Create custom widgets for android

I'm trying to create a rotating imageView. Looking at this (http://stackoverflow.com/questions/1930963/rotating-a-view-in-android) I know I'll have to override onDraw.

But when I create my own derrived TextView class, how do 开发者_运维问答I use it in my xml layouts?

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To use it in your xml layout add the following:

<view class="yourpackage.yourclass.yourview" ...additional parameters... />

note the lowercase "view" or by directly specifying its name

<yourpackage.yourclass.yourview ...additional parameters... />

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How to create and access custom components is discussed here

http://developer.android.com/guide/topics/ui/custom-components.html