public class NotificationBroadcastReceiver extends BroadcastReceiver {
	private Messenger messenger = null;

	@Override
	public void onReceive(Context context, Intent intent) {
		String fbId = intent.getStringExtra("FOLLOW_FBID");
		if (fbId != null && fbId.length() > 0) {
			if (!isRunning(context)) {
				Intent notificationIntent = new Intent(context,
						MainActivity.class);
				notificationIntent.putExtra("FOLLOW_FBID", fbId);

				notificationIntent
						.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
				context.startActivity(notificationIntent);
			} else {
				if (messenger != null) {
					Message message = new Message();
					message.what = 2;
					Bundle data = new Bundle();
					data.putString("FOLLOW_FBID", fbId);
					message.setData(data);
					try {
						messenger.send(message);
					} catch (RemoteException e) {
						e.printStackTrace();
					}
				}
			}
		}

	}
	public void setMessenger(Messenger messenger) {
		this.messenger = messenger;
	}

	public boolean isRunning(Context context) {
		ActivityManager activityManager = (ActivityManager) context
				.getSystemService(Context.ACTIVITY_SERVICE);
		List<RunningTaskInfo> tasks = activityManager
				.getRunningTasks(Integer.MAX_VALUE);

		for (RunningTaskInfo task : tasks) {
			if (context.getPackageName().equalsIgnoreCase(
					task.baseActivity.getPackageName()))
				return true;
		}

		return false;
	}
}