Sample App (4/7) Shows the album in a different activity Click on a track for immediate 941172四 Moonlight Sonata playback o Click adds it to the task bar o Launches a service to play Moonlight Sonata Click on the back button to return to the previous activity Allegretto o Android maintains a stack of activities for“back"” geomo I ⊙ 与 Refer to: http://developer.android.com/guide/components/tasks-and-back-stack.html 6Sample App (4/7) • Shows the album in a different activity • Click on a track for immediate playback o Click adds it to the task bar o Launches a service to play • Click on the back button to return to the previous activity o Android maintains a stack of activities for “back” 6 Refer to: http://developer.android.com/guide/components/tasks-and-back-stack.html