本文章讲解swift的基本控件基本方法，以下控件均为懒加载写法，您可以照着联想出oc中的功能
1.UILabel 文本标签
2.UIImageView 图片
3.UITextField 文本编辑
4.UIButton 按钮
5.UITextView 可滚动文本编辑
6.UISwitch 开关
7.UIStepper 步进器
8.UISlider 滑动控件
9.UIProgressView 进度条
10.UISegmentedControl 标签控件
11.UIActivityIndicatorView 网络状态控件
12.UIDatePicker 日期选择器
13.UITableView 列表视图
14.UICollectionView 九宫格视图
15.WKWebView web视图
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image.png
1.UILabel 文本标签
lazy var versionLabel : UILabel = {
let versionLabel = UILabel()
versionLabel.font = UIFont(name:"Zapfino", size:10)
versionLabel.textAlignment = .center
versionLabel.shadowColor = UIColor.gray //灰色阴影
versionLabel.shadowOffset = CGSize(width:1.5, height:1.5) //阴影的偏移量
versionLabel.lineBreakMode = .byTruncatingTail
let attributeString = NSMutableAttributedString(string:"welcome to swift")
attributeString.addAttribute(NSAttributedString.Key.font, value: UIFont(name: "HelveticaNeue-Bold", size: 16)!, range: NSMakeRange(0,6))
attributeString.addAttribute(NSAttributedString.Key.foregroundColor, value: UIColor.blue, range: NSMakeRange(0, 3))
attributeString.addAttribute(NSAttributedString.Key.backgroundColor, value: UIColor.green, range: NSMakeRange(3,3))
versionLabel.attributedText = attributeString
return versionLabel
}()
2.UIImageView 图片
lazy var logoImgView : UIImageView = {
let logoImgView = UIImageView()
logoImgView.contentMode = .scaleAspectFill
logoImgView.image = UIImage(named: "g3_portal_through_person")
return logoImgView
}()
3.UITextField 文本编辑
lazy var nameTextField : UITextField = {
let nameTextField = UITextField()
nameTextField.placeholder = "请输入用户手机号"
nameTextField.borderStyle = UITextField.BorderStyle.roundedRect
nameTextField.keyboardType = UIKeyboardType.numberPad
nameTextField.delegate = self
nameTextField.returnKeyType = .done
return nameTextField;
}()
//代理
func textFieldShouldReturn(_ textField: UITextField) -> Bool {
if(passwordTextField.text?.isEqual("dd") ?? false){
print("11");
}
if((passwordTextField.text?.isEqual("ee"))! ){
print("相等")
}
print(textField.text ?? "")
return true
}
func textFieldDidEndEditing(_ textField: UITextField, reason: UITextField.DidEndEditingReason) {
print(textField.text ?? "")
}
4.UIButton 按钮
lazy var loginBtn : UIButton = {
let loginBtn = UIButton()
loginBtn.setTitle("登录", for: .normal)
loginBtn.setTitleColor(UIColor.orange, for: .normal)
loginBtn.setTitleColor(UIColor.green, for: .selected)
loginBtn.addTarget(self, action: #selector(testAction(button:)), for: .touchUpInside)
loginBtn.layer.borderColor = UIColor.orange.cgColor;
loginBtn.layer.masksToBounds = true;
loginBtn.layer.borderWidth = 0.5;
loginBtn.layer.cornerRadius = 30;
loginBtn.titleEdgeInsets = UIEdgeInsets(top: 0, left: 0, bottom: 0, right: -20)
loginBtn.imageEdgeInsets = UIEdgeInsets(top: -10, left: -20, bottom: -10, right: 0)
loginBtn.setImage(UIImage(named: "g3_portal_through_person"), for: .normal)
loginBtn.titleLabel?.font = UIFont.boldSystemFont(ofSize: 16)
return loginBtn
}()
//🔘事件
@objc func testAction(button:UIButton){
button.isSelected = !button.isSelected;
// LoginNetRequest.login(self.nameTextField.text! as NSString, self.passwordTextField.text! as NSString) { [weak self] in
let nextVC = NextVC()
self.navigationController?.pushViewController(nextVC, animated: true)
LoginNetRequest.getUserInfo(success: {(response) in
print(response)
})
