<?xml version="1.0" encoding="utf-8"?>
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<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
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android:orientation="vertical" android:layout_width="match_parent"
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android:layout_height="match_parent">
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<SurfaceView
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android:layout_width="match_parent"
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android:layout_height="match_parent"
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android:id="@+id/surfaceview"/>
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<Button
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:layout_gravity="bottom|left"
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android:id="@+id/btn_amplify"
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android:background="@drawable/btn_state_save"
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android:text="放大"/>
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<Button
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:layout_gravity="bottom|left"
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android:id="@+id/btn_reduce"
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android:background="@drawable/btn_state_save"
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android:layout_marginLeft="120dp"
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android:text="缩小"/>
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</FrameLayout>
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