1、利用系统自带的颜色类，如：
TextView1.setTextColor(android.graphics.Color.RED);
2、数字颜色表示法
TextView1.setTextColor(0xffff00ff);
3、自定义颜色
TextView1.setTextColor(this.getResources().getColor(R.drawable.red));
我在values文件夹下新建一个color.xml，内容如下：
<?xml version="1.0" encoding="utf-8"?>
<resources>
<drawable name="dkgray">#80808FF0</drawable>
<drawable name="yello">#F8F8FF00</drawable>
<drawable name="white">#FFFFFF</drawable>
<drawable name="darkgray">#938192</drawable>
<drawable name="lightgreen">#7cd12e</drawable>
<drawable name="black">#ff000000</drawable>
<drawable name="blue">#ff0000ff</drawable>
<drawable name="cyan">#ff00ffff</drawable>
<drawable name="gray">#ff888888</drawable>
<drawable name="green">#ff00ff00</drawable>
<drawable name="ltgray">#ffcccccc</drawable>
<drawable name="magenta">#ffff00ff</drawable>
<drawable name="red">#ffff0000</drawable>
<drawable name="transparent">#00000000</drawable>
<drawable name="yellow">#ffffff00</drawable>
</resources>