// }
}
5.UITextView 可滚动文本编辑
lazy var infoTextView : UITextView = {
let infoTextView = UITextView()
infoTextView.layer.borderColor = UIColor.orange.cgColor
infoTextView.layer.cornerRadius = 5
infoTextView.layer.borderWidth = 1
infoTextView.textAlignment = .center
infoTextView.isEditable = false
infoTextView.isSelectable = true
infoTextView.dataDetectorTypes = .all
infoTextView.textContainerInset = UIEdgeInsets(top: 5, left: 5, bottom: 5, right: 5)
infoTextView.text = "从明天起，做一个幸福的人\n喂马，劈柴，周游世界\n从明天起，关心粮食和蔬菜\n我有一所房子，面朝大海，春暖花开\n从明天起，和每一个亲人通信\n告诉他们我的幸福\n那幸福的闪电告诉我的\n我将告诉每一个人\n给每一条河每一座山取一个温暖的名字\n phone:13859222222,\n link:https://www.baidu.com"
let wx = UIMenuItem(title: "微信", action: #selector(openWX))
let menu = UIMenuController()
menu.menuItems = [wx]
return infoTextView
}()
6.UISwitch 开关
lazy var swiftSwitch: UISwitch = {
let swiftSwitch = UISwitch()
swiftSwitch.onTintColor = UIColor.purple
swiftSwitch.tintColor = UIColor.blue
swiftSwitch.thumbTintColor = UIColor.orange
swiftSwitch.addTarget(self, action: #selector(switchDidChanged(_ :)), for: .valueChanged)
return swiftSwitch
}()
//开关事件
@objc func switchDidChanged(_ switch:UISwitch) {
print("switchValueChanged")
}
7.UIStepper 步进器
lazy var stepper: UIStepper = {
let stepper = UIStepper()
stepper.maximumValue = 10
stepper.minimumValue = 2
stepper.stepValue = 2
stepper.isContinuous = true //是否可以按住不放步进
stepper.wraps = true //是否允许循环
stepper.addTarget(self, action: #selector(stepperValueChanged(_ :)), for: .valueChanged)
stepper.transform = CGAffineTransform(scaleX: 1.0, y: 1.0) //放大缩小视图
// stepper.setDecrementImage(UIImage(named:"voice-"), for: .normal)
// stepper.setIncrementImage(UIImage(named:"voice+"), for: .normal)
// stepper.setDividerImage(UIImage(named:"divider"), forLeftSegmentState: .normal, rightSegmentState: .normal)
return stepper
}()
//步进器事件
@objc func stepperValueChanged(_ stepper:UIStepper){
print(stepper.value)
}
8.UISlider 滑动控件
lazy var slider: UISlider = {
let slider = UISlider()
slider.minimumValue = 0
slider.maximumValue = 1
slider.value = 0.3
slider.minimumTrackTintColor = UIColor.green
slider.maximumTrackTintColor = UIColor.orange
// slider.minimumValueImage = UIImage(named:"voice-") //左边图标
// slider.maximumValueImage = UIImage(named:"voice+") //右边图标
// slider.setThumbImage(UIImage(named:"voice"), for: .normal)//设置滑块图片
slider.addTarget(self, action: #selector(sliderValueChanged(_ :)), for: .valueChanged)
return slider
}()
//slider事件
@objc func sliderValueChanged(_ slider:UISlider){
print(slider.value)
}
9.UIProgressView 进度条
lazy var progress: UIProgressView = {
let progress = UIProgressView(progressViewStyle: UIProgressView.Style.default)
progress.trackTintColor = UIColor.red
progress.progressTintColor = UIColor.green
progress.tintColor = UIColor.orange
progress.setProgress(0.7, animated: true)
return progress
}()
10. UISegmentedControl分段控制器
lazy var segment: UISegmentedControl = {
let items = ["昨天","今天","明天"]
let segment = UISegmentedControl(items: items)
segment.selectedSegmentIndex = 1
segment.addTarget(self, action: #selector(segmentChanged(_ :)), for: .valueChanged)
return segment
}()
//分段控制器事件
@objc func segmentChanged(_ segment: UISegmentedControl) {
print(segment.selectedSegmentIndex)
}
11.UIActivityIndicatorView 网络状态控件
lazy var activity: UIActivityIndicatorView = {
