Get list of folder and files within Assets.xcassets

问题:

I have 2 questions:

1. I'm adding large amount of mp3 files into Assets.xcassets, is there any performance issue with this?

2. Within Assets.xcassets, I create folders & sub folders, and put mp3 files in those folders. Now in my code, I want to get list of those folders name and also list of files inside that folder. Is it possible?

回答1:

1. No it will not hamper your performance. If you face issue with loading large or many files, see this-Is it possible to load a compressed audio file directly into a buffer, without conversion?

2. Get all folder and subfolder.

For Obj c:

    NSArray *mainpaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,   NSUserDomainMask, YES); NSString *documentsDir = [mainpaths objectAtIndex:0];  NSFileManager *Filemanager = [NSFileManager defaultManager]; NSArray *fileList = [Filemanager contentsOfDirectoryAtPath:documentsDir error:nil]; for (NSString *s in fileList){     NSLog(@"YOu subfolder--%@", s); } 

For swift:

    let documentsDirectory =  try! NSFileManager().URLForDirectory(.DocumentDirectory, inDomain: .UserDomainMask, appropriateForURL: nil, create: true) let fileEnumerator = NSFileManager.defaultManager().enumeratorAtURL(documentsDirectory, includingPropertiesForKeys: nil, options: NSDirectoryEnumerationOptions(), errorHandler: nil) while let file = fileEnumerator?.nextObject() {    //get all file name here. } 

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