In this tutorial, You will get an idea about Android Studio, which is Official IDE for Android. Android Studio provides the fastest tools for building apps on every type of Android device. You will get basic idea about Project Structure, User Interface, Tool Windows etc. There are basically Java, XML files in any Android Projects. In .java file we are writing Logic in XML file we are doing layout/User Interface and in AndroidManifest, we have permission related XML tags. Various layouts are available for developing for good User Interface in Android. Introduction to Android and Create “Custom Message” application. That will display “Custom Message” in the middle of the screen in the Black color with Yellow background.