Broadcast Receivers listen for push notifications. When a message is received, Service is started which are responsible for showing the notification as UI. Deve

Broadcast Receivers listen for push notifications. When a message is received, Service is started which are responsible for showing the notification as UI. Developers can rely on SDKs to take care of this for them but the steps are still the same. The article points out a behaviour in some devices where the services do not get started because the stock ROM blocks the app. This in turn blocks the showing of the notification as UI.