Following is the default code generated by the application wizard for Hello World! application − This is the actual application file which ultimately gets converted to a Dalvik executable and runs your application. The main activity code is a Java file MainActivity.java.

This is the manifest file which describes the fundamental characteristics of the app and defines each of its components.įollowing section will give a brief overview few of the important application files. This is a directory for other various XML files that contain a collection of resources, such as strings and colors definitions. This is a directory for menu objects that are designed to make menu in android applications

This is a directory for files that define your app's user interface. This is a directory for drawable objects that are designed for high-density screens. This is a directory,which is having drawable,layout,values,and android manifest file

By default, it includes an MainActivity.java source file having an activity class that runs when your app is launched using the app icon. This is a directory to add the libraries to develop the android applications This contains the auto generated file which are as Aidl,Build configuration, and R(R.JAVA) Once your project is created successfully, you will have following project screen − Anatomy of Android Applicationīefore you run your app, you should be aware of a few directories and files in the Android project − Sr.No Next, follow the instructions provided and keep all other entries as default till the final step. Now name your application as HelloWorld using the wizard window as follows − Select start a new application project Enter an application name Select min-Sdk version Follow the option File -> New project ->Configure your new project -> selct factor your application is run on -> add activity ->Customise your activity -> and finally select finish wizard from the wizard list. The first step is to create a simple Android Application using Android Studio.

Android studio hello world not visible