Status bar notification click event Android for background foreground app state

Question

on click of a status bar notification. i want to check that if my app is in foreground state then only notification will cancel or if my app is in background state it will open my app. i have managed my app state using this code in my application class

public static boolean isActivityVisible() {
    return activityVisible;
}

public static void activityResumed() {
    activityVisible = true;
}

public static void activityPaused() {
    activityVisible = false;
}

private static boolean activityVisible;

and putting these for all my activities

@Override
protected void onResume() {
  super.onResume();
  MyApplication.activityResumed();
}

@Override
protected void onPause() {
  super.onPause();
  MyApplication.activityPaused();
}

for notification i am using this code

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

        Notification notification = new Notification.Builder(context)
                .setContentTitle(title).setContentText(message)
                .setSmallIcon(R.drawable.ic_on).build();

        Intent notificationIntent = new Intent(context,
                AppStartActivty.class);
        notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP
                | Intent.FLAG_ACTIVITY_SINGLE_TOP);
        PendingIntent intent = PendingIntent.getActivity(context, 0,
                notificationIntent, 0);
        notification.flags |= Notification.FLAG_AUTO_CANCEL;

        notification.defaults |= Notification.DEFAULT_SOUND;

        notification.defaults |= Notification.DEFAULT_VIBRATE;
        notificationManager.notify(0, notification);

where shod i put this condition to check that app state and notification click behaviour. sorry for my bad inglish

Answer 1

You can check whether your app is in Background/foreground using below code.

ActivityManager activityManager = (ActivityManager)this.getSystemService(Context.ACTIVITY_SERVICE);
            ArrayList<ActivityManager.RunningAppProcessInfo> appInfo = (ArrayList)activityManager.getRunningAppProcesses();
            for (ActivityManager.RunningAppProcessInfo app : appInfo) {
                Log.d(TAG, "App: " + app.processName + "    State: " + (app.importance == 100 ? "Foreground" : "Background"));
                if (app.processName.equals(YourApp().getPackageName())) {
                    Log.d(TAG, app.processName);
                    if (app.importance == ActivityManager.RunningAppProcessInfo.IMPORTANCE_FOREGROUND) {
                       // Cancel notification
                    }
                    break;
                }
            }