android fundamentals - basic concept
DESCRIPTION
Android Applications are Collections of reusable components. An Android App may have multiple entry points, and may use components from other applications. In Android, the flow of user interaction across one or more applications is called a “Task.”www.apextgi.inTRANSCRIPT
-
Android Fundamentals Basic Concept
facebook.com/apex.tgi
twitter.com/ApextgiNoida
pinterest.com/apextgi
-
Fundamentals
Android Applications are Collections of reusable components.
An Android App may have multiple entry points, and may use components from other applications.
In Android, the flow of user interaction across one or more applications is called a Task.
-
Task
A user views a list of messages in a Messaging App
They tap a message on the list to view that particular message
They then tap [View Contact], which opens the Contacts App
Then they call the contact, which opens the Phone App.
The user views all of this as a Single Task, even though it spans multiple applications.
-
Android Building Blocks
Activity
Service
Content Provider
Broadcast Receiver
-
Android Building Blocks
Activity
A unit of User Interface interaction.
Service
A background task that may be active but is not visible on the screen.
Broadcast Receiver
performs an action in response to a message (Intent) from some other component.
-
Android Building Blocks
Content Provider
An object used to work with data.
Exposes methods to create, read, update, and delete data.
Accessed via a URI.
Analogous to aRESTfulweb service.
-
Android Intent
An Intent is an object that describes some function that one activity requests some other activity to perform.
Android App can describe multiple intents, the system is responsible for finding Activities that match each intent.
Android activities are loosely coupled and they are joined by Intents.
-
Android Intent
A Activity is registered themselves to respond to several intents.
An activity in an app can respond to an Intent sent from some other android app.
Unlike traditional Android applications tasks are controlled via Intents (messages from one component to another) dont
needcallbackmethods to control the program flow.
-
http://www.apextgi.in
Thank YouApex TG India
E-20 , Sector 63, Noida
0120 4029000/9024/9025/9027
+91-9953584548
Email id: [email protected] Connected with us for more PPT on Android
Slide 1FundamentalsTaskAndroid Building BlocksAndroid Building BlocksAndroid Building BlocksAndroid IntentAndroid IntentThank You