Adding the StackLayout for denying photos

The next step is to add the StackLayout for denying photos on the left-hand side of the control, as follows:

1. Open Controls/SwiperControl.xaml.
2. Add the following code under the comment <!-- StackLayout for deny here -->:

<StackLayout x:Name="denyStackLayout" Opacity="0" 
             Padding="0, 100" HorizontalOptions="End">
    <Label Text="DENY" 
           TextColor="Red"
           FontSize="30"
           Rotation="-20" 
           FontAttributes="Bold" />
</StackLayout> 

The setup for the left-hand side StackLayout is the same, except that it should be in the first column, which is the default, so there is no need to add a Grid.Column attribute. We have also specified HorizontalOptions="End", which means that the content should be right-justified.