问题描述
所以基本上我在 viewDidLoad 中这样做:
self.passwordTextfield.delegate = self
self.passwordTextfield.textContentType = .password
self.passwordTextfield.isSecureTextEntry = true
一切正常,直到我按 Enter 并且应用程序冻结。在模拟器上我没有收到错误 - 如果我在实际手机上产生错误,它会冻结,一分钟后 Xcode 显示此错误消息:
“来自调试器的消息:由于内存问题而终止”
如果我设置 self.passwordTextfield.isSecureTextEntry = false
一切正常。
我使用 textfieldShouldReturn(_textField: UITextField)
在按下 Enter 键时移除键盘:
func textFieldShouldReturn(_ textField: UITextField) -> Bool {
textField.resignFirstResponder()
return true
}
我像这样子类化了 UITextfield:
@IBDesignable
class Textfield: UITextField {
let padding: UIEdgeInsets = UIEdgeInsets(top: 0,left: 15,bottom: 0,right: 15)
let height: CGFloat = 60
let cornerRadius: CGFloat = 15
override init(frame: CGRect) {
super.init(frame: frame)
}
required init?(coder: NSCoder) {
super.init(coder: coder)
}
override func layoutSubviews() {
super.layoutSubviews()
self.setupTextfield()
}
private func setupTextfield() {
// height
self.frame.size.height = self.height
// style
self.styleTextfield()
// correction
self.autocorrectionType = .no
}
private func styleTextfield() {
// font
self.font = UIFont.systemFont(ofSize: 17)
// color
self.textColor = Constants.Colors.dark_blue.withAlphaComponent(0.6)
// alignment
self.contentVerticalAlignment = .center
// default background
self.backgroundColor = isEditing ? Constants.Colors.light_white : Constants.Colors.light_grey
// border
self.borderStyle = .none
// corners
self.layer.cornerRadius = self.cornerRadius
// shadow
self.layer.shadowColor = UIColor.black.cgColor
self.layer.shadowOpacity = 0.1
self.layer.shadowOffset = CGSize(width: 0,height: 3)
}
override func textRect(forBounds bounds: CGRect) -> CGRect {
return bounds.inset(by: padding)
}
override open func placeholderRect(forBounds bounds: CGRect) -> CGRect {
return bounds.inset(by: padding)
}
override open func editingRect(forBounds bounds: CGRect) -> CGRect {
return bounds.inset(by: padding)
}
}
解决方法
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