Custom layout for scanning barcodes

PartialScanningPage.xaml

<?xml version="1.0" encoding="utf-8"?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
                        xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
                        x:Class="ZXingSample.PartialScreenScanning"
                        xmlns:zxing="clr-namespace:ZXing.Net.Mobile.Forms;assembly=ZXing.Net.Mobile.Forms"
                        Title="Partial screen">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="*" />
            <RowDefinition Height="Auto" />
            <RowDefinition Height="*" />
        </Grid.RowDefinitions>
        
        <BoxView Grid.Row="0" BackgroundColor="Chocolate"/>
        <zxing:ZXingScannerView Grid.Row="1" x:Name="_scanView" OnScanResult="Handle_OnScanResult" IsScanning="true"
                                WidthRequest="200" HeightRequest="200" />
        <BoxView Grid.Row="2" BackgroundColor="Blue" />
    </Grid>
</ContentPage>

@jfversluis I see the camera view in the page but no red line (basically it's just a camera and it's not scanning) even if i set IsScanning="True".
Any idea why?

The red line is part of the ScanningPage, think of it as an example view that is provided for you. The ScanningView allows you to customize that. It will provide you nothing out of the box, you can draw lines or whatever you want yourself though