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定义一个selecter选择器

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android" >
    <item android:state_checked="false" android:drawable="@drawable/select_clerk_zmyfalse"></item>
    <item android:state_checked="true" android:drawable="@drawable/select_clerk_zmyok"></item>
</selector>

在layout中引用

 android:button="@drawable/user_checkbox_selector"这句话就将样式改变了

<CheckBox
                android:id="@+id/checkBox1"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_centerInParent="true"
                android:button="@drawable/user_checkbox_selector"
                android:text="全选"
                android:textColor="#919191" />