CommonUI How to push a widget and not have the previous widget disappear?

Development Programming & Scripting UI
,
2

I created my own stack from a UObject and just added the widget to the viewport using a different ZOrder like this. Works great. Wish there was an easier way, but it’s not too bad.

#pragma once

#include "CoreMinimal.h"
#include "UObject/NoExportTypes.h"
#include "CommonActivatableWidget.h"
#include "UIStack.generated.h"

UCLASS(BlueprintType)
class TOWERDEFENSE_API UUIStack : public UObject
{
	GENERATED_BODY()
	
  UPROPERTY()
  TArray<TObjectPtr<UCommonActivatableWidget>> Stack;

  UFUNCTION(BlueprintCallable)
  void PushWidget(UCommonActivatableWidget *Widget);

  UFUNCTION(BlueprintCallable)
  void PopWidget();
};

#include "UIStack.h"

void UUIStack::PushWidget(UCommonActivatableWidget* Widget)
{
  if (!Stack.IsEmpty())
  {
    Stack[Stack.Num()-1]->DeactivateWidget();
  }
  Stack.Add(Widget);
  Widget->AddToViewport(Stack.Num());
  Widget->ActivateWidget();
}

void UUIStack::PopWidget()
{
  if (!Stack.IsEmpty())
  {
    UCommonActivatableWidget* Widget = Stack[Stack.Num()-1];
    Widget->DeactivateWidget();
    Widget->RemoveFromParent();
    Stack.RemoveAt(Stack.Num()-1);
  }
  if (!Stack.IsEmpty())
  {
    UCommonActivatableWidget* Widget = Stack[Stack.Num() - 1];
    Widget->ActivateWidget();
  }
}

So you have to create the widget yourself and then add it.

image
image1468×726 145 KB

So you just need to create the stack somewhere that’s accessible and call PushWidget and PopWidget. I have a global GameActor blueprint that accissible from anywhere.

Leaving this here in case someone else needs it.

I’m now looking to see if there’s a way to blur the background while a popup is on screen.