L_2_17_Android_Application_Fundamentals

Applicaons can also iniate broadcasts eg to let other

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Unformatted text preview: t;ac,on android:name="android.intent.acLon.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent- filter> </ac,vity> <ac,vity android:name="hkust.comp4521.helloandroid.MainAcLvity" android:label="@string/app_name" > </ac,vity> </applica,on> COMP 4521 (Muppala) Android Overview </manifest> 8 Service •  A service runs in the background for an indefinite period ,me. –  Example: play music, network download, etc –  Does not have a user interface –  extends the Service base class. •  We can bind to a running service (or start the service if it's not already running) COMP 4521 (Muppala) Android Overview 9 Broadcast Receivers •  Receives and reacts to broadcast announcements (Intents) –  Many broadcasts originate in system code. –  E.g. announcements that a picture is taken, that the ,me zone has changed, that the ba4ery...
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This document was uploaded on 03/12/2014.

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