我正在写一个简单的程序，到现在它只应该显示一个简单的uicollectionview。单元格包含标签和图像视图。存储在CoreData.There中的图像也是没有数据可用时间的代码。 但它给了我这个错误：
2015-06-16 23:03:15.694 What Can I Wear[16167:2033274] -[What_Can_I_Wear.MainPageCollectionViewConrtoller _setViewDelegate:]: unrecognized selector sent to instance 0x7ff1f2c30ba0
2015-06-16 23:03:15.697 What Can I Wear[16167:2033274] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[What_Can_I_Wear.MainPageCollectionViewConrtoller _setViewDelegate:]: unrecognized selector sent to instance 0x7ff1f2c30ba0'
*** First throw call stack:
(
0 CoreFoundation 0x0000000106b24c65 __exceptionPreprocess + 165
1 libobjc.A.dylib 0x000000010868fbb7 objc_exception_throw + 45
2 CoreFoundation 0x0000000106b2c0ad -[NSObject(NSObject) doesNotRecognizeSelector:] + 205
3 CoreFoundation 0x0000000106a8213c ___forwarding___ + 988
4 CoreFoundation 0x0000000106a81cd8 _CF_forwarding_prep_0 + 120
5 UIKit 0x00000001074f47bf -[UIViewController setView:] + 458
6 UIKit 0x0000000107a09b27 -[UICollectionViewController setView:] + 90
7 Foundation 0x0000000106f42b53 -[NSObject(NSKeyValueCoding) setValue:forKey:] + 259
8 CoreFoundation 0x0000000106a6cd50 -[NSArray makeObjectsPerformSelector:] + 224
9 UIKit 0x000000010769b52b -[UINib instantiateWithOwner:options:] + 1506
10 UIKit 0x00000001074f3718 -[UIViewController _loadViewFromNibNamed:bundle:] + 242
11 UIKit 0x00000001074f3d08 -[UIViewController loadView] + 109
12 UIKit 0x0000000107a097c1 -[UICollectionViewController loadView] + 235
13 UIKit 0x00000001074f3f79 -[UIViewController loadViewIfRequired] + 75
14 UIKit 0x000000010752401b -[UINavigationController _layoutViewController:] + 44
15 UIKit 0x0000000107524565 -[UINavigationController _updateScrollViewFromViewController:toViewController:] + 216
16 UIKit 0x0000000107524664 -[UINavigationController _startTransition:fromViewController:toViewController:] + 92
17 UIKit 0x0000000107525448 -[UINavigationController _startDeferredTransitionIfNeeded:] + 523
18 UIKit 0x0000000107525f0e -[UINavigationController __viewWillLayoutSubviews] + 43
19 UIKit 0x0000000107670715 -[UILayoutContainerView layoutSubviews] + 202
20 UIKit 0x0000000107443a2b -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 536
21 QuartzCore 0x000000010b224ec2 -[CALayer layoutSublayers] + 146
22 QuartzCore 0x000000010b2196d6 _ZN2CA5Layer16layout_if_neededEPNS_11TransactionE + 380
23 QuartzCore 0x000000010b219546 _ZN2CA5Layer28layout_and_display_if_neededEPNS_11TransactionE + 24
24 QuartzCore 0x000000010b185886 _ZN2CA7Context18commit_transactionEPNS_11TransactionE + 242
25 QuartzCore 0x000000010b186a3a _ZN2CA11Transaction6commitEv + 462
26 UIKit 0x00000001073c1a2d -[UIApplication _reportMainSceneUpdateFinished:] + 44
27 UIKit 0x00000001073c26f1 -[UIApplication _runWithMainScene:transitionContext:completion:] + 2648
28 UIKit 0x00000001073c10d5 -[UIApplication workspaceDidEndTransaction:] + 179
29 FrontBoardServices 0x000000010a19f5e5 __31-[FBSSerialQueue performAsync:]_block_invoke_2 + 21
30 CoreFoundation 0x0000000106a5841c __CFRUNLOOP_IS_CALLING_OUT_TO_A_BLOCK__ + 12
31 CoreFoundation 0x0000000106a4e165 __CFRunLoopDoBlocks + 341
32 CoreFoundation 0x0000000106a4df25 __CFRunLoopRun + 2389
33 CoreFoundation 0x0000000106a4d366 CFRunLoopRunSpecific + 470
34 UIKit 0x00000001073c0b42 -[UIApplication _run] + 413
35 UIKit 0x00000001073c3900 UIApplicationMain + 1282
36 What Can I Wear 0x000000010652b387 main + 135
37 libdyld.dylib 0x0000000108de7145 start + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException
(lldb)
这是我的代码： AppDelegate.swift
import UIKit
import CoreData
@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
var window: UIWindow?
