无法使用CoreData调用非函数类型'NSManagedObjectContext'的值

Posted 2023-02-16

我正在尝试使用CoreData做某事，但感到困惑，我声明了persistentContainer，但是当我尝试获取viewContext时，它出错了，会有一些帮助！

let container: NSPersistentContainer? = (UIApplication.shared.delegate as! AppDelegate).persistentContainer

func textViewDidChange(_ textView: UITextView) 
    let width = textView.frame.size.width
    let size = CGSize(width: width, height: .infinity)
    let estimatedSize = textView.sizeThatFits(size)
    let tenTextLines = UIFont.preferredFont(forTextStyle: .body).lineHeight * 10

    if textView == textTextView 
        if let text = textTextView.text 
            container?.viewContext  context in      //err:Cannot call value of non-function type 'NSManagedObjectContext'
                _ = try? Entry.findOrCreatEntry(matching: text, in: context)
            

答案

我想你是说

if textView == textTextView 
    if let text = textTextView.text, let context = container?.viewContext 
       _ = try? Entry.findOrCreatEntry(matching: text, in: context)
    
...