有时候做自定义控件时就会遇到命名冲突，改变有冲突的名字自然是最直接有效的方式，但是感觉很傻。我搜了下别人的解决方案，觉得很值得借鉴。就是把重名的属性，独立出来写一下，然后在定义时直接写属性名字即可。
比如：下面两个declare-styleable中icon重名了，我们就需要将icon独立出来写。
<? xml version = "1.0" encoding = "utf-8" ?>
< resources >
< declare-styleable name= "PreferenceHeader" >
<!-- Identifier value for the header. -->
< attr name= "id" format = "integer"/>
< attr name= "icon" format = "integer" />
<!-- The fragment that is displayed when the user selects this item. -->
</declare-styleable >
< declare-styleable name= "Preference" >
< attr name= "icon" format = "integer" />
<!-- The key to store the Preference value. -->
< attr name= "key" format = "string" />
</declare-styleable >
</ resources >
icon独立定义，就可以被多次引用了。
<? xml version = "1.0" encoding = "utf-8" ?>
< resources >
< attr name = "icon" format = "integer" /> < declare-styleable name= "PreferenceHeader" >
<!-- Identifier value for the header. -->
< attr name= "id" format = "integer"/>
< attr name= "icon" />
</declare-styleable > < declare-styleable name= "Preference" >
< attr name= "icon" />
<!-- The key to store the Preference value. -->
< attr name= "key" format = "string" />
</declare-styleable > </ resources >
参考自：http://www.jcodecraeer.com/a/anzhuokaifa/androidkaifa/2014/0929/1718.html