protected override EvasObject OnGetContent(Cell cell, string part)
{
BaseTypeCell typeCell = (BaseTypeCell)cell;
if (part == _iconPart && typeCell.Icon != null)
{
var image = new NImage(TForms.NativeParent);
SetUpImage(typeCell, image);
return(image);
}
else if (part == _endPart && typeCell.IsCheckVisible)
{
var check = new Check(TForms.NativeParent);
check.SetAlignment(-1, -1);
check.SetWeight(1, 1);
check.IsChecked = typeCell.IsChecked;
check.StateChanged += (sender, e) =>
{
typeCell.IsChecked = e.NewState;
};
//It is a temporary way to prevent that the check of the Cell gets focus until the UX about views in the Cell for TV is defined.
if (Device.Idiom == TargetIdiom.TV)
{
check.AllowFocus(false);
}
return(check);
}
return(null);
}
protected override bool OnCellPropertyChanged(Cell cell, string property, Dictionary <string, EvasObject> realizedView)
{
BaseTypeCell typeCell = (BaseTypeCell)cell;
if (property == BaseTypeCell.IconProperty.PropertyName)
{
if (!realizedView.ContainsKey(_iconPart) || typeCell.Icon == null)
{
return(true);
}
var image = realizedView[_iconPart] as NImage;
SetUpImage(typeCell, image);
return(false);
}
else if (property == BaseTypeCell.IsCheckedProperty.PropertyName && realizedView.ContainsKey(_endPart))
{
var check = realizedView[_endPart] as Check;
check.IsChecked = typeCell.IsChecked;
return(false);
}
else if (property == BaseTypeCell.IsCheckVisibleProperty.PropertyName ||
property == BaseTypeCell.TextProperty.PropertyName ||
property == BaseTypeCell.TextEndProperty.PropertyName ||
property == BaseTypeCell.SubProperty.PropertyName)
{
return(true);
}
return(base.OnCellPropertyChanged(cell, property, realizedView));
}
protected override Span OnGetText(Cell cell, string part)
{
BaseTypeCell typeCell = (BaseTypeCell)cell;
if (part == _textPart)
{
return(new Span()
{
Text = typeCell.Text,
FontSize = -1
});
}
else if (part == _textEndPart)
{
return(new Span()
{
Text = typeCell.TextEnd,
FontSize = -1
});
}
else if (part == _textSubPart)
{
return(new Span()
{
Text = typeCell.Sub,
FontSize = -1
});
}
return(null);
}
void SetUpImage(BaseTypeCell cell, NImage image)
{
if (cell.IconHeight > 0 && cell.IconWidth > 0)
{
image.MinimumWidth = cell.IconWidth;
image.MinimumHeight = cell.IconHeight;
}
else
{
image.LoadingCompleted += (sender, e) =>
{
image.MinimumWidth = image.ObjectSize.Width;
image.MinimumHeight = image.ObjectSize.Height;
};
}
image.LoadFromImageSourceAsync(cell.Icon);
}
