Android Hello World Activity Sample

Here we are looking how to create a sample hello android program using eclipse IDE
1.Setup your Environment
2. Create an application

1. Setup Android Environment
a. Download latest Eclipse from http://eclipse.org/
b. update android Plug-in - Refer : http://about-android.blogspot.com/2009/11/about-android-first-of-all-android_09.html


c. Install Android SDK
Install new android SDK from the android site. Refer:http://about-android.blogspot.com/2009/11/about-android-first-of-all-android_09.html


D. Configure SDK with your Eclipse
Go to Window>Preference>Select Android > Browse "SDK PATH" > Apply


E. Create a Device / Emulator
Create emulator using the AVD manager
Open AVD Manager > New > Give Name/Target > Create AVD.


Android Environment has setted. Now we can create an android Application.

2. Create a " Hello World Apps "
a. Open Eclipse > File > Android Project.


b. Check the Android Folder Structure.
Go to Window > Show View > package Explorer


AndroidManifest.xml - It contains the overall application configuration.
src - Contains the java code like activites,service,broadcast receiver , etc,.
res - Contains the application resource
          1. drawable - Icon,Image
          2. raw - Sounds
          3. menu - menu properties
          4. values - application properites like title,color value, dropdown values.
          5. layout - screen design
gen - Contains the R.java File which is used to map the resource and java src.

c. Run the application
Run > Run Android Application

 

 D. Check the Emulator


Hope this is useful for create a hello world program.