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每当我尝试打开一个show segue不同的视图控制器它崩溃与此错误Swift：类AppDelegate中的线程1信号SIGABRT：UIResponder，UIApplicationDelegate，我不不知道为什么。Swift：线程1信号中的SIGABRT类AppDelegate：UIResponder，UIApplicationDelegate
这里的视图控制器，我尝试打开代码：
import UIKit
import CoreData
class AddEditVC: UIViewController, NSFetchedResultsControllerDelegate, UIImagePickerControllerDelegate, UINavigationControllerDelegate {
var item : Item? = nil
@IBOutlet weak var itemName: UITextField!
@IBOutlet weak var imageHolder: UIImageView!
let moc = (UIApplication.sharedApplication().delegate as! AppDelegate).managedObjectContext
override func viewDidLoad() {
super.viewDidLoad()
if item != nil {
itemName.text = item?.name
imageHolder.image = UIImage(data: (item?.image)!)
}
// Do any additional setup after loading the view.
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
@IBAction func addImage(sender: AnyObject) {
let pickerController = UIImagePickerController()
pickerController.delegate = self
pickerController.sourceType = UIImagePickerControllerSourceType.PhotoLibrary
pickerController.allowsEditing = true
self.presentViewController(pickerController, animated: true, completion: nil)
}
@IBAction func addImageFromCamera(sender: AnyObject) {
let pickerController = UIImagePickerController()
pickerController.delegate = self
pickerController.sourceType = UIImagePickerControllerSourceType.Camera
pickerController.allowsEditing = true
self.presentViewController(pickerController, animated: true, completion: nil)
}
func imagePickerController(picker: UIImagePickerController, didFinishPickingImage image: UIImage, editingInfo: [String : AnyObject]?) {
self.dismissViewControllerAnimated(true, completion: nil)
self.imageHolder.image = image
}
@IBAction func saveTapped(sender: AnyObject) {
if item != nil {
editItem()
} else {
createNewItem()
}
}
func createNewItem() {
let entityDescription = NSEntityDescription.entityForName("Item", inManagedObjectContext: moc)
let item = Item(entity: entityDescription!, insertIntoManagedObjectContext: moc)
item.name = itemName.text
item.image = UIImagePNGRepresentation(imageHolder.image!)
do {
try moc.save()
} catch {
return
}
}
func editItem() {
item?.name = itemName.text
item!.image = UIImagePNGRepresentation(imageHolder.image!)
do {
try moc.save()
} catch {
return
}
}