在开发安卓项目的时候经常对于常用的功能进行封装成控件来使用，一个是减少代码量，另一个看起来简洁，而对于苹果开发也喜欢封装成控件，然后再storyboard里面拖拽，对于IOS开发自己属于菜鸟级别所以代码质量不是很高，如果那里有问题，请指出，这里记录一个是备忘另一个希望多多交流。
这篇是自定义输入框，输入框在项目中经常用到，最常见的比如左边是label右边是textfield，效果图如下：
代码如下
//
// TextFieldValidator.swift
// CustomWidget
//
// Created by System Administrator on 15/3/21.
// Copyright (c) 2015年 jwzhangjie. All rights reserved.
//
import UIKit
class TextFieldValidator : UIView{
var txtFlag:UILabel!
var txtFieldFlag:UITextField!
var spacing:CGFloat?
var delegate:UITextFieldDelegate?
required init(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
txtFlag = UILabel()
txtFieldFlag = UITextField()
}
func initWithFrame(labelText:NSString,text:NSString,placeholder:NSString,spacing:CGFloat){
var width:CGFloat = frame.size.width;
var height:CGFloat = frame.size.height;
txtFlag = UILabel(frame: CGRectMake(0,width / 3,height))
txtFlag.backgroundColor = UIColor.clearColor()
txtFlag.textAlignment = NSTextAlignment.Left
self.spacing = spacing
self.addSubview(txtFlag)
txtFieldFlag = UITextField(frame: CGRectMake(width / 3 + spacing,width-width/3 + spacing,height))
txtFieldFlag.borderStyle = UITextBorderStyle.RoundedRect
txtFieldFlag.clearButtonMode = UITextFieldviewmode.Always
self.addSubview(txtFieldFlag)
setText(text)
setLabelText(labelText)
txtFieldFlag.placeholder = placeholder
}
func initWithFrame(labelText:NSString,spacing:CGFloat){
return initWithFrame(labelText,text: "",placeholder: placeholder,spacing: spacing)
}
func initWithFrame(labelText:NSString,placeholder:NSString){
return initWithFrame(labelText,spacing: 0)
}
func setDelegate(delegate:UITextFieldDelegate){
self.delegate = delegate
txtFieldFlag.delegate = delegate
}
func setLeftTextFlag(text:NSString){
txtFlag.text = text
}
func setLabelText(text:NSString){
txtFlag.text = text
}
func setText(text:NSString){
txtFieldFlag.text = text
}
func getText()->NSString{
return txtFieldFlag.text;
}
func setTxtFlagAlignment(option:NSTextAlignment){
txtFlag.textAlignment = option
}
func setSpacing(spacing:CGFloat){
self.spacing = spacing;
txtFieldFlag.frame=CGRectMake(txtFlag.frame.size.width+spacing,self.frame.size.width-txtFlag.frame.size.width-spacing,self.frame.size.height);
}
func setSecureTextEntry(option:Bool){
txtFieldFlag.secureTextEntry = option
}
func setClearButtonMode(mode:UITextFieldviewmode){
txtFieldFlag.clearButtonMode = mode
}
func setReturnKey(type:UIReturnKeyType){
txtFieldFlag.returnKeyType = type
}
}
//
// ViewController.swift
// CustomWidget
//
// Created by System Administrator on 15/3/21.
// Copyright (c) 2015年 jwzhangjie. All rights reserved.
//
import UIKit
class ViewController: UIViewController {
@IBOutlet weak var userName: TextFieldValidator!
@IBOutlet weak var userPasswd: TextFieldValidator!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view,typically from a nib.
userName.initWithFrame("用户名",placeholder: "请输入用户名")
userName.setReturnKey(UIReturnKeyType.Next)
userPasswd.initWithFrame("密码",placeholder: "请输入用户密码")
userPasswd.setSecureTextEntry(true)
userPasswd.setReturnKey(UIReturnKeyType.Done)
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}
注意点：
如何将自定义控件加入storyboard?
由于自定义控件不是系统控件，所以能直接在Xcode中拖拽，首先需要拖拽自定义的父类，比如这里继承的是UIView，所以从Xcode中拖拽一个UIView到storyboard中，然后将UIView的class设置为自定义控件名称
查看类中的所有方法的快捷键？
