sheishuoAPP/app/res/layout/video_call_bottom_switch_layout.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/avchat_incoming_control"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:baselineAligned="false"
    android:gravity="center"
    android:orientation="horizontal"
    android:visibility="visible">


    <ImageView
        android:id="@+id/avchat_switch_camera"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:background="@color/color_f2f7fc"
        android:contentDescription="@string/empty"
        android:padding="10dp"
        android:scaleType="centerInside"
        android:src="@drawable/avchat_switch_camera_bg" />


    <ImageView
        android:id="@+id/avchat_close_camera"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:background="@color/color_f2f7fc"
        android:contentDescription="@string/empty"
        android:padding="10dp"
        android:scaleType="centerInside"
        android:src="@drawable/avchat_close_camera_bg" />

    <ImageView
        android:id="@+id/avchat_video_mute"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:background="@color/color_f2f7fc"
        android:contentDescription="@string/empty"
        android:padding="10dp"
        android:scaleType="centerInside"
        android:src="@drawable/avchat_mute_bg" />

    <ImageView
        android:id="@+id/avchat_video_record"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:background="@color/color_f2f7fc"
        android:contentDescription="@string/empty"
        android:padding="10dp"
        android:scaleType="centerInside"
        android:src="@drawable/avchat_video_record_selector" />

    <ImageView
        android:id="@+id/avchat_video_logout"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:background="@drawable/avchat_logut_bg_selector"
        android:contentDescription="@string/empty"
        android:padding="10dp"
        android:scaleType="centerInside"
        android:src="@drawable/avchat_bottom_logout_selector" />

</LinearLayout>