Show push notifications when application open/closed in different way

Question

In my app I\'ve a several Activities that inherit from one BaseActivity.
My application receive push notification with GCMBaseIntentService
I need to

Answer 1

It seems that PackageManager.queryBroadcastReceivers() returns all receivers declared in application manifests matching a given Intent.

Note however that this will not include receivers registered with Context.registerReceiver(); there is currently no way to get information about those.

You can use the following code in onReceive() to determine if the application/activity is running or not

ActivityManager am = (ActivityManager) getSystemService(ACTIVITY_SERVICE);
List<RunningTaskInfo> taskInfo = am.getRunningTasks(1);
Log.d("current task :", "CURRENT Activity ::" + taskInfo.get(0).topActivity.getClass().getSimpleName());
ComponentName componentInfo = taskInfo.get(0).topActivity;
if(componentInfo.getPackageName().equalsIgnoreCase("your.package.name")){
    //Activity in foreground, broadcast intent
} 
else{
    //Activity Not Running
    //Generate Notification
}

Answer 2

You can check whether application is in background or foreground using this code :

    public String isApplicationSentToBackground(final Context context) {
    ActivityManager am = (ActivityManager) context
            .getSystemService(Context.ACTIVITY_SERVICE);
    List<RunningTaskInfo> tasks = am.getRunningTasks(1);
    if (!tasks.isEmpty()) {
        ComponentName topActivity = tasks.get(0).topActivity;
        if (!topActivity.getPackageName().equals(context.getPackageName())) {
            return "false";
        }
    }

    return "true";
}

If it returns "true" then show notification else show dialog box.

When I debug the context.getPackageManager().queryBroadcastReceivers(pushReceivedIntent, 0).size() always equals to 0.

For this don't pass 0 in notify().Instead pass "Calendar.getInstance().getTimeInMillis()" value.This will show all the notifications based on time.

Hope this will help you.