protected override EvasObject OnGetContent(Cell cell, string part)
{
if (part == ImagePart)
{
var imgCell = cell as ImageCell;
int pixelSize = Forms.ConvertToScaledPixel(imgCell.RenderHeight);
if (pixelSize <= 0)
{
pixelSize = Forms.ConvertToPixel(_defaultHeight);
}
var image = new Native.Image(Forms.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 EvasObject OnGetContent(Cell cell, string part)
{
if (part == MainContentPart)
{
var entryCell = cell as EntryCell;
int pixelHeight = Forms.ConvertToScaledPixel(entryCell.RenderHeight);
pixelHeight = pixelHeight > 0 ? pixelHeight : Forms.ConvertToPixel(s_defaultHeight);
var label = new Label()
{
HorizontalOptions = LayoutOptions.Start,
VerticalOptions = LayoutOptions.Center,
VerticalTextAlignment = TextAlignment.Center,
FontSize = -1
};
label.SetBinding(Label.TextProperty, new Binding(EntryCell.LabelProperty.PropertyName));
label.SetBinding(Label.TextColorProperty, new Binding(EntryCell.LabelColorProperty.PropertyName, converter: new DefaultColorConverter()));
var entry = new Entry()
{
HorizontalOptions = LayoutOptions.FillAndExpand,
VerticalOptions = LayoutOptions.Center,
FontSize = -1,
};
entry.SetBinding(Entry.TextProperty, new Binding(EntryCell.TextProperty.PropertyName, BindingMode.TwoWay));
entry.SetBinding(Entry.PlaceholderProperty, new Binding(EntryCell.PlaceholderProperty.PropertyName));
entry.SetBinding(InputView.KeyboardProperty, new Binding(EntryCell.KeyboardProperty.PropertyName));
entry.SetBinding(Entry.HorizontalTextAlignmentProperty, new Binding(EntryCell.HorizontalTextAlignmentProperty.PropertyName));
var layout = new StackLayout()
{
Orientation = StackOrientation.Horizontal,
Children =
{
label,
entry
}
};
layout.Parent = cell;
layout.BindingContext = entryCell;
layout.MinimumHeightRequest = Forms.ConvertToScaledDP(pixelHeight);
var renderer = Platform.GetOrCreateRenderer(layout);
(renderer as LayoutRenderer)?.RegisterOnLayoutUpdated();
var nativeView = renderer.NativeView;
nativeView.PropagateEvents = false;
nativeView.MinimumHeight = pixelHeight;
_cacheCandidate[nativeView] = layout;
nativeView.Deleted += (sender, e) =>
{
_cacheCandidate.Remove(sender as EvasObject);
};
return(nativeView);
}
return(null);
}
protected override EvasObject OnReusableContent(Cell cell, string part, EvasObject old)
{
if (!_cacheCandidate.ContainsKey(old))
{
return(null);
}
var layout = _cacheCandidate[old];
layout.BindingContext = cell;
int height = Forms.ConvertToScaledPixel(cell.RenderHeight);
height = height > 0 ? height : Forms.ConvertToPixel(s_defaultHeight);
old.MinimumHeight = height;
return(old);
}
static double CalculateDoubleScaledSizeInLargeScreen(double size)
{
if (Forms.DisplayResolutionUnit.UseVP)
{
return(size);
}
if (!Forms.DisplayResolutionUnit.UseDeviceScale && GetPhysicalPortraitSizeInDP() > 1000)
{
size *= 2.5;
}
if (!Forms.DisplayResolutionUnit.UseDP)
{
size = Forms.ConvertToPixel(size);
}
return(size);
}
