public View CreateButton(Func <string, Task> asycFunction, double width, double height, string text, string image = null,
double?fontSize = null, Color?backColorOverride = null, AlignImageEnumeration alignImage = AlignImageEnumeration.Left)
{
var result = CreateButtonView(width, height, text, image, fontSize, backColorOverride, alignImage);
if (alignImage == AlignImageEnumeration.Left)
{
AddTapGestureToView(result.layout, asycFunction, text);
}
else
{
AddTapGestureToView(result, asycFunction, text);
}
return(result.layout);
}
private ImageButtonContents CreateButtonView(double width, double height, string text, string image = null,
double?fontSize = null, Color?backColorOverride = null, AlignImageEnumeration alignImage = AlignImageEnumeration.Left)
{
backColorOverride = backColorOverride.HasValue ? backColorOverride : _backColor;
StackLayout layout = new StackLayout()
{
Margin = new Thickness(5, 5, 5, 5),
Padding = new Thickness(8, 8, 8, 8),
BackgroundColor = backColorOverride.Value,
WidthRequest = width,
HeightRequest = height,
Orientation = StackOrientation.Horizontal,
AutomationId = $"imgBtn{text}" //Used to prevent duplicates
};
if (text.IsNullOrEmpty())
{
//No text, just an image, center in on the 'button'
layout.VerticalOptions = LayoutOptions.CenterAndExpand;
layout.HorizontalOptions = LayoutOptions.CenterAndExpand;
layout.Padding = new Thickness(2, 2, 2, 2);
}
Image img = null;
if (image.IsNotNullOrEmpty())
{
img = new Image()
{
Source = image,
WidthRequest = text.IsNotNullOrEmpty()? width / 5 : width,
HeightRequest = text.IsNotNullOrEmpty()? height / 1.8 : height,
BackgroundColor = Color.Transparent
};
}
Label lbl = null;
if (text.IsNotNullOrEmpty())
{
lbl = new Label()
{
TextColor = _textColor,
Text = $" {text.ToUpper()}",
FontSize = fontSize ?? height / 2.2,
BackgroundColor = backColorOverride.Value,
HeightRequest = height - 10,
VerticalTextAlignment = TextAlignment.Center
};
}
if (alignImage == AlignImageEnumeration.Left && img != null)
{
layout.Children.Add(img);
}
if (lbl != null)
{
layout.Children.Add(lbl);
}
if (alignImage == AlignImageEnumeration.Right && img != null)
{
StackLayout alignRight = new StackLayout()
{
Padding = new Thickness(0, 10, 0, 0),
HorizontalOptions = LayoutOptions.EndAndExpand,
Children = { img }
};
layout.Children.Add(alignRight);
layout.Padding = 0;
layout.Margin = .5;
}
return(new ImageButtonContents()
{
lbl = lbl, layout = layout, img = img
});
}
public static void AddButton(StackLayout container, Func <string, Task> asyncFunction, double width,
double height, string text = null, string image = null, double?fontSize = null, Color?backColor = null, AlignImageEnumeration alignImage = AlignImageEnumeration.Left)
{
//We don't add duplicates to the stacklayout
if (container.Children.All(c => c.AutomationId != $"imgBtn{text}"))
{
var bg = ImgBtnGenerator.GetInstance();
var button = bg.CreateButton(asyncFunction, width, height, text, image, fontSize, backColor, alignImage);
container.Children.Add(button);
}
}
