App Components Application=Set of Android Components Activity 。 Ul Component typically correspo one screen. BroadcastReceiver Responds to notifications or statu changes.Can wake up your proc Intent Service Faceless task that runs in th background. ContentProvider Enable applications to shar App Components Application= Set of Android Components • UI Component typically corresponding to Activity one screen. • Responds to notifications or status changes. Can wake up your process. BroadcastReceiver • Faceless task that runs in the background. Service ContentProvider • Enable applications to share data. Intent