[Android] Introduction to Android Programming

Android Programming

Lesson 1
Introduction

NGUYEN The Linh

Android Programming

Contents

1 Introduction to Android Programming

2 Getting Started

3 Programming Fundamentals

4 Exercise 1

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Android Programming

Introduction

Introduction to Android Programming

3

Android Programming

Overview

 What is Android?
 A free, open source mobile platform
 A Linux-based, multiprocessing, multithreaded OS
 It’s not even limited to phones - you could
a DVR, a handheld GPS, an MP3 player, etc.
 Android programming
 Based on Java
 Only one window
 Supporting different screen sizes
 Limited System Resources
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Android Programming

Overview

Android’s
versions

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Android Programming

Overview

 Android’s versions with their releasing date
 Android 1.5 Cupcake – Release Date: April 30, 2009
 Android 1.6 Donut - Release Date: September 15, 2009
 Android 2.0/2.1 Éclair – Release Date: October 26, 2009
 Android 2.2 Froyo – Release Date: May 20, 2010
 Android 2.3 Gingerbread - Release Date: December 6, 2010
 Android 3.0 Honeycomb - Release Date: February 22, 2011
 Android 4.0 Ice Cream Sandwich - Release Date: October 19,
2011
 Android 4.1 Jelly Bean - Release Date: July 9, 2012.
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Android Programming

Overview

 Features
 Integrated browser based on the open source WebKit engine
 Optimized graphics powered by a custom 2D graphics library;
3D graphics based on the OpenGL ES 1.0 specification
(hardware acceleration optional).
 SQLite for structured data storage
 Media support for common audio, video, and still image formats
(MPEG4, H.264, MP3, AAC, AMR, JPG, PNG, GIF)
 Bluetooth, EDGE, 3G, and Wi-Fi (hardware dependent)
 Camera, GPS, compass, and accelerometer (hardware
dependent)
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Android Programming

Overview

Android
Architecture

8

Android Programming

Overview
ADT

Android
Project

NDK
SDK

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Android Programming

Overview

 What is ADT?
 Android Development Tools (ADT) is a plugin for the Eclipse IDE
that is designed to give you a powerful, integrated environment
in which to build Android applications.
 http://developer.android.com/tools/sdk/eclipse-adt.html
 What is SDK?
 The Android SDK provides you the API libraries and developer
tools necessary to build, test, and debug apps for Android.
 http://developer.android.com/sdk/index.html

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Android Programming

Overview

 What is NDK?
 The NDK is a toolset that allows you to implement parts of your
app using native-code languages such as C and C++. For
certain types of apps, this can be helpful so that you may reuse
existing code libraries written in these languages and possibly
increased performance.
 http://developer.android.com/tools/sdk/ndk/index.html

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Android Programming

Introduction

Getting Started

12

Android Programming

Resources you will need

Beginning Android 1
Window/Mac/Linux
Beginning Android 2
Android SDK
Pro Android
Eclipse
(Apress)
ADT

Software Textbook
PC or Laptop
Android Phone

Hardware

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Android Programming

Resources you will need

http://developer.android.com

Web

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Android Programming

Downloading and Installing

Java
Platform
(JDK)
Android
SDK

Eclipse

ADT
Plugin

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Android Programming

Introduction

Programming Fundamentals

16

Android Programming

Start a New Android Project

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Android Programming


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Android Programming


 Notes
 Build SDK
• Android 4.1 ( API 16)
 Minimum Required SDK
• Android 2.2 (API 8)
 Activity Name
• Name ‖Activity‖
 Layout Name
• ―activity_‖ name

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Android Programming

Project Structure

 Root Elements
 default.properties
 built.xml
 AndroidManifest.xml
 src/
 res/
 assets/
 bin/

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Android Programming

Project Structure

 Res folder elements
 res/drawable/
 res/layout/
 res/menu/
 res/raw/
 res/values/
 res/xml/

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Android Programming

Project Structure

 Inside the Manifest
 Here is where you declare what is inside your application—the
activities, the services, and so on.
 When you create your application, you will get a starter manifest
generated for you.
 Underneath the manifest element, you will find the following:
• uses-permission
• permission
• Instrumentation
• uses-library
• uses-sdk

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Android Programming

Project Structure

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Android Programming

Running and Debugging

 Create a new Android Virtual Device (AVD) if you do
not have any.
 From the Window menu, select AVD Manager
 From the AVD Manager window, click New button
 Input
• Name: API-16
• Target: Android 4.1 – API Level 16
• Size: 50 MB
• Built-in: Default (WVGA800)
 Click Create AVD button

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Android Programming


 From the Run menu, select Run or Debug
 If you’ve using the ADT plug-in, running or
debugging your application:
 Compiles the current project and converts it to an Android
executable (.dex).
 Packages the executable and external resources into Android
package (.apk).
 Starts the emulator (if it’s not already running).
 Installs your application onto the emulator.
 Start your application.

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Android Programming


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Android Programming

Exercise 1

 Sizes and Colors
 ―Android Programing‖: Text View, Black,
20dp, Center.
 ―Username‖: Text Field, Plain Text,
 ―Password‖: Text Field, Password
 ―Login‖: Button, Center

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[Android] Introduction to Android Programming

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