Intent - if activity is running, bring it to front, else start a new one (from notification)

Question

My app has notifications, which - obviously - without any flags, start a new activity every time so I get multiple same activities running on top of each other, which is jus

Answer 1

I know it is old, but nothing from the above were fitting to my application.

Without changing manifests and other configuration, here is the code to bring your app back to front - or opening it when it is closed

Intent notificationIntent = context.getPackageManager().getLaunchIntentForPackage(context.getPackageName());
notificationIntent.setPackage(null); // The golden row !!!
notificationIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);