Android学习 之 ColorStateList按钮文字变色

首先添加一个ColorStateList资源XML文件，XML文件保存在res/color/button_text.xml:

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_pressed="true"  android:color="#ffff0000"/>
    <item android:state_focused="true"  android:color="#ff0000ff"/>
    <item android:color="#ff000000"/>
</selector>

Button btn=(Button)findViewById(R.id.btn);
Resources resource=(Resources)getBaseContext().getResources();
ColorStateList csl=(ColorStateList)resource.getColorStateList(R.color.button_text);
btn.setTextColor(csl);//设置按钮文字颜色