Android Project Directories

Before we run any app, we should be aware of few directories and files in the Android Project:

1. AndroidManifest.xml

The manifest file describes the fundamental characteristics of the app and defines each of its components.

One of the most important elements your manifest should include is the . This declares the application compatibility with different Android version using the android:minSdkVersion and android:targetSdkVersion attributes.

The AndroidManifest.xml for basic application will look as shown below:-

   

    ...

2. scr/

This Directory cointain the main source file(Java files). By default, it includes an Activity class that runs when the app is launched.

res/ 

It cointain several sub-directories for the app resources.

              drawable-hdpi/

                                This is the directories for drawable object(such as bitmaps, .png etc) that are                                     designed for high-density(hdpi) screens.

                layout/

                                Directory that define the app's user interface. The layout cointain the .xml

                                files that is used to create the app's GUI.

                values/ 

                                Directory for other various XML files that cointain a collection of resources,

                                such as string and color definitions.

 In next post we will built a simple application.