请问有没有办法用PHAsset获取原始文件名？我使用以下代码提取文件信息。[[PHImageManagerdefaultManager]requestImageDataForAsset:assetoptions:requestOptionresultHandler:^(NSData*imageData,NSString*dataUTI,UIImageOrientationorientation,NSDictionary*info){entity.fileUrl=[infoobjectForKey:@"PHImageFileURLKey"];entity.filename=[[NSFil

请问有没有办法用PHAsset获取原始文件名？我使用以下代码提取文件信息。[[PHImageManagerdefaultManager]requestImageDataForAsset:assetoptions:requestOptionresultHandler:^(NSData*imageData,NSString*dataUTI,UIImageOrientationorientation,NSDictionary*info){entity.fileUrl=[infoobjectForKey:@"PHImageFileURLKey"];entity.filename=[[NSFil