In this codelab, you'll learn how to use the Android Studio Layout Editor with ConstraintLayout—a new type of layout available in the Android Support repository for building flexible and efficient layouts. The Layout Editor uses constraints to determine the position of a UI element within the layout.

android: text = "Android is an open source and Linux-based Operating System for mobile devices such as smartphones and tablet computers. Android was developed by the Open Handset Alliance, led by Google, and other companies. The first beta version of the Android Software Development Kit (SDK) was released by Google in 2007 where as the first commercial version, Android 1.0, was released in Import the project using Android Studio. Navigate to the app>res>layout> and open one of the layouts in the layout editor. This sample is best understood by seeing the constraints in the Design mode of the layout editor. CircularLayout. A layout that arranges other views in a circle. Demo. Download. Add this line to the build.gradle of your module: Android???????????????????????????????????? ?????????????????LayoutInflater??????? LayoutInflater is a fundamental component in Android. You must use it all the time to turn xml files into view hierarchies. There are several ways to get an instance of one, but it's not always clear why you should prefer one way over another. Android Tutorial & Sample Programs Class Overview. A BoringLayout is a very simple Layout implementation for text that fits on a single line and is all left-to-right characters. You will probably never want to make one of these yourself; if you do, be sure to call isBoring(CharSequence, TextPaint) first to make sure the text meets the criteria. This lesson shows you how to create a new Android project with Android Studio and describes some of the files in the project. First, be sure you have installed the latest version of Android Studio. Download Android Studio here. In the Welcome to And