kunmii.blogspot.com snippet for Building an Animated QR Scanner Viewfinder - Like Whatsapp web scanner view

activity_main.xml

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

    <SurfaceView
        android:id="@+id/cameraView"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">

        <View
            android:layout_width="match_parent"
            android:layout_height="185dp"
            android:background="@color/semitransparent" />


        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="0dp"
            android:layout_weight="1">

            <View
                android:id="@+id/left"
                android:layout_width="40dp"
                android:layout_height="match_parent"
                android:layout_alignParentLeft="true"
                android:layout_alignParentStart="true"
                android:background="@color/semitransparent" />

            <LinearLayout
                android:id="@+id/scannerLayout"
                android:layout_width="wrap_content"
                android:layout_height="match_parent"
                android:layout_centerInParent="true"
                android:layout_toEndOf="@+id/left"
                android:layout_toLeftOf="@id/right"
                android:layout_toRightOf="@id/left"
                android:layout_toStartOf="@+id/right"
                android:background="@drawable/ic_viewfinder"
                android:orientation="horizontal">

                <View
                    android:id="@+id/scannerBar"
                    android:layout_width="match_parent"
                    android:layout_height="5dp"
                    android:background="@color/colorPrimary" />


            </LinearLayout>


            <View
                android:id="@+id/right"
                android:layout_width="40dp"
                android:layout_height="match_parent"
                android:layout_alignParentEnd="true"
                android:layout_alignParentRight="true"
                android:background="@color/semitransparent" />

        </RelativeLayout>

        <View
            android:layout_width="match_parent"
            android:layout_height="185dp"
            android:background="@color/semitransparent" />
      
    </LinearLayout>

</FrameLayout>

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