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Android Workshop: Day 1 Part 3
 

Android Workshop: Day 1 Part 3

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Environment Setup

Environment Setup

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    Android Workshop: Day 1 Part 3 Android Workshop: Day 1 Part 3 Presentation Transcript

    • Android Application Development Environment Setup Ahsanul Karim ahsanul.karim@sentinelbd.comWorkshop: Day 1 Part 3 Sentinel Solutions Ltd. http://www.sentinelbd.com http://androidstream.wordpress.com
    • Setting up Development EnvironmentSystem Requirements Supported OS 1. Windows XP (32-bit), Vista (32- or 64-bit), or Windows 7 (32- or 64-bit) 2. Mac OS X 10.5.8 or later (x86 only) 3. Linux (tested on Ubuntu Linux, Lucid Lynx) Supported Development Environment (Eclipse IDE based) 1. Eclipse 3.4 (Ganymede) or greater/Eclipse Classic (versions 3.5.1 and higher) 2. JDK 1.5 or 1.6 3. ADT Plugin
    • Setting up Development Environment(Contd.)To set up the development environment, we need:1. Java Development Kit (JDK 1.5+, 1.6 is preferable)2. Eclipse IDE3. Android SDK
    • Setting up Development Environment (Contd.) Android SDK Link: http://developer.android.com/sdk/index.htmlDownload and Install the SDK starter package from the table above (Highlighted)
    • Setting up Development Environment (Contd.) Android SDK Setup (3)3. ADT Plugin for EclipseADT Plugin:Android Development Tools (ADT) is a plugin for the Eclipse IDE for1. extending the capabilities of Eclipse to set up new Android projects2. creating an application UI3. adding components based on the Android Framework API4. debugging your applications using the Android SDK tools5. exporting signed (or unsigned) APKs in order to distribute your application We’ll see the 5 points gradually during development
    • Setting up Development Environment (Contd.) Android SDK Setup (4)4. Installing the ADT 1. Start Eclipse, then select Help > Install New Software.... 2. Click Add, in the top-right corner. 3. In the next window, youll see a list of the tools to be downloaded. Click Next. 4. Read and accept the license agreements, then click Finish. 5. When the installation completes, restart Eclipse.
    • Setting up Development Environment (Contd.) Android SDK Setup (5)5. Set SDK path 1. Start Eclipse, then select Window > Preferences 2. Browse and show the path of Android SDK. 3. Press Apply and OK. Development Environment Setup is now completed!
    • Setting up Development Environment (Contd.)In Our Lab (1)
    • Setting up Development Environment (Contd.)In Our Lab (2)First we install JDK We have already done that
    • Setting up Development Environment (Contd.)In Our Lab (3.1)We’ll setup Eclipse IndigoStand-alone Eclipse: just decompress and run eclipse.exe You can create a shortcut in the desktop for eclipse.exe
    • Setting up Development Environment (Contd.)In Our Lab (3.3)We’ll setup Eclipse Indigo Choose your WorkSpace
    • Setting up Development Environment (Contd.)In Our Lab (3.5)We’ll setup Eclipse Indigo
    • Setting up Development Environment (Contd.)In Our Lab (3.6)We’ll setup Eclipse Indigo We’ll become familiar to our new IDE gradually and I swear you’ll start loving it
    • Setting up Development Environment (Contd.)In Our Lab (4.1)We’ll setup ADT Plugin
    • Setting up Development Environment (Contd.)In Our Lab (4.2)We’ll setup ADT Plugin
    • Setting up Development Environment (Contd.)In Our Lab (4.3)We’ll setup ADT Plugin
    • Setting up Development Environment (Contd.)In Our Lab (4.4)We’ll setup ADT Plugin
    • Setting up Development Environment (Contd.)In Our Lab (4.5)We’ll setup ADT Plugin
    • Setting up Development Environment (Contd.)In Our Lab (4.6)We’ll setup ADT Plugin
    • Setting up Development Environment (Contd.)In Our Lab (4.7)We’ll setup ADT Plugin Adding ADT Pluging is DONE… You’ll now get a message
    • Setting up Development Environment (Contd.)In Our Lab (5.1)We’ll setup android SDK After restarting Eclipse we get: Don’t forget to ask me about the red marks
    • Setting up Development Environment (Contd.)In Our Lab (5.2)We’ll setup android SDK SDK and AVD Manager: If we click on it: So, we have to set the location of Android SDK and show it to our IDE To do so….
    • Setting up Development Environment (Contd.)In Our Lab (5.3)We’ll setup android SDK
    • Setting up Development Environment (Contd.)In Our Lab (5.4)We’ll setup android SDK
    • Setting up Development Environment (Contd.)In Our Lab (5.5)We’ll setup android SDK
    • Setting up Development Environment (Contd.)In Our Lab (5.6)We’ll setup android SDK
    • Setting up Development Environment (Contd.)In Our Lab (5.6)We’ll setup DDMS Now We are Ready
    • Let’s say “Hello” to the Android World!
    • Let’s Go Deep…Created Project has the following structure Project Structure -Source (src) -Generated Class (gen) -Android 1.6 library -Assets (assets) -Resource(res) -drawable-hdpi -drawable-ldpi -drawable-mdpi -layout -values -AndroidMenifest.xml -default.properties
    • Let’s Go Deep… (Contd.)To run the app in emulator, we have to do the following steps:1. Create AVD (Android Virtual Device)2. Create Run Configuration3. Run the ApplicationTo run the app in device, we have to do the following steps:1. Install device driver2. Connect device through USB3. Create Run Configuration4. Run the Application We’ll run the app in emulator for now
    • Let’s Go Deep… (Contd.)1. Create AVD (Android Virtual Device)Use Android SDK & AVD Manager to create AVD
    • Let’s Go Deep… (Contd.)2. Create Run Configuration 1. Create a Run Configuration 2. Browse and select the project to run
    • Let’s Go Deep… (Contd.)3. Select AVD & Run Click Run to start AVD/emulator
    • Let’s Go Deep… (Contd.)Result in Emulator Now its time to analyze how it works
    • Project Structure…Created Project has the following structure Project Structure -Source (src) -Generated Class (gen) -Android 1.6 library -Assets (assets) -Resource(res) -drawable-hdpi -drawable-ldpi -drawable-mdpi -layout -values -AndroidMenifest.xml -default.properties
    • Project Structure (Contd.)-Source (src)We have used only one class here which is an Activity named HalloActivity. We’lldescribe about Activity in detail with lifecycle shortly. For now we can considerActivity as Android analogue for the window or dialog in a desktop application. Itcan load view from xml layout (here main.xml under res/layout folder) In the HelloActivity class the view of the Activity is set from main.xml given below
    • Project Structure (Contd.)-res/layout/main.xml 1. UI Layout can be defined from source code using View or by layout xmls. 2. The layout xml can be generated by visual tool given by ADT
    • Project Structure (Contd.)-res/drawable 1. From Android 1.6 to support different screen sizes and screen densities graphic files are kept in 3 different folders drawable-hdpi, drawable-ldpi and drawable-mdpi 2. In our current project, they contain only default icon file with different dimensions to support devices with different screen resolution.-assets Holds other static files you wish packaged with the application for deployment onto the device. In this project, we have none -gen/R.java -values/strings.xml
    • Project Structure (Contd.)-AndroidMenifest.xml XML file describing the application being built and what components – activities, services, etc. – are being supplied by that application