The Android Design guide on notifications is quite good as well, with tips like prefer ones that are time sensitive and have to do with other people: http://dev

The Android Design guide on notifications is quite good as well, with tips like prefer ones that are time sensitive and have to do with other people: http://developer.android.com/design/patterns/notifications.html http://developer.android.com/design/patterns/notifications.h... Android notifications can be triggered by push messages, but also just system alarms that trigger the app at certain times and other events the app listens for.