UE4中使用TObjectIterator寻找世界里的FileMediaSource失败
目的：想在世界里，寻找已有的FileMediaSource，运行时动态加载入媒体地址url，然后正常播放媒体。现状：从xml中读取媒体地址，打算用迭代器获得世界中所需的FileMediaSource，然后传入地址，再执行play。问题：使用TObjectIterator遍历世界时，编译器总会显示以下内容
============================output============================
Assertion failed: (Index >= 0) & (Index < ArrayNum)
Array index out of bounds: 1 from an array of size 1
UE4Editor.exe has triggered a breakpoint.
============================output============================
源码时这样的：
==========================-==code=============================
============================h=============================
#include "CoreMinimal.h"
#include "XmlParser.h"
#include "FileMediaSource.h"
#include "GameFramework/GameModeBase.h"
#include "PathChangeModeBase.generated.h"
UCLASS()
class VR_TEST1_API APathChangeModeBase : public AGameModeBase
{
GENERATED_BODY()
public:
UFUNCTION(BlueprintCallable, Category = "Xml")
void ReadXmlParser(const FString &_XmlPath);
UFUNCTION(BlueprintCallable, Category = "Xml")
FString GetXmlPath();
UFUNCTION(BlueprintCallable, Category = "Xml")
void GetFileMediaFromUrl(const FString &_MediaPath);
private:
//FString MediaPath;
};
========================cpp==================================
void APathChangeModeBase::GetFileMediaFromUrl(const FString &_MediaPath)
{
for (TObjectIterator<UFileMediaSource> Iterator; Iterator ; ++Iterator)
{
GEngine->AddOnScreenDebugMessage(-1, 15.0f, FColor::Blue, "I find you!");
//Iterator->FilePath = _MediaPath;
}
}
==========================-==code=============================
补充：已经排除其他函数问题，加入迭代器后才出现问题的~
求解：这问题如何解决？或者有没有其他方法实现目的···（表示已经被坑好些天了┭┮﹏┭┮）
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