<CheckBox
android:id="@+id/checkbox1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:button="@drawable/checkbox_style"
android:checked="true" />
checkbox_style文件
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="@drawable/ontract_uploaad_select" android:state_checked="true"/>
<item android:drawable="@drawable/ontract_uploaad_grey" android:state_checked="false"/>
<item android:drawable="@drawable/ontract_uploaad_grey"/>
</selector>