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This article shows you how to design Android UI elements, the content is concise and easy to understand, it will definitely brighten your eyes. I hope you can get something through the detailed introduction of this article.

The Android UI element contains a lot of content, such as: the platform is composed of operating system, middleware, user interface and application software. If an application wants to be liked by users, then UI can not be bad.

Android introduces some new terms for similar programming terms, which are described in detail in the following sections:

◆ Views

View is the basic UI class (and commonly known as control or widget) in visual interface elements. All UI controls and layout classes are inherited from View.

◆ ViewGroups

View Group is an extension of View that can accommodate multiple sub-View. By extending the ViewGroup class, you can create composite controls made up of interrelated child View. The ViewGroup class can also be extended as a layout manager, such as LinearLayout, to help you build UI. ActivitiesActivity, described in detail in the previous chapter, represents a window or screen that is displayed to the user. Activity is the Form of Android. To display UI, you just need to specify View or Layout to Activity.

The Android UI element provides some generic UI controls, widget, and layout managers. Like most graphics applications, it is possible to extend and modify some standard controls-- or create combined or entirely new controls-- to provide their own functionality.

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With the increasing screen size, display resolution and the strength of mobile processors, mobile applications are becoming more and more visual. When small screens present a challenge to creating complex visual interfaces, the ubiquity of mobile devices makes this challenge acceptable. In this chapter, you will learn the basic Android UI elements and learn how to use Views, View Groups, and layouts to create a functional, intuitive UI for your Activity.

After learning about some of the controls provided in Android SDK, you will learn how to extend and customize them. You will see how to use View Groups to combine Views. Create atomic, reusable UI elements made up of interacting child controls.

Use some layout managers that inherit from ViewGroup to organize individual elements of the Android UI element to the screen. Using layout correctly is important for creating a good UI.

The above content is how to design Android UI elements. Have you learned any knowledge or skills? If you want to learn more skills or enrich your knowledge reserve, you are welcome to follow the industry information channel.

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