let activity = UIActivityIndicatorView.init(style: UIActivityIndicatorView.Style.gray)
activity.tintColor = UIColor.orange
activity.color = UIColor.green
activity.frame = CGRect(x: 10, y: 100, width: 100, height: 100)
return activity
}()
//开始转动
activity.startAnimating()
12.UIDatePicker 日期选择器
lazy var pickView: UIDatePicker = {
let pickView = UIDatePicker()
pickView.datePickerMode = .date
return pickView
}()
13.UITableView 列表视图
class NextVC: UIViewController ,UITableViewDelegate,UITableViewDataSource
//*************************************************
lazy var dataList: NSMutableArray = {
let dataList = NSMutableArray.init(objects: "财经","新闻","直播","运动","娱乐","军事","生活","体育","国际")
return dataList
}()
lazy var tableView : UITableView = {
let tableView = UITableView.init(frame: CGRect(x: 0, y: 0, width:self.view.bounds.size.width, height: 200), style: .grouped)
/*
let clsName = Bundle.main.infoDictionary!["CFBundleExecutable"] as? String//这是获取项目的名称，
let className=clsName! + "." + "NextTableCell"
let cellClass = NSClassFromString(className)!as! UITableViewCell.Type
tableView.register(cellClass.classForCoder(), forCellReuseIdentifier: "NextTableCell")
*/
//注册cell也可以用以下方法，封装table时可以通过以上string转class的方法实现
tableView.register(NextTableCell.self, forCellReuseIdentifier: "NextTableCell")
tableView.delegate = self
tableView.dataSource = self
return tableView
}()
//table常用代理
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return dataList.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let identifier : String = "NextTableCell"
/*
let cell:UITableViewCell = tableView.dequeueReusableCell(withIdentifier: identifier, for: indexPath)
let protocolCell:JoyTableProtocol = cell as! JoyTableProtocol
*/
以上方法用于按协议封装cell时使用，以下为直接复用已知类型cell时使用
let protocolCell:NextTableCell = tableView.dequeueReusableCell(withIdentifier: "NextTableCell", for: indexPath)as! NextTableCell
let model = dataList[indexPath.row]
protocolCell.setCellModel(model)
return cell
}
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
pickView.isHidden = !pickView.isHidden
}
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
return 40
}
//tableCell
class NextTableCell: UITableViewCell, JoyTableProtocol {
var nameLabel: UILabel = {
let nameLabel = UILabel()
nameLabel.textColor = UIColor.orange
nameLabel.font = UIFont.systemFont(ofSize: 14)
return nameLabel
}()
override func awakeFromNib() {
super.awakeFromNib()
// Initialization code
}
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
}
override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
super.init(style: style, reuseIdentifier: reuseIdentifier)
self.addSubViews()
}
func addSubViews() {
nameLabel.frame = CGRect(x: 15, y: 10, width: 200, height: 20)
self.contentView.addSubview(nameLabel)
}
func setCellModel(_ model: Any) {
nameLabel.text = (model as! String)
}
override func setSelected(_ selected: Bool, animated: Bool) {
super.setSelected(selected, animated: animated)
// Configure the view for the selected state
}
}
14.UICollectionView 九宫格视图
class NextVC: UIViewController UICollectionViewDataSource,UICollectionViewDelegate
//*************************************************
lazy var collectionLayout: UICollectionViewFlowLayout = {
let collectionLayout = UICollectionViewFlowLayout.init()
collectionLayout.itemSize = CGSize(width: 80, height: 80)
collectionLayout.minimumLineSpacing = 15
