Added label sizes for title, action / cancel buttons (#231)

* Added label sizes for title, action / cancel buttons

* Added default value comments

Author: haavamoa

src/DIPS.Xamarin.UI/Controls/Sheet/SheetBehavior.cs

@@ -62,6 +62,59 @@ public class SheetBehavior : Behavior<ModalityLayout>, IModalityHandler
             typeof(ICommand),
             typeof(SheetBehavior));
 
+        /// <summary>
+        /// The size of the title label.
+        /// This is a bindable property.
+        /// </summary>
+        /// <remarks>Default value is <see cref="NamedSize.Medium"/></remarks>
+        [TypeConverter(typeof(FontSizeConverter))]
+        public double TitleSize
+        {
+            get => (double)GetValue(TitleSizeProperty);
+            set => SetValue(TitleSizeProperty, value);
+        }
+
+        /// <summary>
+        /// <see cref="TitleSize"/>
+        /// </summary>
+        public static readonly BindableProperty TitleSizeProperty = BindableProperty.Create(nameof(TitleSize), typeof(double), typeof(SheetBehavior), defaultValueCreator:b => Device.GetNamedSize(NamedSize.Medium, typeof(Label)));
+
+        /// <summary>
+        /// The size of the label of the cancel button.
+        /// This is a bindable property.
+        /// </summary>
+        /// <remarks>Default value is <see cref="NamedSize.Small"/></remarks>
+        [TypeConverter(typeof(FontSizeConverter))]
+        public double CancelButtonSize
+        {
+            get => (double)GetValue(CancelButtonSizeProperty);
+            set => SetValue(CancelButtonSizeProperty, value);
+        }
+
+        /// <summary>
+        /// <see cref="CancelButtonSize"/>
+        /// </summary>
+        public static readonly BindableProperty CancelButtonSizeProperty = BindableProperty.Create(nameof(CancelButtonSize), typeof(double), typeof(SheetBehavior), defaultValueCreator: b => Device.GetNamedSize(NamedSize.Small, typeof(Button)));
+
+        /// <summary>
+        /// The size of the label of the action button.
+        /// This is a bindable property.
+        /// <remarks>Default value is <see cref="NamedSize.Small"/></remarks>
+        /// </summary>
+        [TypeConverter(typeof(FontSizeConverter))]
+        public double ActionButtonSize
+        {
+            get => (double)GetValue(ActionButtonSizeProperty);
+            set => SetValue(ActionButtonSizeProperty, value);
+        }
+
+        /// <summary>
+        /// <see cref="ActionButtonSize"/>
+        /// </summary>
+        public static readonly BindableProperty ActionButtonSizeProperty = BindableProperty.Create(nameof(ActionButtonSize), typeof(double), typeof(SheetBehavior), defaultValueCreator: b => Device.GetNamedSize(NamedSize.Small, typeof(Button)));
+
+
+
         /// <summary>
         ///     <see cref="OnBeforeCloseCommandParameter" />
         /// </summary>

src/DIPS.Xamarin.UI/Internal/Xaml/SheetView.xaml

@@ -75,7 +75,7 @@
                     <Label x:Name="TitleLabel"
                            Grid.Column="0"
                            Grid.ColumnSpan="3"
-                           FontSize="Large"
+                           FontSize="{Binding TitleSize}"
                            FontAttributes="Bold"
                            HorizontalOptions="Center"
                            Padding="10"
@@ -87,7 +87,7 @@
 
                     <Button x:Name="cancelButton"
                             Grid.Column="0"
-                            FontSize="Medium"
+                            FontSize="{Binding CancelButtonSize}"
                             Padding="10"
                             IsVisible="{Binding IsCancelButtonVisible}"
                             TextColor="{Binding CancelTitleColor}"
@@ -99,7 +99,7 @@
 
                     <Button x:Name="actionButton"
                             Grid.Column="2"
-                            FontSize="Medium"
+                            FontSize="{Binding ActionButtonSize}"
                             Padding="10"
                             BackgroundColor="{Binding HeaderColor}"
                             Command="{Binding ActionCommand}"