code review

houxiao

2017-07-19 a88fc40a16cefc8248baa4b6aab7b7577e0ba4cc

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<?xml version="1.0" encoding="utf-8"?>
<SurfaceView xmlns:android="http://schemas.android.com/apk/res/android" 
   android:id="@+id/cameraSurfaceView" android:layout_width="match_parent"
   android:layout_height="match_parent">
</SurfaceView>