cordova-plugin-cszbar-jsg/android/res/layout/cszbarscanner.xml

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

    <TextView android:id="@+id/csZbarScannerTitle"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="top|center_horizontal"
        android:paddingTop="15dp"
        android:paddingBottom="5dp"
        android:paddingLeft="5dp"
        android:paddingRight="5dp"
        android:gravity="center"
        android:text="@string/csZbarScannerTitle"
        android:textColor="@color/csZbarScannerTextColor"
        android:background="@color/csZbarScannerTextBackground"
        android:fontFamily="sans-serif-light"
        android:textSize="20pt" />

    <TextView android:id="@+id/csZbarScannerInstructions"
        android:layout_gravity="bottom|center_horizontal"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:paddingTop="5dp"
        android:paddingBottom="15dp"
        android:paddingLeft="5dp"
        android:paddingRight="5dp"
        android:gravity="center"
        android:textSize="12pt"
        android:textColor="@color/csZbarScannerTextColor"
        android:background="@color/csZbarScannerTextBackground"
        android:fontFamily="sans-serif-light"
        android:text="@string/csZbarScannerInstructions" />

    <RelativeLayout android:id="@+id/csZbarScannerSightContainer"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent">

        <View android:id="@+id/csZbarScannerSight"
            android:layout_width="fill_parent"
            android:layout_height="1dp"
            android:layout_marginLeft="10dp"
            android:layout_marginRight="10dp"
            android:layout_centerInParent="true"
            android:gravity="center_vertical"
            android:background="#ff0000" />

        <Button
            android:id="@+id/button1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentBottom="true"
            android:layout_alignParentRight="true"
            android:onClick ="toggleFlash"
            android:text="Flash" />

    </RelativeLayout>

</FrameLayout>