<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
    <item android:id="@android:id/background" android:drawable="@mipmap/icon_microphone_normal" />
    <item android:id="@android:id/progress" >
        <clip android:drawable="@mipmap/icon_microphone_recoding" android:gravity="bottom" android:clipOrientation="vertical" />
    </item>
</layer-list>