安卓自定义属性，Android studio无法提示，只提示3个

lvzhongyi:paddingEnd=""
lvzhongyi:paddingStart=""
lvzhongyi:android:focusable=""

<?xml version="1.0" encoding="utf-8"?>
<resources>
<attr name="MyText" format="string"/>
<attr name="MyTextColor" format="color"/>
<attr name="MyTextSize" format="dimension"/>
<declare-styleable name="MyView">
<attr name="MyText"/>
<attr name="MyTextColor"/>
<attr name="MyTextSize"/>
</declare-styleable>
</resources>

public class MyView extends View {}