How to make Android apps

Android development is to jump start by installing the components needed for the development.
This is the guide for installation although the android developers website provide much help for newbie developers,I will try with some screen shots and some solution for common errors during the installation.

How to make Android apps

what will you need ?

Eclipse IDE

Download Eclipse IDE from http://www.eclipse.org/downloads/ , select the java developers package or java EE developer package.You will get an zip file after downloading,Extract it to some location in your local drives.[ Do Extract the package and dont run the application as is in zip file ]

Java Developers Kit(JDK)

Download JDK 5 or 6 from http://java.sun.com/javase/downloads/index.jsp and complete the installation.

You have to install the ADT plugin to your Eclipse IDE inorder to develop androidapplications.You cannot directly download this ADT plugin,you can only download through the IDE interface.

Now run the Eclipse application and select Help > Install New Software.

In the Available Software dialog box, click Add

Provide a name for your remote site ex: Android plugin

In the Location field, enter the URL:  http://dl-ssl.google.com/android/eclipse/

[I am using http instead of https to avoid the "Failed to fetch" error.]

Now you will see a window like shown below,check the developer tools check box to select DDMS and development tools.click Next

android installation - ADT plugin

click Next and accept the terms and conditions and click Finish.

Download the android SDK for windows,Mac and linux and extract to a location and run SDK Setup.exe [ Location of this SDK setup is to be

After some moments android SDK and AVD manager will start and you will be prompted to select the packages you wish to install,select as per your needs but minimum you have to select one platform ex- android  2.2, android 2.1 etc

android installation- Step 3

Then click install selected

android installation- step 3

wait for the installation to complete.[Here I have selected SDK API,documentation,Platform and samples.

Android virtual device is the emulator that provides the virtual output for our applications.

In Android SDK and AVD Manager go to Virtual devices and select-> New

android virtual device setup

provide the name of the virtual device and select target to your installed platform.here I have installed android 2.2.If it can’t able to select the target then you didn’t installed anyandroid platform packages.

Leave the other settings as is [ This setting is used for emulator configuration] click create AVD and OK

android installation - step 4

Before starting to develop applications,you need to configure eclipse ADT plugin to properly work with SDK.

Open Eclipse IDE and click window then preferences and select Android in the left pane.

android installation configuring ADT plugin

Now click browse and select the path where the android SDK is extracted in step 3 clickapply and OK.If selected correctly the target name will be displayed in the window.If not selected the target name won’t be displayed.

The trouble some part is over.Now click file-> New->Project in Eclipse

Select Android->Android project

android installation step 5

Select

• Project name: HelloAndroid
• Application name: Hello, Android
• Package name: com.example.helloandroid
• Create Activity: HelloAndroid

click finish.

Now the application is ready,Your Android project is now ready. Open the HelloAndroid.java file, located inside HelloAndroid > src > com.example.helloandroid

Change the code to

Select run->run->android application

The android emulator will show up.It will take some time for the dive to boot up for first time.

android helloworld app

android helloworld app

Finally Hello world  application is executed on the AVD

.

Developer’s Link

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

Eclipse ADT

SOURCE: devlup.com

How to make Android apps