Android定義了四種不同類型的程式組件(Component)-Activity組件、Service組件、Broadcast Receiver組件、及Content Provider組件。這些不同類型的組件是構成Android應用程式最基本的單元。本論文探討說明這四種組件的架構、特性、使用場合及用法並且使用Android手機作為client端設備,設計並實作了一個應用系統。
Android system defines four different application components of which an android application is made up. This paper surveys the framework, characteristics and usage of these four basic components including Activity component, Service component, Broadcast Receiver component and Content Provider component. This paper also, using Android mobile phone as client-end device, designs and implements an application system.