NewObject from FAssetData class

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TArray<FAssetData> AssetDatas;
FContentBrowserModule& ContentBrowserModule = FModuleManager:oadModuleChecked<FContentBrowserModule>("ContentBrowser");
IContentBrowserSingleton& ContentBrowserSingleton = ContentBrowserModule.Get();
ContentBrowserSingleton.GetSelectedAssets(AssetDatas);

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Finally got it done. Here is a basic sync loading version for future strugglers:

UAssetManager& AssetManager = UAssetManager::Get();
TArray<FAssetData> AssetDataList;
AssetManager.GetPrimaryAssetDataList(FPrimaryAssetType("MeshDataAsset"), AssetDataList);
for (FAssetData asset : AssetDataList) {
     UObject* LoadedAsset = asset.GetAsset();
     UBlueprint * CastedBP = Cast<UBlueprint>(LoadedAsset);
     if (CastedBP && CastedBP->GeneratedClass->IsChildOf(UMeshData::StaticClass()))
     {
         UClass * MeshDataClass = *CastedBP->GeneratedClass;
         UMeshData * Mesh = NewObject<UMeshData>(this, MeshDataClass);
     {
{

The problem was that asset.GetAsset() returns you not the class of the blueprint, but the blueprint itself. So you need to cast it and get the generated class from it. (works like a charm in editor, needs to be tested in cooked)

This way you can load ingame items/dataobjects in a list. Each is a blueprint with a c++ class parent. Also this can be easily updated for async load

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原文链接

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FVector objectPosition(0, 0, 0);
        FRotator objectRotation(0, 0, 0); //in degrees
        FVector objectScale(1, 1, 1);
        FTransform objectTrasform(objectRotation, objectPosition, objectScale);

        // Creating the Actor and Positioning it in the World based in the Static Mesh
        UWorld * currentWorld = GEditor->LevelViewportClients[0]->GetWorld();
        ULevel * currentLevel = currentWorld->GetLevel(0);
        // For new versions this instead:
        // UWorld* currentWorld = GEditor->GetEditorWorldContext().World();
        // ULevel * currentLevel = currentWorld->GetCurrentLevel();
        UClass * staticMeshClass = AStaticMeshActor::StaticClass();

        AActor * newActorCreated = GEditor->AddActor(currentLevel, staticMeshClass, objectTrasform, true, RF_Public | RF_Standalone | RF_Transactional);

        AStaticMeshActor * smActor = Cast(newActorCreated);

        smActor->GetStaticMeshComponent()->SetStaticMesh(myStaticMesh);
        smActor->SetActorScale3D(objectScale);
        // ID Name & Visible Name
        smActor->Rename(TEXT("MyStaticMeshInTheWorld"));
        smActor->SetActorLabel("MyStaticMeshInTheWorld");

        GEditor->EditorUpdateComponents();
        smActor->GetStaticMeshComponent()->RegisterComponentWithWorld(currentWorld);
        currentWorld->UpdateWorldComponents(true, false);
        smActor->RerunConstructionScripts();
        GLevelEditorModeTools().MapChangeNotify();

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   AStaticMeshActor* NewBlock = GetWorld()->SpawnActor<AStaticMeshActor>(FVector(300,-200,0), FRotator(0, 0, 0));
     NewBlock->SetActorScale3D(FVector(1, 1, 0.1f));
     NewBlock->SetMobility(EComponentMobility::Movable);
     TArray<UStaticMeshComponent*> Comps;
     NewBlock->GetComponents(Comps);
     if (Comps.Num() > 0)
     {
         UStaticMeshComponent* FoundComp = Comps[0];
         FoundComp->SetStaticMesh(pCubeMesh);
     }