第一天:Swift秒表加UITableView记录展示

　　参考链接:https://www.jianshu.com/p/5caa93d66d02

　　(默背下代码添加了一个 tableView，重新手打一次，由于时间限制不再进行文字描述。)

　　这里主要记录一点，把定时器加到 runloop 中，模式为 commonModes：

1  RunLoop.current.add(self.time, forMode: .commonModes)

　　要不然滑动 tableView 的时候，定时器会停止，停止滑动的时候定时器又开始执行。

　　参考链接:http://blog.csdn.net/a359696929/article/details/51372539

　　　　　　https://www.cnblogs.com/kenshincui/p/6823841.html

　　　　　　　　　　　　　　　　　　　　　　　　　　

  1 import UIKit
  2 
  3 class ViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {
  4 
  5     @IBOutlet weak var timeLable: UILabel!
  6     @IBOutlet weak var leftButton: UIButton!
  7     @IBOutlet weak var rightButton: UIButton!
  8     @IBOutlet weak var tableView: UITableView!
  9     
 10     var time: Timer!
 11     var stringArr: [String]!
 12     var msInt: Int = 0
 13     var recordCnt: Int = 0
 14     var isStart: Bool = false
 15     
 16     override func viewDidLoad() {
 17         super.viewDidLoad()
 18         // Do any additional setup after loading the view, typically from a nib.
 19         
 20         setupUI()
 21     }
 22     
 23     func numberOfSections(in tableView: UITableView) -> Int {
 24         return 1
 25     }
 26     
 27     func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
 28         return stringArr.count
 29     }
 30     
 31     func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
 32         let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)
 33         
 34         cell.textLabel?.text = String(format: "%d -- %@", indexPath.row + 1, stringArr[indexPath.row])
 35         cell.textLabel?.textColor = UIColor.white
 36         
 37         return cell
 38     }
 39     
 40     @IBAction func leftButtonAction(_ sender: UIButton) {
 41         if !isStart {
 42             msInt = 0
 43             
 44             updateTime()
 45             stringArr.removeAll()

　　　　　　　　　　 self.tableView.reloadData()

 46             
 47             setButtonState(self.leftButton, isEnable: false)
 48             self.leftButton.setTitle("记录", for: .normal)
 49             self.rightButton.setTitle("开始", for: .normal)
 50         } else {
 51             stringArr.append(self.timeLable.text!)
 52             self.tableView.reloadData()
 53         }
 54     }
 55     
 56     @IBAction func rightButtonAction(_ sender: UIButton) {
 57         if !isStart {
 58             isStart = true
 59             
 60             setButtonState(leftButton, isEnable: true)
 61             
 62             self.leftButton.setTitle("记录", for: .normal)
 63             self.rightButton.setTitle("停止", for: .normal)
 64             
 65             self.time = Timer.scheduledTimer(timeInterval: 0.01, target: self, selector: #selector(updateTime), userInfo: nil, repeats: true)

　　　　　　　　　　 RunLoop.current.add(self.time, forMode: .commonModes)

 66         } else {
 67             isStart = false
 68             
 69             self.leftButton.setTitle("复位", for: .normal)
 70             self.rightButton.setTitle("继续", for: .normal)
 71             
 72             self.time.invalidate()
 73             self.time = nil
 74         }
 75     }
 76     
 77     override func didReceiveMemoryWarning() {
 78         super.didReceiveMemoryWarning()
 79         // Dispose of any resources that can be recreated.
 80     }
 81 }
 82 
 83 extension ViewController {
 84     func setupUI() {
 85         
 86         UIApplication.shared.statusBarStyle = .lightContent
 87         
 88         stringArr = [String]()
 89         
 90         self.tableView.rowHeight = 40.0
 91         self.leftButton.layer.cornerRadius = self.leftButton.frame.width / 2
 92         self.rightButton.layer.cornerRadius = self.leftButton.frame.width / 2
 93         
 94         setButtonState(self.leftButton, isEnable: false)
 95     }
 96     
 97     @objc func updateTime() {
 98         if !isStart {
 99             let tempStr = String(format: "%02d:%02d:%02d", 0, 0, 0)
100             self.timeLable.text = tempStr
101         } else {
102             msInt += 1
103             let tempStr = String(format: "%02d:%02d:%02d", msInt / 6000, (msInt / 100) % 60, msInt % 100)
104             self.timeLable.text = tempStr
105         }
106     }
107     
108     func setButtonState(_ btn: UIButton, isEnable: Bool) {
109         btn.isEnabled = isEnable
110         if isEnable {
111             btn.alpha = 1.0
112         } else {
113             btn.alpha = 0.5
114         }
115     }
116 }

 

posted @ 2018-01-16 00:04  鳄鱼不怕牙医不怕  阅读(517)  评论(0)  编辑  收藏  举报