How to set "textColor" property of button in android 2.1?

I am trying to set "textColor" property of butt开发者_Go百科on in android 2.1. But I am unable to set it to correct value ? What is the correct way of setting "textColor" property of a button in android 2.1 ?

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Just set hex values to change the color. I was able to find this using some trial/error

e.g. #aa0000 for red.