G no main funcon essenal components that the system

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Unformatted text preview: applica,on can make use of elements of other applica,ons –  Applica,ons are composed of parts (components) that can be started up when the need arises, and instan,ate the Java objects for that part –  Android applica,ons do not have a single entry point (e.g. no main() func,on). –  Essen,al components that the system can instan,ate and run as needed COMP 4521 (Muppala) Android Overview 4 Applica,on Components •  Four basic components: Ac,vi,es, Services, Broadcast Receivers, Content Providers Ac,vi,es Services Applica,on Components Broadcast Receivers COMP 4521 (Muppala) Content Providers Android Overview 5 Ac,vity •  An ac,vity is visual UI for one endeavour the user can undertake: –  Extends the Activity base class –  Displays user interface controls...
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This document was uploaded on 03/12/2014.

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