每块下载

可以使用 HTTP 按块连续下载二进制数据，将二进制数据作为流接收。为每次下载指定块大小，并为每个下载的块接收一个 OnComplete 回调。

Blueprint

C++

UFileToMemoryDownloader::DownloadFileToMemoryPerChunk(TEXT("https://www.example.com/some_file.raw"), 15.0f, TEXT(""), 52428800,
    FOnDownloadProgressNative::CreateLambda([](int64 BytesReceived, int64 ContentSize, float ProgressRatio)
	{
		UE_LOG(LogTemp, Log, TEXT("Download progress: %lld/%lld (%f)"), BytesReceived, ContentSize, ProgressRatio);
	}), FOnFileToMemoryChunkDownloadCompleteNative::CreateLambda([](const TArray64<uint8>& DownloadedContent, UFileToMemoryDownloader* Downloader)
	{
		// Handle the downloaded chunk here
		UE_LOG(LogTemp, Log, TEXT("Downloaded chunk size: %lld"), DownloadedContent.Num());
	}), FOnFileToMemoryAllChunksDownloadCompleteNative::CreateLambda([](EDownloadToMemoryResult Result, UFileToMemoryDownloader* Downloader)
	{
		UE_LOG(LogTemp, Log, TEXT("Download result: %s"), *UEnum::GetValueAsString(Result));
	}));