Swift - 生成各种控件的工厂类(包含标签,按钮,输入框等)

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在iOS开发中,页面里有时会大量的用到一些控件,如果要一个个单独创建再设置样式的话就显得很麻烦。我们可以创建一个生成各种控件的工厂类,这样在需要的时候调用下就可以了。
下面以一个自定义的工厂类为例,其中提供了文本标签,按钮,文本输入框,分段单选控件的生成效果图如下:
工厂类:ViewFactory.swift
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@H_403_116@ 50
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import UIKit
class ViewFactory
{
/**
* 控件默认尺寸
*/
class func getDefaultFrame() -> CGRect
{
let defaultFrame = CGRectMake (0,100,30)
return defaultFrame
}
createControl(type: String ,title:[ ],action: Selector AnyObject ) -> UIView
{
switch (type)
{
case "label" :
return ViewFactory .createLabel(title[0])
"button" :
.createButton(title[0],action: action,
sender: sender as UIViewController )
"text" :
@H_403_333@.createTextField(title[0],
UITextFieldDelegate )
"segment" :
.createSegment(title,sender:
sender )
default :
.createLabel(title[0])
}
}
/**
* 创建按钮控件
*/
createButton(title: )-> UIButton
{
var button = UIButton (frame: .getDefaultFrame())
button.backgroundColor = UIColor .orangeColor()
button.setTitle(title,forState:. Normal )
button.titleLabel!.textColor = .whiteColor()
button.titleLabel!.font = UIFont .systemFontOfSize(14)
button.addTarget(sender,action:action,forControlEvents: UIControlEvents . TouchUpInside )
button
}
/**
* 创建文本输入框控件
*/
createTextField(value: )
-> UITextField
{
textField = UITextField .getDefaultFrame())
textField.backgroundColor = .clearColor()
textField.textColor = .blackColor()
textField.text = value
textField.borderStyle = UITextBorderStyle RoundedRect
textField.adjustsFontSizeToFitWidth = true
@H_405_502@textField.delegate = sender
textField
}
/**
* 创建分段单选控件
*/
createSegment(items: [ )
UISegmentedControl
{
segment = UISegmentedControl (items:items)
segment.frame = .getDefaultFrame()
//segment.segmentedControlStyle = UISegmentedControlStyle.Bordered
segment.momentary = false
segment.addTarget(sender,147)!important">ValueChanged )
segment
}
/**
* 创建文本标签控件
*/
createLabel(title: UILabel
{
label = UILabel ()
label.textColor = .blackColor();
label.backgroundColor = .whiteColor();
label.text = title;
label.frame = .getDefaultFrame()
label.font = (name: "HelveticaNeue-Bold" label
}
}

工厂类的使用:
49
ViewController : {
txtNum: !
segDimension: !
btn: !
override viewDidLoad() {
super .viewDidLoad()
// Do any additional setup after loading the view,typically from a nib.
setupControls()
}
setupControls()
{
//创建文本标签
labelNum = .createLabel( "阈值:" )
labelNum.frame = CGRect (x: 20,y: 100,width: 60,height: 30)
self .view.addSubview(labelNum)
labelDm = "维度:" labelDm.frame = 403_333@.view.addSubview(labelDm)
//创建文本输入框
txtNum = .createTextField( "" ( "numChanged" ),sender: )
txtNum.frame = (x:80,y:100,width:200,height:30)
txtNum.returnKeyType = UIReturnKeyType Done
.view.addSubview(txtNum)
//创建分段单选控件
segDimension = .createSegment([ "3x3" "4x4" "5x5" "dimensionChanged:" sender: )
segDimension.frame = .view.addSubview(segDimension)
segDimension.selectedSegmentIndex = 1
//创建按钮控件
btn = .createButton( "确定" nil )
btn.frame.origin = CGPointMake (80,300)
.view.addSubview(btn)
}
didReceiveMemoryWarning() {
.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}

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