protected override EvasObject OnGetContent(Cell cell, string part)
{
if (part == ImagePart)
{
var imgCell = cell as ImageCell;
int pixelSize = System.Maui.Maui.ConvertToScaledPixel(imgCell.RenderHeight);
if (pixelSize <= 0)
{
pixelSize = System.Maui.Maui.ConvertToPixel(_defaultHeight);
}
var image = new Native.Image(System.Maui.Maui.NativeParent)
{
MinimumWidth = pixelSize,
MinimumHeight = pixelSize
};
image.SetAlignment(-1.0, -1.0); // fill
image.SetWeight(1.0, 1.0); // expand
var task = image.LoadFromImageSourceAsync(imgCell.ImageSource);
return(image);
}
else
{
return(null);
}
}
protected override void OnElementChanged(ElementChangedEventArgs <ImageButton> e)
{
if (Control == null)
{
SetNativeControl(new Box(System.Maui.Maui.NativeParent));
Control.SetLayoutCallback(OnLayout);
_round = new Native.RoundRectangle(System.Maui.Maui.NativeParent);
_round.Show();
_border = new Native.BorderRectangle(System.Maui.Maui.NativeParent);
_border.Show();
_image = new Native.Image(System.Maui.Maui.NativeParent);
_image.Show();
_button = new EButton(System.Maui.Maui.NativeParent)
{
Style = "transparent"
};
_button.Clicked += OnClicked;
_button.Pressed += OnPressed;
_button.Released += OnReleased;
_button.Show();
Control.PackEnd(_round);
Control.PackEnd(_image);
Control.PackEnd(_border);
Control.PackEnd(_button);
}
base.OnElementChanged(e);
}
Native.Image GetSearchHandlerIcon(ImageSource source)
{
Native.Image _icon = new Native.Image(System.Maui.Maui.NativeParent);
if (source != null)
{
var task = _icon.LoadFromImageSourceAsync(source);
}
return(_icon);
}
void InitializeTabsItem(EToolbarItem item, string resource)
{
//The source of icon resources is https://materialdesignicons.com/
ImageSource src = ImageSource.FromResource(resource, typeof(ShellItemRenderer).GetTypeInfo().Assembly);
Native.Image icon = new Native.Image(System.Maui.Maui.NativeParent);
var task = icon.LoadFromImageSourceAsync(src);
item.SetPartContent("elm.swallow.icon", icon);
item.SetPartColor("bg", _backgroudColor);
item.SetPartColor("underline", EColor.Transparent);
}
EvasObject GetContent(object data, string part)
{
ShellSection section = data as ShellSection;
var box = new Native.Box(System.Maui.Maui.NativeParent);
box.Show();
var icon = new Native.Image(System.Maui.Maui.NativeParent)
{
MinimumWidth = System.Maui.Maui.ConvertToScaledPixel(44),
MinimumHeight = System.Maui.Maui.ConvertToScaledPixel(27)
};
var task = icon.LoadFromImageSourceAsync(section.Icon);
icon.Show();
var title = new Native.Label(System.Maui.Maui.NativeParent)
{
Text = section.Title,
FontSize = System.Maui.Maui.ConvertToEflFontPoint(14),
HorizontalTextAlignment = Native.TextAlignment.Start,
VerticalTextAlignment = Native.TextAlignment.Center
};
title.Show();
box.PackEnd(icon);
box.PackEnd(title);
box.LayoutUpdated += (object sender, LayoutEventArgs e) =>
{
icon.Move(e.Geometry.X + _iconPadding, e.Geometry.Y + _iconPadding);
icon.Resize(_iconSize, _iconSize);
title.Move(e.Geometry.X + 2 * _iconPadding + _iconSize, e.Geometry.Y);
title.Resize(e.Geometry.Width - (2 * _iconPadding + _iconSize), e.Geometry.Height);
};
box.MinimumHeight = _cellHeight;
return(box);
}
void Initialize(EvasObject parent)
{
_box = new Native.Box(parent)
{
AlignmentX = -1,
AlignmentY = -1,
WeightX = 1,
WeightY = 1
};
SetContent(_box);
_menu = new GenList(parent)
{
BackgroundColor = EColor.Transparent,
Style = "solid/default",
};
_menu.ItemSelected += (s, e) =>
{
_flyoutMenu.TryGetValue(e.Item.Data as Item, out Element element);
SelectedItemChanged?.Invoke(this, new SelectedItemChangedEventArgs(element, -1));
};
_menu.Show();
_box.PackEnd(_menu);
_defaultClass = new GenItemClass("double_label")
{
GetTextHandler = (obj, part) =>
{
if (part == "elm.text")
{
return(((Item)obj).Title);
}
else
{
return(null);
}
},
GetContentHandler = (obj, part) =>
{
if (part == "elm.swallow.icon")
{
var icon = ((Item)obj).Icon;
if (icon != null)
{
var image = new Native.Image(parent)
{
MinimumWidth = System.Maui.Maui.ConvertToScaledPixel(24),
MinimumHeight = System.Maui.Maui.ConvertToScaledPixel(24)
};
var result = image.LoadFromImageSourceAsync(icon);
return(image);
}
else
{
return(null);
}
}
else
{
return(null);
}
}
};
}
