EXC_BREAKPOINT（代码= EXC_i386_BPT，子代码= 0x0）

Question

我在从API检索后尝试插入CoreData。但是当我尝试它时，它显示为EXC_BREAKPOINT (code=EXC_i386_BPT, subcode=0x0)。在日志中，它仅显示为(lldb)。我不认为这与插座没关系，因为在写作过程中我没有设置任何特殊的插座。我也试图解决其他一个解决方案，但没有一个对我有用。请帮助解决它。

屏幕截图

代码

override func viewDidLoad() {
           super.viewDidLoad()

           var appDel :AppDelegate = UIApplication.sharedApplication().delegate as AppDelegate
           var context:NSManagedObjectContext = appDel.managedObjectContext!

           let urlString = "https://public-api.wordpress.com/rest/v1/sites/mmotaku.net/posts/"
           let url = NSURL(string: urlString)

           let session = NSURLSession.sharedSession()

           let task = session.dataTaskWithURL(url!, completionHandler: { (data, response, error) -> Void in
               if (error != nil) {
                   println(error)
               } else {
                   let jsonResult = NSJSONSerialization.JSONObjectWithData(data, options: NSJSONReadingOptions.MutableContainers, error: nil) as NSDictionary

                   let posts = jsonResult["posts"] as NSArray
                   var newBlogItem:NSManagedObjectContext

                   var items = [[String:String]()]
                   var item = [String:String]()


                   for var i = 0; i < posts.count; i++ {

                  newBlogItem = NSEntityDescription.insertNewObjectForEntityForName("BlogItem", inManagedObjectContext: context) as NSManagedObjectContext

                       var authorDict = posts[i]["author"] as NSDictionary
                       newBlogItem.setValue(authorDict["name"], forKey: "name")
                       newBlogItem.setValue(posts[i]["title"], forKey:"title")
                       newBlogItem.setValue(posts[i]["content"], forKey: "content")
                       newBlogItem.setValue(posts[i]["date"], forKey: "date")

                       context.save(nil)   
                       println("completed")

                   }
               }
           })

           task.resume()


           if let split = self.splitViewController {
               let controllers = split.viewControllers
               self.detailViewController = controllers[controllers.count-1].topViewController as? DetailViewController
           }
}

Answer 1

您正在尝试转换为错误的类型。插入的结果将是NSManagedObject（或NSManagedObject的子类），而不是NSManagedObjectContext。因此，如果您的子类是BlogItem，请按如下所示更改插入：

newBlogItem = NSEntityDescription.insertNewObjectForEntityForName("BlogItem", inManagedObjectContext: context) as BlogItem

如果您还没有子类，只需在该行末尾使用NSManagedObject代替BlogItem。