在res/drawable底下建的文件

改变组件颜色的文件

<selector xmlns:android="http://schemas.android.com/apk/res/android" >
  <item android:state_focused="false"
        android:state_pressed="false" android:state_selected="false" 
        android:color="#000000" />
  <item android:state_focused="true" android:state_pressed="true" 
        android:color="#000000" /> 
  <item android:state_focused="false" android:state_pressed="true" 
        android:color="#f00" /> 
  <item android:state_selected="true" 
        android:color="#000000" /> 
  <item android:state_focused="true" 
        android:color="#ffffff" /> 
</selector>

 

设置背景样式

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" >
    <solid android:color="@color/white" />

     <!-- 设置四个角的半径 -->
    <corners
        android:bottomLeftRadius="5dp"
        android:bottomRightRadius="5dp"
        android:topLeftRadius="5dp"
        android:topRightRadius="5dp" />
    <!-- 设置边框  -->
     <stroke  
        android:width="0.01dp"  
        android:color="@color/black_ivoryw" />
</shape>

 

 

 

相同图片资源文件，放在不同的drawable文件中显示的不同效果，依次为 drawable-hdip ， drawable-ldip ， drawable-mdip ， drawable-xhdip， drawable-xxhdip， 自建的drawable