Android Tutorial 4 : Creating Your First Android Project

Before starting creating android application you must have setup environment for android development.
I hope that you have already  done that if not then do it  by following this link .

Creating a new Android Project in Eclipse  

1: Click On File  ->  New -> Project

         you will see a dialog, click on  Android Project  See picture

 

  2: Click on Next  button.

  3: Write the name your project or application . Here for this project I am using "My First App"

 4: Click on Next   choose a target

 5: Click on next.

  

          You see following dialog.   Fill in the fields:  see  picture

 

 Click on Finish buttton.

Your project named "My First App" is created and you can see in left pane under Package Explorer.

You will see some folders that are automatically created like Gen, Res,bin, Src etc.

Now you have to edit your main.xml file.

Editing  main.xml file

1.  Double click on"Res" folder in left pane under Package Explorer.

2. Double Click on "Layout"

3. click on main.xml.

modify the  main.xml file , it should look like( you can just copy this and paste in main.xml)

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <TextView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="My First Android Application" />

</LinearLayout>

FirstActivty.java 

public class FirstActivty.java extends Activity
{

           @Override
            protected void onCreate(Bundle savedInstanceState)
            {
                       super.onCreate(savedInstanceState);
                      setContentView(R.layout.main);

           }

}

Now right click on your project name and select "Run As"  then click on "Android Application".

It will start the emulator, wait for the emulator to show the output.

You will see following

 Hence you have created your first Android Application..

I have tried to make the things clear  hope you enjoyed it.

Comments are welcome.