Heads up notification do not work sometimes

Question

I make a head up notification this way:

Notification.Builder nb = new Notification.Builder(context)
        .setSmallIcon(icon)
        .setContentTitle(\"Ti         


        

Answer 1

Heads up notifications have a built in rate limiting - if the user swipes your heads up notification up (putting it back into the notification tray) or to the side (dismissing it), then that signals the system to prevent further heads up notifications for some period of time (~a minute by default).