How to change the icon of an Android app in Eclipse?

In your AndroidManifest.xml file

<application
        android:name="ApplicationClass"
        android:icon="@drawable/ic_launcher"  <--------
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >

Go into your AndroidManifest.xml file

• Click on the Application Tab
• Find the Text Box Labelled "Icon"
• Then click the "Browse" button at the end of the text box
• Click the Button Labelled: "Create New Icon..."
  
  
• Create your icon
• Click Finish
  
• Click "Yes to All" if you already have the icon set to something else.

Enjoy using a gui rather then messing with an image editor! Hope this helps!