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[已解决]swift实现自定义的UITextField

Swift crifan 521浏览 0评论

之前已经实现了多个TextField,但是其中很多属性设置都是一样的:

        //3. username/phone number textFiled
        userTextField.textColor = ColorTextFieldText
        userTextField.textAlignment = NSTextAlignment.Left
        userTextField.font = FontTextField
//        userTextField.placeholder = "手机号"
        let attributedUserPlaceholder = NSAttributedString(string: "手机号", attributes: [NSForegroundColorAttributeName : ColorTextFieldPlaceholderGray])
        userTextField.attributedPlaceholder = attributedUserPlaceholder
        userTextField.autocorrectionType = UITextAutocorrectionType.No
        userTextField.keyboardType = UIKeyboardType.PhonePad
        userTextField.returnKeyType = UIReturnKeyType.Done
        userTextField.clearButtonMode = UITextFieldViewMode.WhileEditing
        userTextField.contentVerticalAlignment = UIControlContentVerticalAlignment.Center
        userTextField.layer.borderColor = ColorTextFieldBorderGray.CGColor
        userTextField.layer.borderWidth = WidthBorderTextField
        userTextField.layer.cornerRadius = CornerRaduisTextField
        userTextField.leftView = userLeftPaddingView
        userTextField.leftViewMode = UITextFieldViewMode.Always
        userTextField.delegate = self
       
        constrain(userTextField, appLogoImageView) {userTextField, appLogoImageView in
            userTextField.centerX == userTextField.superview!.centerX
            //userTextField.top == appLogoImageView.bottom + 40
            userTextField.top == appLogoImageView.bottom + 47
            userTextField.width == userTextField.superview!.width 2 * PaddingXTextField
            userTextField.height == HeightTextField
        }
        //4. password textFiled
        passwordTextField.textColor = ColorTextFieldText
        passwordTextField.textAlignment = NSTextAlignment.Left
        passwordTextField.font = FontTextField
//        passwordTextField.placeholder = "密码"
        let attributedPwdPlaceholder = NSAttributedString(string: "密码", attributes: [NSForegroundColorAttributeName : ColorTextFieldPlaceholderGray])
        passwordTextField.attributedPlaceholder = attributedPwdPlaceholder
        passwordTextField.secureTextEntry = true
        passwordTextField.autocorrectionType = UITextAutocorrectionType.No
        passwordTextField.keyboardType = UIKeyboardType.Default
        passwordTextField.returnKeyType = UIReturnKeyType.Go
        passwordTextField.clearButtonMode = UITextFieldViewMode.WhileEditing
        passwordTextField.contentVerticalAlignment = UIControlContentVerticalAlignment.Center
        passwordTextField.layer.borderColor = ColorTextFieldBorderGray.CGColor
        passwordTextField.layer.borderWidth = WidthBorderTextField
        passwordTextField.layer.cornerRadius = CornerRaduisTextField
        passwordTextField.leftView = pwdLeftPaddingView
        passwordTextField.leftViewMode = UITextFieldViewMode.Always
        passwordTextField.delegate = self
        constrain(passwordTextField, userTextField) {passwordTextField, userTextField in
            passwordTextField.centerX == passwordTextField.superview!.centerX
            passwordTextField.top == userTextField.bottom + 12
            passwordTextField.width == userTextField.width
            passwordTextField.height == userTextField.height
        }

此处想要把对应的通用属性,弄到自己自定义的TextField

swift customize textfield

How to customise UITextField in SWIFT

GitHub – raulriera/TextFieldEffects: Custom UITextFields effects inspired by Codrops, built using Swift

TextField – iOS Source Code Examples. iOS App Development Libraries, Controls and Examples – Open Source iPhone/iPad Apps – Code4App.net

最后实现了,自己定义的文本框:

