Custom notification maximum height?

Question

I am trying to make a custom notification and it always ends up being pretty small (about the size of most notifications). I can see that Netflix and Youtube display much larger notifications which look custom (they might be big view) when casting to a chromecast device. How are they making them that large?

Thanks.

EDIT: Marked it as answered because of the comment pointing out bigContentView

Answer 1

You seem to already know... You're probably talking about big view style notifications. Google has specific training documentation as well as a technical guide for that. Here's some example code from there:

// Constructs the Builder object.
NotificationCompat.Builder builder =
        new NotificationCompat.Builder(this)
        .setSmallIcon(R.drawable.ic_stat_notification)
        .setContentTitle(getString(R.string.notification))
        .setContentText(getString(R.string.ping))
        .setDefaults(Notification.DEFAULT_ALL) // requires VIBRATE permission
        /*
         * Sets the big view "big text" style and supplies the
         * text (the user's reminder message) that will be displayed
         * in the detail area of the expanded notification.
         * These calls are ignored by the support library for
         * pre-4.1 devices.
         */
        .setStyle(new NotificationCompat.BigTextStyle()
                .bigText(msg))
        .addAction (R.drawable.ic_stat_dismiss,
                getString(R.string.dismiss), piDismiss)
        .addAction (R.drawable.ic_stat_snooze,
                getString(R.string.snooze), piSnooze);

Note the call to setStyle.