Same-named attributes in attrs.xml for custom view

Android Studio下如果attrs出现属性重复会报错，如下:

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <declare-styleable name="MyView1">
        <attr name="myattr1" format="string" />
        <attr name="myattr2" format="dimension" />
        ...
    </declare-styleable>

    <declare-styleable name="MyView2">
        <attr name="myattr1" format="string" />
        <attr name="myattr2" format="dimension" />
        ...
    </declare-styleable>
</resources>

<?xml version="1.0" encoding="utf-8"?>
    <resources>
    <!-- parent styleable -->
     <declare-styleable name="MyView">
         <attr name="myattr1" format="string" />
         <attr name="myattr2" format="dimension" />
     </declare-styleable>

     <!-- inheriting parent styleable -->
     <!-- also note "myBackgroundColor" belongs to child styleable"MyView1"-->
    <declare-styleable name="MyView1" parent="MyView">
        <attr name="myattr1" />
        <attr name="myattr2" />
        <attr name="myBackgroundColor" format="color"/>
    </declare-styleable>


    <!-- inheriting parent styleable -->
    <!-- same way here "myfonnt" belongs to child styelable "MyView2" -->
    <declare-styleable name="MyView2" parent="MyView">
        <attr name="myattr1" />
        <attr name="myattr2" />
        <attr name="myfont" format="string"/>
        ...
    </declare-styleable>
</resources>

（编辑：李大同）

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