//
//  NormalTextField.swift
//  JianDao
//
//  Created by licrifan on 16/3/18.
//  Copyright © 2016 licrifan. All rights reserved.
//
import UIKit
let ColorButtonBackgroudDarkBlue:UIColor = UIColor(hexString: "#288CDE")!
let ColorTextFieldBorderGray:UIColor = UIColor(hexString: "#D1D1D1")!
let ColorTextFieldPlaceholderGray:UIColor = UIColor(hexString: "#C0C0C0")!
let ColorTextFieldText:UIColor = UIColor(hexString: "#323232")!
let WidthBorderTextField:CGFloat = 1
let CornerRaduisTextField:CGFloat = 6
let PaddingXTextField:CGFloat = 25
let PaddingXTextFieldLefView:CGFloat = 10
let HeightTextField:CGFloat = 34
let FontTextField:UIFont = UIFont.systemFontOfSize(13)
class NormalTextField: UITextField, UITextFieldDelegate {
   
    let leftPaddingView = UIView(frame: CGRectMake(0, 0, PaddingXTextFieldLefView, HeightTextField))
    let borderColor:(active: UIColor, inactive: UIColor) = (ColorButtonBackgroudDarkBlue, ColorTextFieldBorderGray)
   
    override init(frame: CGRect) {
        super.init(frame: frame)
       
        self.textColor = ColorTextFieldText
        self.textAlignment = NSTextAlignment.Left
        self.font = FontTextField
        self.autocorrectionType = UITextAutocorrectionType.No
        self.keyboardType = UIKeyboardType.Default
        self.returnKeyType = UIReturnKeyType.Default
        self.clearButtonMode = UITextFieldViewMode.WhileEditing
        self.contentVerticalAlignment = UIControlContentVerticalAlignment.Center
        self.layer.borderColor = ColorTextFieldBorderGray.CGColor
        self.layer.borderWidth = WidthBorderTextField
        self.layer.cornerRadius = CornerRaduisTextField
        self.leftView = leftPaddingView
        self.leftViewMode = UITextFieldViewMode.Always
        self.secureTextEntry = false
        self.returnKeyType = UIReturnKeyType.Done
    }
   
    convenience init(placeHolderStr:String){
        self.init(frame: CGRectZero)
       
        let attributedPlaceholder = NSAttributedString(string: placeHolderStr, attributes: [NSForegroundColorAttributeName : ColorTextFieldPlaceholderGray])
        self.attributedPlaceholder = attributedPlaceholder
    }
    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
   
    override func willMoveToSuperview(newSuperview: UIView!) {
        print("willMoveToSuperview newSuperview=\(newSuperview)")
        if newSuperview != nil {
            NSNotificationCenter.defaultCenter().addObserver(self, selector: "textFieldDidEndEditing", name:UITextFieldTextDidEndEditingNotification, object: self)
           
            NSNotificationCenter.defaultCenter().addObserver(self, selector: "textFieldDidBeginEditing", name:UITextFieldTextDidBeginEditingNotification, object: self)
        } else {
            NSNotificationCenter.defaultCenter().removeObserver(self)
        }
    }
   
    func textFieldDidBeginEditing() {
        print("textFieldDidBeginEditing")
        self.layer.borderColor = borderColor.active.CGColor
    }
   
    func textFieldDidEndEditing() {
        print("textFieldDidEndEditing")
        self.layer.borderColor = borderColor.inactive.CGColor
        self.resignFirstResponder()
    }
}

调用方式:

    var userTextField:UITextField
    var passwordTextField:UITextField
    init(){
        self.userTextField = NormalTextField(placeHolderStr: "手机号")
        self.passwordTextField = NormalTextField(placeHolderStr: "密码")
}
    override func viewDidLoad() {
        super.viewDidLoad()
        
        self.view.addSubview(userTextField)
        self.view.addSubview(passwordTextField)
        
        //3. username/phone number textFiled
        userTextField.keyboardType = UIKeyboardType.PhonePad
        constrain(userTextField, appLogoImageView) {userTextField, appLogoImageView in
            userTextField.centerX == userTextField.superview!.centerX
            userTextField.top == appLogoImageView.bottom + 47
            userTextField.width == userTextField.superview!.width 2 * PaddingXTextField
            userTextField.height == HeightTextField
        }
        //4. password textFiled
        passwordTextField.returnKeyType = UIReturnKeyType.Go
        passwordTextField.secureTextEntry = true
        passwordTextField.delegate = self
        constrain(passwordTextField, userTextField) {passwordTextField, userTextField in
            passwordTextField.centerX == passwordTextField.superview!.centerX
            passwordTextField.top == userTextField.bottom + 12
            passwordTextField.width == userTextField.width
            passwordTextField.height == userTextField.height
        }
    }
    // MARK: – UITextFieldDelegate
    func textFieldShouldReturn(textField: UITextField) -> Bool {
        textField.resignFirstResponder()
       
        if textField == passwordTextField {
            loginAction()
        }
        return true
    }

显示效果:

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