View
227
Download
1
Category
Preview:
Citation preview
Sathish.R
o Introduction About
Android.
o IDE Introduction.
o Setting Up
Environment.
o Dalvik Virtual
Machine.
Android
Introduction
Session 2
2
Tenet Technetronics
13 November, 2013
o Introduction About
Android.
Android
Introduction
Session 2
3
Tenet Technetronics
13 November, 2013
What is Android? o Operating system based on Linux.
o Open Source by Search Giant.
o Apps typically written in Java.
o Apps run on the Dalvik Virtual Machine(DVM).
o November 2007, Open Handset Alliance formed to develop open standards for mobile devices.
Open Handset Alliance:
o Google formed a group of hardware, software, and
telecommunication companies with the goal of
contributing to Android development
4
Tenet Technetronics
13 November, 2013
Android
5
Tenet Technetronics
13 November, 2013
History
o Android Inc. was founded by Andy Rubin, Rich miner, Nick
sears and Chris White in 2003.
o Acquired by Google in July 2005.
o The first android phone was HTC G1 Dream(with cupcake)
Released in October 2008.
6
Tenet Technetronics
13 November, 2013
Android Evolution 7
Tenet Technetronics
13 November, 2013
Android Features o Open Source framework
o Very simple.
o Availability of Apps.
o Supports 2D,3D graphics.
o Java support.
o Easy to customize.
o Better Notification System(email and various widgets).
o SQLite Database.
o Bluetooth, EDGE,3G,4G and Wi-Fi .
o Camera ,GPS,Compass, and accelerometer.
8
Tenet Technetronics
13 November, 2013
9
Framework 13 November, 2013
Tenet Technetronics
10
Application Components
Activities – visual user interface focused on a single thing a user can do
Services – no visual interface – they run in the background
Broadcast Receivers – receive and react to broadcast announcements
Content Providers – allow data exchange between applications
13 November, 2013
Tenet Technetronics
o Introduction About
Android.
o IDE Introduction.
Android
Introduction
Session 2
11
Tenet Technetronics
13 November, 2013
IDE: (Integrated
Development Environment) o Programming Environment that consists of
A Code Editor,
A compiler,
A Debugger,
A GUI builder.
o User-Friendly Framework.
o Eclipse, Net beans, Android Studio, Processing, Xamarin Studio, etc.,
12
Tenet Technetronics
13 November, 2013
o Introduction About Android.
o IDE Introduction.
o Setting Up
Environment.
Android
Introduction
Session 2
13
Tenet Technetronics
13 November, 2013
Development Tools:
o Java JDK.
o Eclipse or Net beans.
o Android Development Tools(ADT Plugin).
o Android latest SDK
o Programming Languages
Java
14
Tenet Technetronics
13 November, 2013
o Run Eclipse.chm file and proceed with the
instructions
15
Installation
Tenet Technetronics
13 November, 2013
o Introduction About
Android.
o IDE Introduction.
o Setting Up
Environment.
o Dalvik Virtual
Machine.
Android
Introduction
Session 2
16
Tenet Technetronics
13 November, 2013
Dalvik Virtual Machine o Java-” write once, run anywhere”.
o Software that runs the apps on Android devices.
o Invented by Dan Bornstein(Google).
o Register-based.
o A tool called dx is used to convert some (but not all) Java .class files into the .dex (Dalvik Executable)format.
Tenet Technetronics
17 13 November, 2013
DVM
o run on a slow CPU
o Multiple classes are included in a single
.dex file.
Tenet Technetronics
18
source code Java compiler dx
(conversion tool) .class file
.dex file (Dalvik
executable)
13 November, 2013
19
o First Application (Hello World)
o Layouts & Drawables
o Activity Navigation
o View Group & Views
o Manifest & Permissions
o Menus & Tabs
Tenet Technetronics
Applications
13 November, 2013
20
o First Application (Hello World)
o Layouts & Drawables
o Activity Navigation
o View Group & Views
o Manifest & Permissions
o Menus & Tabs
Tenet Technetronics
Applications
13 November, 2013
Select File -> New -> Other -> Android -> Android Project
13 November, 2013
Tenet Technetronics
21
Tenet Technetronics
13 November, 2013 22
Tenet Technetronics
13 November, 2013 23
Tenet Technetronics
13 November, 2013 24
Tenet Technetronics
13 November, 2013 25
Tenet Technetronics
13 November, 2013 26
27
o First Application (Hello World)
o Layouts & Drawables
o Activity Navigation
o View Group & Views
o Manifest & Permissions
o Menus & Tabs
Tenet Technetronics
Applications
13 November, 2013
Layouts
o Linear Layout
o Relative Layout
o Frame Layout
o Table Layout
Tenet Technetronics
28 13 November, 2013
Linear Layout
oAll the elements are displayed in a linear
fashion
oHorizontally or Vertically
Tenet Technetronics
29 13 November, 2013
Relative Layout
o Designed to display child View controls in relation to each other
o Every element arranges itself relative to other elements or a parent element.
