#assetslibrary

I recently ran into an issue for an app I’m building when trying to access the AssetsLibrary using Swift.  The error I kept getting was :

invalid attempt to access ALAssetPrivate past the lifetime of its owning ALAssetsLibrary

For obj-c developers you just need to create a Singleton using dispatch_once() to create persistent access to the library.  

The gist of the code looks like this:

+ (ALAssetsLibrary *)defaultAssetsLibrary {    static dispatch_once_t pred = 0;    static ALAssetsLibrary *library = nil;    dispatch_once(&pred, ^{        library = [[ALAssetsLibrary alloc] init];    });    return library; }

In Swift I rewrote it like this:

class AssetsLib : ALAssetsLibrary {    class var sharedInstance : AssetsLib{        struct Static{            static let instance: AssetsLib = AssetsLib()        }

       return Static.instance    }

   override init(){

   } }

and here’s how i called it:

let library = AssetsLib.sharedInstance