發表在我的獨立網站http://kesenhoo.github.io/blog/2013/06/30/android-training-ui-creating-custom-views-lesson-0/ ，歡迎訪問！
Android的framework有大量的Views用來與用戶進行交互並顯示不同種類的數據。但是有時候你的程序有個特殊的需求，而Android內置的views組件並不能實現。這一章節會演示如何創建你自己的views，並使得它們是robust與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)創建一個View類
Create a class that acts like a built-in view, with custom attributes and support from the ADT layout editor.
(2)自定義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)優化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.
學習自：http://developer.android.com/training/custom-views/index.html，請多指教，謝謝！
轉載請註明出自http://kesenhoo.github.com，謝謝配合！