- Create a simple Project.
- Create a UserWidgetBP and add a ScrollBox in it, add some buttons to the ScrollBox.
- Create an ActorBP and add a WidgetComponent, set the widgetBP created the last step.
- Set "receive hardware input" to true in widgetcomponent's detail panel.
- Add the ActorBP to level.
- Package the project and launch it on mobile.
The scroll box can't be scrolled with touch input.