Big Picture Option - andrehtissot/cordova-plugin-firebase-extended-notification-app-example GitHub Wiki

To show a picture at the end of a notification, use the bigPicture option.

Results may vary due to Android versions and UI differences like below.

Nougat (7.1)

When closed:

Nougat closed

When opened:

Nougat opened

Marshmallow (6.0 Galaxy UI)

When closed:

Nougat closed

When opened:

Nougat opened