设置UITextField委托时发生错误.
我的代码是:
import UIKit
class UserAlertVC: UIView , UITextFieldDelegate {
/*
// Only override draw() if you perform custom drawing.
// An empty implementation adversely affects performance during animation.
override func draw(_ rect: CGRect) {
// Drawing code
}
*/
override init(frame: CGRect) {
super.init(frame: frame)
}
required init(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)!
self.addBehavior()
}
func addBehavior (){
print("Add all the behavior here")
userNameTxtField.delegate = self
passwordTxtField.delegate = self
}
func textFieldShouldReturn(textField: UITextField) -> Bool {
return true
} …