In this tutorial we will learn about Spinner in Android. If you ever worked in Java AWT or Swing then you might be familiar with Combo Box. Spinner are same like those Combo Boxes. Spinner allow an user to choose from multiple choices and user can select only one option at a single time. For example you are making an app for an education institute and you have an activity in you application where a user can apply for a course. In this kind of situation you can use Spinner which would allow a your to select one course from many. In this tutorial firstly we will learn about Array Adapters then we will move to Spinners.