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

时间:2024-07-25 22:36:56

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

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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!