MELJUN CORTES ANDROID Lecture Sdk Install

8/20/2019 MELJUN CORTES ANDROID Lecture Sdk Install

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Programming with Android:SDK install and initial setup

MELJUN P. CORTES,MBA,MPA,MSCS in progress


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MELJUN P. CORTES - Programming with Android – SDK install and initial setup

SDK and initial setup: Outline

Today:

How to setup a machine to start developing AndroidapplicationsAn overview of an Android projectSome useful tools

Your first Android application• Maybe on a real device!


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Two options

Historically Android development was in Eclipse

Download the SDKInstall the Android plugin

Now there is Android Studio You still have to download the SDKCustomized environment


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Which one?

For the class, it ’s the same

If you already use and love Eclipse, go with it

You might see examples done in both platforms You can always import an Eclipse project into AndroidStudioThe inverse is difficult


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Where and how to get it

Go to http://developer.android.com/sdk/installing/studio.html

Download Android Studioand the SDK

Install it and you ’ re done!


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SDK tools

Android tool

Used to get APIs

and add-ons

You can also start it

from Android Studio


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Your first Android application

Go to File > New Project


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Testing on the emulator

Select “ Launch Emulator ”


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Creating an emulator

Can configure severaloptions

You can create as manyas you want


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Did everything went fine ?

Test in on the emulator

You should see something

similar to this


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Hello world , Android!

Anatomy of an application

Activity: what is startedView: what is seenIntent: how to communicate with others

Mix of XML and JavaGenerally XML for layoutsJava for the app logic


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Application structure

Even the simplest application

has a lot of filesSome are autogeneratedEach project contains

ActivitiesLayoutsXML files

AndroidManifest.xml


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build

Autogenerated files

No need to modify themSome are autogeneratedEach project contains

ActivitiesLayoutsXML files

AndroidManifest.xml


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src

All the code of your application

The java folder contains… the java code!Inside res there are a lot ofresources

ImagesLayoutsXml files

AndroidManifest.xml


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How to test

Via an AVD

Fast, possible to have different resolutions, APIsNot a real device

On a real deviceYou get exactly what is deployed

Must own a real deviceSo?

Test in on AVDs.When you feel that the application is ready, go with a real device


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How to deploy

Android applications must be signed before installing

them on a real device

You need a key for thisand you can generate from the menu.


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Eclipse


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SDK and initial setup: 3 step setup

Download Android SDK for your platform:

http://developer.android.com/sdk/index.html

Execute (and then select the Android API version) :android-sdk-xxx/tools/android

Install the ADT plugin for Eclipse:http://www.eclipse.org/downloads/https://dl-ssl.google.com/android/eclipse


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A l i f li


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ADT plugin for Eclipse

Useful to run applications via Eclipse, highly

reccomendedGo to http://developer.android.com/sdk/eclipse-adt.htmlPick the repository (actually https://dl-

ssl.google.com/android/eclipse/ ) Add a repository in Eclipse and download the“Developers Tools ”This will make a virtual bridge between eclipse andthe SDK

C P j

http://developer.android.com/sdk/eclipse-adt.htmlhttp://developer.android.com/sdk/eclipse-adt.htmlhttp://developer.android.com/sdk/eclipse-adt.htmlhttps://dl-ssl.google.com/android/eclipse/https://dl-ssl.google.com/android/eclipse/https://dl-ssl.google.com/android/eclipse/https://dl-ssl.google.com/android/eclipse/https://dl-ssl.google.com/android/eclipse/http://developer.android.com/sdk/eclipse-adt.html


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Create a Project

Create it under Eclipse

Assign an SDK targetChoose an application nameChoose a package nameCreate an activity and assign a name

Run it to test that everything is ok

C AVD


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Create an AVD

AVD means Android Virtual DevicTest the application before runningon a deviceMultiple APIs → Multiple targets

Makes it faster (and cheap) to testapplication on differentconfigurations/resolutions/storage

P j t t t


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Project contents

Project name

P j t t t


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Project contents

Project name

Src folder with java files

Project contents


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Project contents

Project name

Src folder with java files Auto-generated files

Project contents


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Project contents

Project name

Src folder with java files Auto-generated files Android's base files

Project contents


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Project contents

Project name


Compiled files

Project contents


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Project contents

Project name


Compiled files

Resources files

Project contents


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Project contents

Project name


Compiled files

Resources files Android Manifest

How to deploy


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How to deploy

Android applications must be signed before they can

be installed on a deviceEclipse can sign applicationsDebug mode, just to test it on your deviceRelease mode, when it's ready for other users

Signing in release mode


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Signing in release mode

Eclipse has a tool called Export Wizard

File > ExportExport Android ApplicationSelect your key and preferences

Application is compiled, signed and aligned, ready to bedeployed

Keep your private key safeUse a strong passwordDon't lend it to anyone

MELJUN CORTES ANDROID Lecture Sdk Install

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