【Android Training UI】创建自定义Views(Lesson 0 - 章节概览)

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发表在我的独立网站http://kesenhoo.github.io/blog/2013/06/30/android-training-ui-creating-custom-views-lesson-0/ ，欢迎访问！

Android的framework有大量的Views用来与用户进行交互并显示不同种类的数据。但是有时候你的程序有个特殊的需求，而Android内置的views组件并不能实现。这一章节会演示如何创建你自己的views，并使得它们是robust与reusable的。

Dependencies and Prerequisites

Android 2.1 (API level 7) or higher

YOU should also read

Custom Components
Input Events
Property Animation
Hardware Acceleration
Accessibility developer guide

Try it out

Download the sample
CustomView.zip

Lesson

(1)创建一个View类

Create a class that acts like a built-in view, with custom attributes and support from the ADT layout editor.

(2)自定义Drawing

Make your view visually distinctive using the Android graphics system.

(3)使得View是可交互的

Users expect a view to react smoothly and naturally to input gestures. This lesson discusses how to use gesture detection, physics, and animation to give your user interface a professional feel.

(4)优化View

No matter how beautiful your UI is, users won’t love it if it doesn’t run at a consistently high frame rate. Learn how to avoid common performance problems, and how to use hardware acceleration to make your custom drawings run faster.

学习自：http://developer.android.com/training/custom-views/index.html，请多指教，谢谢！
转载请注明出自http://kesenhoo.github.com，谢谢配合！