collectionLayout.minimumInteritemSpacing = 15
collectionLayout.scrollDirection = .vertical
collectionLayout.sectionInset = UIEdgeInsets.init(top: 5, left: 5, bottom: 5, right: 5)
// 设置分区头视图和尾视图宽高
// collectionLayout.headerReferenceSize = CGSize.init(width: 375, height: 80)
// collectionLayout.footerReferenceSize = CGSize.init(width: 375, height: 80)
return collectionLayout
}()
lazy var collectionView : UICollectionView = {
let collectionView = UICollectionView.init(frame: CGRect(x: 0, y: 200, width:self.view.bounds.size.width, height: 200), collectionViewLayout: collectionLayout)
let clsName = Bundle.main.infoDictionary!["CFBundleExecutable"] as? String//这是获取项目的名称，
let className=clsName! + "." + "NextCollectionCell"
let cellClass = NSClassFromString(className)!as! UICollectionViewCell.Type
collectionView.register(cellClass.classForCoder(), forCellWithReuseIdentifier: "NextCollectionCell")
collectionView.delegate = self
collectionView.dataSource = self
return collectionView
}()
//collection 代理
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return dataList.count
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell:NextCollectionCell = collectionView.dequeueReusableCell(withReuseIdentifier: "NextCollectionCell", for: indexPath) as! NextCollectionCell
let name = dataList[indexPath.row]
cell.setCellModel(name as! NSString)
return cell
}
func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
let webVC = WebVC()
self.navigationController?.pushViewController(webVC, animated: true)
}
//collectioncell
class NextCollectionCell: UICollectionViewCell {
var nameLabel: UILabel = {
let nameLabel = UILabel()
nameLabel.textColor = UIColor.white
nameLabel.font = UIFont.systemFont(ofSize: 14)
nameLabel.textAlignment = .center
return nameLabel
}()
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
}
override init(frame: CGRect) {
super.init(frame: frame)
self.addSubViews()
}
func addSubViews() {
nameLabel.frame = CGRect(x: 10, y: 10, width: 60, height: 60)
self.contentView.addSubview(nameLabel)
}
func setCellModel(_ name:NSString) {
nameLabel.text = name as String
self.contentView.backgroundColor = self.armColor()
}
func armColor()->UIColor{
let red = CGFloat(arc4random()%256)/255.0
let green = CGFloat(arc4random()%256)/255.0
let blue = CGFloat(arc4random()%256)/255.0
return UIColor(red: red, green: green, blue: blue, alpha: 1.0)
}
}
15.WKWebView web视图
import UIKit
import WebKit
class WebVC: UIViewController ,WKNavigationDelegate{
lazy var webView: WKWebView = {
let webView = WKWebView()
webView.navigationDelegate = self
return webView
}()
override func viewDidLoad() {
super.viewDidLoad()
webView.frame = self.view.bounds
let url = URL(string: "https://www.jianshu.com/p/a56addca1c6b")
let request = URLRequest(url: url!)
webView.load(request)
// webView.load(URLRequest.init(url: URL.init(string: "http://www.163.com")!))
self.view.addSubview(webView)
}
//web delegate
func webView(_ webView: WKWebView, didStartProvisionalNavigation navigation: WKNavigation!) {
print("开始加载")
}
func webView(_ webView: WKWebView, didCommit navigation: WKNavigation!) {
print("开始数据返回")
}
func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {
print("加载成功")
}
func webView(_ webView: WKWebView, didFail navigation: WKNavigation!, withError error: Error) {
print("加载失败")
}
}
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