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
// Override point for customization after application launch.
return true
}
func applicationWillResignActive(application: UIApplication) {
// Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
// Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game.
}
func applicationDidEnterBackground(application: UIApplication) {
// Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
// If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
}
func applicationWillEnterForeground(application: UIApplication) {
// Called as part of the transition from the background to the inactive state; here you can undo many of the changes made on entering the background.
}
func applicationDidBecomeActive(application: UIApplication) {
// Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
}
func applicationWillTerminate(application: UIApplication) {
// Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
// Saves changes in the application's managed object context before the application terminates.
self.saveContext()
}
// MARK: - Core Data stack
lazy var applicationDocumentsDirectory: NSURL = {
// The directory the application uses to store the Core Data store file. This code uses a directory named "com.atrin.ios.whattowear.TEST" in the application's documents Application Support directory.
let urls = NSFileManager.defaultManager().URLsForDirectory(.DocumentDirectory, inDomains: .UserDomainMask)
return urls[urls.count-1] as! NSURL
}()
lazy var managedObjectModel: NSManagedObjectModel = {
// The managed object model for the application. This property is not optional. It is a fatal error for the application not to be able to find and load its model.
let modelURL = NSBundle.mainBundle().URLForResource("What_Can_I_Wear", withExtension: "momd")!
return NSManagedObjectModel(contentsOfURL: modelURL)!
}()
lazy var persistentStoreCoordinator: NSPersistentStoreCoordinator? = {
// The persistent store coordinator for the application. This implementation creates and return a coordinator, having added the store for the application to it. This property is optional since there are legitimate error conditions that could cause the creation of the store to fail.
// Create the coordinator and store
var coordinator: NSPersistentStoreCoordinator? = NSPersistentStoreCoordinator(managedObjectModel: self.managedObjectModel)
let url = self.applicationDocumentsDirectory.URLByAppendingPathComponent("What_Can_I_Wear.sqlite")
var error: NSError? = nil
var failureReason = "There was an error creating or loading the application's saved data."
if coordinator!.addPersistentStoreWithType(NSSQLiteStoreType, configuration: nil, URL: url, options: nil, error: &error) == nil {
coordinator = nil
// Report any error we got.
var dict = [String: AnyObject]()
dict[NSLocalizedDescriptionKey] = "Failed to initialize the application's saved data"
dict[NSLocalizedFailureReasonErrorKey] = failureReason
dict[NSUnderlyingErrorKey] = error
error = NSError(domain: "YOUR_ERROR_DOMAIN", code: 9999, userInfo: dict)
// Replace this with code to handle the error appropriately.
// abort() causes the application to generate a crash log and terminate. You should not use this function in a shipping application, although it may be useful during development.
NSLog("Unresolved error \(error), \(error!.userInfo)")
abort()
}
return coordinator
}()
lazy var managedObjectContext: NSManagedObjectContext? = {
// Returns the managed object context for the application (which is already bound to the persistent store coordinator for the application.) This property is optional since there are legitimate error conditions that could cause the creation of the context to fail.
let coordinator = self.persistentStoreCoordinator
if coordinator == nil {
return nil
}
var managedObjectContext = NSManagedObjectContext()
managedObjectContext.persistentStoreCoordinator = coordinator
return managedObjectContext
}()
// MARK: - Core Data Saving support
func saveContext () {
if let moc = self.managedObjectContext {
var error: NSError? = nil
if moc.hasChanges && !moc.save(&error) {
// Replace this implementation with code to handle the error appropriately.
// abort() causes the application to generate a crash log and terminate. You should not use this function in a shipping application, although it may be useful during development.
NSLog("Unresolved error \(error), \(error!.userInfo)")
abort()
}
}
}
}
MainCollectionViewControllerCell.swift：
import Foundation
import UIKit
class MainCollectionViewControllerCell : UICollectionViewCell {
required init(coder aDecoder: NSCoder) {
super.init(coder : aDecoder);
}
@IBOutlet weak var imageView:UIImageView!
@IBOutlet weak var name: UILabel!
