SButton shows up disabled

Development Programming & Scripting UI
, , ,
1

I want to create a radar widget which positions SButtons relative to alloted geometry. I create canvas like this:

void SLocatorScreen::Construct(const FArguments& InArgs)
{
	ChildSlot
	[
		SAssignNew( Canvas , SCanvas )
	];
}

Then I add slot in tick function (in tick because I need FGeometry)

void SLocatorScreen::Tick( const FGeometry& AllottedGeometry, const double InCurrentTime, const float InDeltaTime )
{
	Canvas->ClearChildren();
	Canvas->AddSlot().Position( AllottedGeometry.GetLocalSize() / 2 ).Size( FVector2D( 20, 20 ) )
		[
			SNew( SButton ).OnClicked( this, &SLocatorScreen::HostClick )
		];
}

The button shows up but is inactive. Through widget reflector I can see that it is disabled.
I tried appending .IsEnabled(true) to SNew call but it has no effect. Anyone knows why this is happening? If I create a slot in Construct button shows up enabled as expected (but I cannot place it there since i need AllotedGeometry)

2

Screenshot of reflector widget:

254701-clipboard02.jpg

3

I’ve tried doing this with no success:

	Canvas->ClearChildren();
	TSharedPtr<SButton> MyButton;
	Canvas->AddSlot().Position( AllottedGeometry.GetLocalSize() / 2 ).Size( FVector2D( 20, 20 ) )
		[
			SAssignNew(MyButton, SButton ).OnClicked( this, &SLocatorScreen::HostClick )
		];
	MyButton->SetEnabled( true );