我正在使用此功能进行插入，但我正面临收到内存Waring问题。我要将图库的图像路径的本地标识符保存到核心数据中。我已经通过功能描述了如何从iPhone库中获取所有图像并将其保存到核心数据中。请给我有用的建议。
func getAllImageFromIphoneGallery() {
let allPhotosOptions = PHFetchOptions()
allPhotosOptions.sortDescriptors = [NSSortDescriptor(key: "creationDate", ascending: true)]
self.assetsFetchResult = PHAsset.fetchAssetsWithMediaType(.Image, options: allPhotosOptions)
let manager = PHImageManager.defaultManager()
self.assetsFetchResult.enumerateObjectsUsingBlock{(object: AnyObject!,
count: Int,
stop: UnsafeMutablePointer<ObjCBool>) in
if object is PHAsset{
let asset = object as! PHAsset
let imageSize = CGSize(width: asset.pixelWidth,
height: asset.pixelHeight)
/* For faster performance, and maybe degraded image */
let options = PHImageRequestOptions()
options.deliveryMode = .FastFormat
options.synchronous = true
manager.requestImageForAsset(asset,
targetSize: imageSize,
contentMode: .AspectFill,
options: options,
resultHandler: {
(image, info) -> Void in
debugPrint(object.localIdentifier)
if let imageURL : NSURL? = info!["PHImageFileURLKey"] as AnyObject? as? NSURL
{
if imageURL != nil{
// let urlString: String = imageURL!.path!
let urlString: String = object.localIdentifier
print("this is image path \(urlString)")
self.arrPhotoPath.addObject(urlString)
}
}
}
)
}
}
}
func createTask() {
let context = NSManagedObjectContext(concurrencyType: NSManagedObjectContextConcurrencyType.PrivateQueueConcurrencyType)
context.persistentStoreCoordinator = (UIApplication.sharedApplication().delegate as! AppDelegate).persistentStoreCoordinator
context.performBlock {
while(true) { //
autoreleasepool {
let entityDescripition = NSEntityDescription.entityForName("PhotoLibrary", inManagedObjectContext: self.managedObjectContext)
debugPrint(self.arrPhotoPath);
let array = self.arrPhotoPath
if (array.count > 0)
{
for item in array {
let task = Tasks(entity: entityDescripition!, insertIntoManagedObjectContext: self.managedObjectContext)
task.frameid = "1"
task.photopath = item as! String
task.accesstoken = ""
task.photoname = "abc"
task.deliverystatus = "no"
array.removeObject(item)
}
}
}
do {
try self.managedObjectContext.save()
} catch _ {
}
self.managedObjectContext.reset()
}
}
}