}
MainPageCollectionViewController.swift：
import Foundation
import UIKit
import CoreData
class MainPageCollectionViewConrtoller: UICollectionViewController,UICollectionViewDataSource {
let managedObject = (UIApplication.sharedApplication().delegate as! AppDelegate).managedObjectContext
private let reuseIdentifier = "Cloth Cell"
override func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) ->UICollectionViewCell {
let cell :MainCollectionViewControllerCell = collectionView.dequeueReusableCellWithReuseIdentifier(reuseIdentifier, forIndexPath: indexPath) as! MainCollectionViewControllerCell
let models :[Model] = DataModelController.getModels(managedObject!) as [Model]
if(models.count == 0){
let url = NSURL(string: "http://epaper2.mid-day.com/gallery.aspx?ed_date=2015-jun-14&ed_code=252&ed_check=adpath")
let data = NSData(contentsOfURL: url!)
cell.imageView.image = UIImage(data: data!)
cell.name.text = "Nothing Available"
return cell
}
let model : Model = models[indexPath.row]
cell.name.text = (model as Model).name
let image : NSData = (((model as Model).images.allObjects as Array)[0] as! ClothImages).image
cell.imageView.image = UIImage(data: image) as UIImage!
return cell
}
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}
MainPageCollectionViewController右舷代码：
<scene sceneID="Kn7-pO-JTm">
<objects>
<collectionViewController id="FVt-vB-R91" customClass="MainPageCollectionViewConrtoller" customModule="What_Can_I_Wear" customModuleProvider="target" sceneMemberID="viewController">
<collectionView key="view" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="scaleToFill" dataMode="prototypes" id="FJw-a0-Kgb" customClass="MainPageCollectionViewConrtoller" customModule="What_Can_I_Wear" customModuleProvider="target">
<rect key="frame" x="0.0" y="0.0" width="600" height="600"/>
<autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
<color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="calibratedRGB"/>
<collectionViewFlowLayout key="collectionViewLayout" minimumLineSpacing="10" minimumInteritemSpacing="10" id="CFC-BY-8kT">
<size key="itemSize" width="164" height="207"/>
<size key="headerReferenceSize" width="0.0" height="0.0"/>
<size key="footerReferenceSize" width="0.0" height="0.0"/>
<inset key="sectionInset" minX="0.0" minY="0.0" maxX="0.0" maxY="0.0"/>
</collectionViewFlowLayout>
<cells>
<collectionViewCell opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" id="Vwl-K3-92g" customClass="MainCollectionViewControllerCell" customModule="What_Can_I_Wear" customModuleProvider="target">
<rect key="frame" x="0.0" y="0.0" width="50" height="50"/>
<autoresizingMask key="autoresizingMask"/>
<view key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center">
<rect key="frame" x="0.0" y="0.0" width="164" height="207"/>
<autoresizingMask key="autoresizingMask"/>
<subviews>
<imageView userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" translatesAutoresizingMaskIntoConstraints="NO" id="ltQ-Ta-9Jq">
<rect key="frame" x="0.0" y="0.0" width="164" height="170"/>
</imageView>
<label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Name" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="RKA-CP-FuB">
<rect key="frame" x="59" y="178" width="46" height="21"/>
<fontDescription key="fontDescription" type="system" pointSize="17"/>
<color key="textColor" red="0.0" green="0.0" blue="0.0" alpha="1" colorSpace="calibratedRGB"/>
<nil key="highlightedColor"/>
</label>
</subviews>
<color key="backgroundColor" white="0.0" alpha="0.0" colorSpace="calibratedWhite"/>
</view>
<connections>
<outlet property="imageView" destination="ltQ-Ta-9Jq" id="D0d-mB-Ybk"/>
<outlet property="name" destination="RKA-CP-FuB" id="n5I-T9-OAf"/>
</connections>
</collectionViewCell>
</cells>
</collectionView>
<navigationItem key="navigationItem" id="Tdr-mU-YJp">
<barButtonItem key="leftBarButtonItem" style="plain" id="js7-jN-Ht7">
<button key="customView" opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" id="YkG-72-dmE">
<rect key="frame" x="-23" y="-15" width="133" height="30"/>
<autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
<state key="normal" title="Menu">
<color key="titleShadowColor" white="0.5" alpha="1" colorSpace="calibratedWhite"/>
</state>
</button>
</barButtonItem>
</navigationItem>
</collectionViewController>
<placeholder placeholderIdentifier="IBFirstResponder" id="Ek1-0V-iZ8" userLabel="First Responder" sceneMemberID="firstResponder"/>
</objects>
<point key="canvasLocation" x="1256" y="1014"/>
</scene>
我在这个错误中工作了两天，但我还没有想出解决方案。 请帮助。
答案 0 :(得分：0)
好吧，我找不到真正的原因，但是通过创建一个具有相同内容的新项目来解决这个问题。所以这可能是项目配置中的一个错误。
答案 1 :(得分：-1)
您可以添加符号断点，在发生这种情况时会停止。请在5:00左右查看this视频。这为您提供了更多信息