Tenet Technetronics
30 13 November, 2013
Table Layout
o Designed to organize
child View controls into rows and columns.
o Divide your layouts
into rows and columns.
Tenet Technetronics
31 13 November, 2013
Frame Layout oDisplay only a single UI
element at a time, or multiple
UI elements within Frame
Layout
oEach element will be
positioned based on the top
left of the screen.
Tenet Technetronics
32 13 November, 2013
Drawables
o referencing an image
file from your project
resources.
o Supported file types are
PNG and JPG.
o Background image for
Layout, button, etc..
Tenet Technetronics
33 13 November, 2013
34
o First Application (Hello World)
o Layouts & Drawables
o Activity Navigation
o View Group & Views
o Manifest & Permissions
o Menus & Tabs
Tenet Technetronics
Applications
13 November, 2013
Activity Navigation
o Moving From one Activity to another.
o Pass values from one activity to another
Activity (Intents).
o Example.
Tenet Technetronics
35 13 November, 2013
36
o First Application (Hello World)
o Layouts & Drawables
o Activity Navigation
o View Group & Views
o Manifest & Permissions
o Menus & Tabs
Tenet Technetronics
Applications
13 November, 2013
Views And View Groups
we can declare the layout in two ways:
o Programmatically
o Declaring the widgets or UI elements in
XML.
The layout consists of Views and View
Groups.
Tenet Technetronics
37 13 November, 2013
View Groups
o Layouts are called View groups
o In which the child Views or View Groups
are arranged either vertically or
horizontally.
o Example
Tenet Technetronics
38 13 November, 2013
39
o First Application (Hello World)
o Layouts & Drawables
o Activity Navigation
o View Group & Views
o Manifest & Permissions
o Menus & Tabs
Tenet Technetronics
Applications
13 November, 2013
Manifest and Permissions o A resource file which contains all the details
needed by the android system about the
application.
o This is an xml file which must be named as
AndroidManifest.xml and placed at application
root.
Tenet Technetronics
40 13 November, 2013
Android Manifest It allows us to define
o The packages, API, libraries needed for the application.
o Basic building blocks of application like activities, services and etc.
o Details about permissions.
o Set of classes needed before launch.
Tenet Technetronics
41 13 November, 2013
Elements of AndroidManifest.xml o uses-permission
o permission
o permission-group
o permission-tree
o Instrumentation
o uses-sdk
o uses-configuration
o uses-feature
o supports-screens, compatible-screens
o supports-gl-texture
Tenet Technetronics
42 13 November, 2013
Elements of Manifest o uses-permission purpose of security.
o permission Access Control.
o uses- sdk the platform compatibility.
o uses-configuration set of hardware and software requirement.
o supports-screens,
and compatible-screens screen configuration mode and size of the screen
Tenet Technetronics
43 13 November, 2013
Example
Tenet Technetronics
44 13 November, 2013
45
o First Application (Hello World)
o Layouts & Drawables
o Activity Navigation
o View Group & Views
o Manifest & Permissions
o Menus & Tabs
Tenet Technetronics
Applications
13 November, 2013
Menu o A common user interface component in
many types of applications.
o Interface for managing the items in a menu.
o If you're developing for Android 2.3 or lower, users can reveal the options menu panel by pressing the Menu button.
Tenet Technetronics
46 13 November, 2013
Menu
o Context menus a floating list of menu items that appears when a user
touches and holds a particular item displayed in the view
o Options menus the one that appears when a user touches the menu
button on the mobile.
o Sub menus a floating list of menu items that appears when the user
touches a menu item that contains a nested menu
Tenet Technetronics
47 13 November, 2013
Tabs o A nice way to present multiple
thing on a Single Screen
o Tabs in the action bar make it easy to explore and switch between different views or functional aspects.
o Example
Tenet Technetronics
48 13 November, 2013
Tenet Technetronics
49 13 November, 2013
Tenet Technetronics
50 13 November, 2013
Recommended