![](/img/trans.png)
[英]Terminating app due to an uncaught exception 'NSInternalInconsistencyException', reason: 'Only run on the main thread!'
[英]'NSInternalInconsistencyException', reason: 'Only run on the main thread!' swift 4
嗨,大家只是想知道您是否可以帮助我调试此错误,但是会出现此错误,但是只有当我将ui文本视图添加到视图控制器时,这里才是视图控制器代码的所有内容,您可以看到我尝试了dispatchQueue但没有做任何事情。
import UIKit
class ViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
DispatchQueue.main.async {
weak var textview: UITextView!
}
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
}
在viewDidLoad之外声明变量
import UIKit
class ViewController: UIViewController {
var textview: UITextView!
override func viewDidLoad() {
super.viewDidLoad()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
}
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