用代码：
self.passwordTextField.secureTextEntry = true |
要换成星号
swift textfiled secure point to start
swift textfiled secureTextEntry use star
ios – Secure UITextField text change to (*) asterisk character – Stack Overflow
说是自己实现EditingChanged：
self.passwordTextField.addTarget(self, action: #selector(self.textFiledEditingChanged(_:)), forControlEvents: UIControlEvents.EditingChanged) |
但是也不是很好：把真正输入的内容换掉了。。
swift textfiled secureTextEntry asterisk
swift textfiled asterisk
How can I change the dots to another character on password field in iOS Swift – Stack Overflow
ios – UITextField secureTextEntry bullets with a custom font? – Stack Overflow
最后，代码写成：
// // PasswordTextField.swift // CrifanLibSwift // // Created by licrifan on 16/7/8. // Copyright © 2016年 licrifan. All rights reserved. // import UIKit class PasswordTextField: CommonTextField, UITextFieldDelegate { var realText:String { didSet { print(“self.text=\(self.text), realText=\(realText)”) updateMaskStr() } } var maskChar:Character init(frame: CGRect = CGRectZero, maskChar:Character = “*”) { print(“frame=\(frame), maskChar=\(maskChar)”) self.realText = “” self.maskChar = maskChar super.init(frame: frame) self.secureTextEntry = false self.addTarget(self, action: #selector(self.textFiledEditingChanged(_:)), forControlEvents: UIControlEvents.EditingChanged) self.delegate = self } required init?(coder aDecoder: NSCoder) { fatalError(“init(coder:) has not been implemented”) } func updateMaskStr(){ print(“before update: self.text=\(self.text), self.realText=\(self.realText)”) //change real text to mask char var maskStr = “” for _ in self.realText.characters { maskStr += String(self.maskChar) } self.text = maskStr print(“after update: self.text=\(self.text), self.realText=\(self.realText)”) } func textFiledEditingChanged(textField: UITextField) { print(“textField=\(textField), textField.text=\(textField.text)”) updateMaskStr() } func textField(textField: UITextField, shouldChangeCharactersInRange range: NSRange, replacementString string: String) -> Bool { print(“textField=\(textField), range=\(range), string=\(string)”) var allow = true let curText = self.realText let updatedStr:String = (curText as NSString).stringByReplacingCharactersInRange(range, withString: string) if updatedStr.characters.count > LoginRegisterPasswordLengthMax { print(“password exceed max length \(LoginRegisterPasswordLengthMax)”) allow = false } if allow { self.realText = updatedStr } print(“curText=\(curText), updatedStr=\(updatedStr), self.realText=\(self.realText)”) return false } } |
调用方式：
EditInfoView.swift： class EditInfoView: UIView { var passwordTextField:PasswordTextField init(editMode:EditInfoMode) { self.passwordTextField = PasswordTextField() self.addSubview(self.passwordTextField) if self.passwordTextField.notHidden { //5. password text var passwordPlaceholder = “密码(6-20位)” if self.editMode == .ChangeLoginPassword { passwordPlaceholder = “旧密码(6-20位)” } else if self.editMode == .ForgotPassword { passwordPlaceholder = “输入新密码(6-20位)” } self.passwordTextField.placeholder = passwordPlaceholder self.passwordTextField.returnKeyType = UIReturnKeyType.Go // self.passwordTextField.secureTextEntry = true constrain(passwordTextField, smsCodeTextField, phoneTextField) {passwordTextField, smsCodeTextField, phoneTextField in passwordTextField.centerX == passwordTextField.superview!.centerX passwordTextField.width == passwordTextField.superview!.width – 2 * LoginRegisterPaddingX passwordTextField.height == CommonTextFieldHeight if self.editMode == .ChangeLoginPassword { passwordTextField.top == passwordTextField.superview!.top + EditInfoViewTopPadding } else { passwordTextField.top == smsCodeTextField.bottom + EditInfoViewCommonPaddingY } } } } EditInfoViewController.swift： isValid = validatePassword(self, alertPrefix: alertPrefix, passwordStr: self.editInfoView.passwordTextField.realText, doAlertWhenInvalid: doAlertWhenInvalid) |
可以工作了：
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