opentok

MainPage.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"
             xmlns:d="http://xamarin.com/schemas/2014/forms/design"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
             xmlns:tok="clr-namespace:Xamarin.Forms.OpenTok;assembly=Xamarin.Forms.OpenTok"
             mc:Ignorable="d" x:Class="OpenTokExemplo.MainPage">

    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="*" />
            <RowDefinition Height="*" />
            <RowDefinition Height="80" />
        </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="*" />
            <ColumnDefinition Width="*" />
            <ColumnDefinition Width="*" />
        </Grid.ColumnDefinitions>
        
        <tok:OpenTokSubscriberView Grid.Row="0" Grid.Column="0" Grid.ColumnSpan="3" />
        <tok:OpenTokPublisherView Grid.Row="1" Grid.Column="0" Grid.ColumnSpan="3" />
        
        <Button Text="End Call" TextColor="Red" Grid.Row="2" Grid.Column="0" Clicked="OnEndCall" />
        <Button Text="Message" TextColor="Black" Grid.Row="2" Grid.Column="1" Clicked="OnMessage" />
        <Button Text="Swap Camera" TextColor="Purple" Grid.Row="2" Grid.Column="2" Clicked="OnSwapCamera" />
        
    </Grid>
</ContentPage>