我的 iOS 应用程序中出现 unrecognized selector sent
错误。我尝试根据其他类似线程中提到的答案解决问题,但失败了。请查看下面的代码并帮助我解决这个问题。
谢谢
class ThirdViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
let leftSwipe = UISwipeGestureRecognizer(target: self, action: Selector(("HandleSwipes:")))
let rightSwipe = UISwipeGestureRecognizer(target: self, action: Selector(("HandleSwipes:")))
leftSwipe.direction = .left
rightSwipe.direction = .right
view.addGestureRecognizer(leftSwipe)
view.addGestureRecognizer(rightSwipe)
}
func HandleSwipes(sender: UISwipeGestureRecognizer) {
//if(sender.direction == .left)
//{
// tabBarController?.selectedIndex = 1
//}
}
}
最佳答案
像这样写选择器。
Swift 2.3 或更低版本。
let leftSwipe = UISwipeGestureRecognizer(target: self, action: #selector(HandleSwipes(_:)))
let rightSwipe = UISwipeGestureRecognizer(target: self, action: #selector(HandleSwipes(_:)))
swift 3
let leftSwipe = UISwipeGestureRecognizer(target: self, action: #selector(HandleSwipes(sender:)))
let rightSwipe = UISwipeGestureRecognizer(target: self, action: #selector(HandleSwipes(sender:)))
注意:一个建议是 batter 方法名称总是以小写而不是大写开头。因此,如果您使用 handleSwipes
而不是 HandleSwipes
会更好。
关于ios - UISwipeGestureRecognizer 抛出无法识别的选择器发送错误,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/39586525/