Android is an operating system that is based on the mix of Linux kernel modified versions as well as other open source software was introduced on Nov 5, 2007. People think Android is only for smartphones as well as tablets but today it is used on televisions also. Initially, it was developed by Android Inc. but later on, it was bought by Google. There are different type of features used in android like Check Box in Android, Toggle Button in Android and Spinner in android, you can get all details about these by ( experts.