我将消息保存到coredata中,当我离开控制器时它不会消失。每当我提出一个内置功能的新控制器时,它也会导致内存泄漏变得越来越大。
func saveMessagetoCoreData(text: String, timestamp: NSNumber, status: String, friend: Friend) {
let moc = (UIApplication.sharedApplication().delegate as! AppDelegate).managedObjectContext
let doubletimestamp = Double(timestamp)
let date = NSDate(timeIntervalSinceReferenceDate: (doubletimestamp))
createMessageWithText(text, friend: friend, context: moc, date: date, status: "...")
do {
try moc.save()
//moc.reset()
} catch let err {
print(err)
}
private func createMessageWithText(text: String, friend: Friend, context: NSManagedObjectContext, date: NSDate, isSender: Bool = false, status: String) -> Mesages {
let message = NSEntityDescription.insertNewObjectForEntityForName("Mesages", inManagedObjectContext: context) as! Mesages
message.user = friend
message.text = text
message.timestamp = date
message.isSender = isSender
message.status = status
message.fromID = NSUserDefaults.standardUserDefaults().objectForKey("FBid") as! String
friend.lastMessage = message
return message
}
当消息被保存到coredata中时,如果我解除了viewcontroller,它就不再被调用了。
任何人都知道发生了什么事?
答案 0 :(得分:2)
任何内存泄漏都可能是由代码中的循环引用引起的。以下两行看起来很可疑......
message.user = friend
...
friend.lastMessage = message
message.user
指向friend
,friend.lastMessage
指向message
。只要他们被释放你就应该没问题。什么是对视图控制器的引用?