搬了lyra的hudlayout

Plugins/CommonGame/Source/Public/Actions/AsyncAction_CreateWidgetAsync.h

@@ -0,0 +1,51 @@
+// Copyright Epic Games, Inc. All Rights Reserved.
+
+#pragma once
+
+#include "Engine/CancellableAsyncAction.h"
+#include "UObject/SoftObjectPtr.h"
+
+#include "AsyncAction_CreateWidgetAsync.generated.h"
+
+class APlayerController;
+class UGameInstance;
+class UUserWidget;
+class UWorld;
+struct FFrame;
+struct FStreamableHandle;
+
+DECLARE_DYNAMIC_MULTICAST_DELEGATE_OneParam(FCreateWidgetAsyncDelegate, UUserWidget*, UserWidget);
+
+/**
+ * Load the widget class asynchronously, the instance the widget after the loading completes, and return it on OnComplete.
+ */
+UCLASS(BlueprintType)
+class COMMONGAME_API UAsyncAction_CreateWidgetAsync : public UCancellableAsyncAction
+{
+	GENERATED_UCLASS_BODY()
+
+public:
+	virtual void Cancel() override;
+
+	UFUNCTION(BlueprintCallable, BlueprintCosmetic, meta=(WorldContext = "WorldContextObject", BlueprintInternalUseOnly="true"))
+	static UAsyncAction_CreateWidgetAsync* CreateWidgetAsync(UObject* WorldContextObject, TSoftClassPtr<UUserWidget> UserWidgetSoftClass, APlayerController* OwningPlayer, bool bSuspendInputUntilComplete = true);
+
+	virtual void Activate() override;
+
+public:
+
+	UPROPERTY(BlueprintAssignable)
+	FCreateWidgetAsyncDelegate OnComplete;
+
+private:
+	
+	void OnWidgetLoaded();
+
+	FName SuspendInputToken;
+	TWeakObjectPtr<APlayerController> OwningPlayer;
+	TWeakObjectPtr<UWorld> World;
+	TWeakObjectPtr<UGameInstance> GameInstance;
+	bool bSuspendInputUntilComplete;
+	TSoftClassPtr<UUserWidget> UserWidgetSoftClass;
+	TSharedPtr<FStreamableHandle> StreamingHandle;
+};