donion rings

.gitignore

@@ -0,0 +1,24 @@
+
+# Xcode
+#
+# gitignore contributors: remember to update Global/Xcode.gitignore, Objective-C.gitignore & Swift.gitignore
+
+## User settings
+xcuserdata/
+
+## compatibility with Xcode 8 and earlier (ignoring not required starting Xcode 9)
+*.xcscmblueprint
+*.xccheckout
+
+## compatibility with Xcode 3 and earlier (ignoring not required starting Xcode 4)
+build/
+DerivedData/
+*.moved-aside
+*.pbxuser
+!default.pbxuser
+*.mode1v3
+!default.mode1v3
+*.mode2v3
+!default.mode2v3
+*.perspectivev3
+!default.perspectivev3

Project308/Base.lproj/Main.storyboard

@@ -25,11 +25,40 @@
                                 <nil key="textColor"/>
                                 <nil key="highlightedColor"/>
                             </label>
+                            <pickerView contentMode="scaleToFill" fixedFrame="YES" translatesAutoresizingMaskIntoConstraints="NO" id="l0r-dF-pdB">
+                                <rect key="frame" x="0.0" y="141" width="375" height="162"/>
+                                <autoresizingMask key="autoresizingMask" widthSizable="YES" flexibleMaxY="YES"/>
+                                <connections>
+                                    <outlet property="dataSource" destination="Qye-JV-Pqh" id="02w-lm-Z9W"/>
+                                    <outlet property="delegate" destination="Qye-JV-Pqh" id="m1q-dS-MSb"/>
+                                </connections>
+                            </pickerView>
+                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="fgz-0X-Yzp">
+                                <rect key="frame" x="169" y="585" width="36" height="30"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <state key="normal" title="Clear"/>
+                                <connections>
+                                    <action selector="clearPressed:" destination="Qye-JV-Pqh" eventType="touchUpInside" id="k3c-P9-NUQ"/>
+                                </connections>
+                            </button>
+                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="k0f-EI-Kte">
+                                <rect key="frame" x="170" y="491" width="34" height="30"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <state key="normal" title="Start"/>
+                                <connections>
+                                    <action selector="startStopPressed:" destination="Qye-JV-Pqh" eventType="touchUpInside" id="0V3-fL-bco"/>
+                                </connections>
+                            </button>
                         </subviews>
                         <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
                         <viewLayoutGuide key="safeArea" id="cf5-pJ-AmR"/>
                     </view>
                     <tabBarItem key="tabBarItem" title="Timer" id="btY-Uw-RMI"/>
+                    <connections>
+                        <outlet property="startStopButton" destination="k0f-EI-Kte" id="OT6-bi-f84"/>
+                        <outlet property="timeLabel" destination="SOV-8m-KXd" id="hM0-Ka-UhC"/>
+                        <outlet property="timePicker" destination="l0r-dF-pdB" id="VFa-sJ-uik"/>
+                    </connections>
                 </viewController>
                 <placeholder placeholderIdentifier="IBFirstResponder" id="Mav-Yg-pGe" userLabel="First Responder" sceneMemberID="firstResponder"/>
             </objects>

Project308/TimerViewController.swift

@@ -8,7 +8,132 @@
 
 import UIKit
 
-class TimerViewController: UIViewController {
+class TimerViewController: UIViewController, UIPickerViewDataSource, UIPickerViewDelegate {
+    var hour = 0.0
+    var minute = 0.0
+    var second = 0.0
+    var time = 0.0
+    
+    
+    @IBAction func clearPressed(_ sender: UIButton) {
+        hour = 0.0
+        minute = 0.0
+        second = 0.0
+        time = 0.0
+        elapsedTime = 0.0
+        timeLabel.text = "00:00:00"
+        timePicker.isHidden = false
+        timePicker.reloadAllComponents()
+        isRunning = false
+    }
+    
+    @IBAction func startStopPressed(_ sender: UIButton) {
+        if isRunning == false {
+            isRunning = true
+            timePicker.isHidden = true
+            startStopButton.setTitle("Stop", for: UIControl.State.normal)
+            timeLoop()
+        }
+        else{
+            isRunning = false
+            timePicker.isHidden = false
+            timePicker.reloadAllComponents()
+            startStopButton.setTitle("Start", for: UIControl.State.normal)
+        }
+    }
+    
+    @IBOutlet weak var startStopButton: UIButton!
+    
+    @IBOutlet weak var timeLabel: UILabel!
+    
+    @IBOutlet weak var timePicker: UIPickerView!
+    
+    
+    
+    func numberOfComponents(in pickerView: UIPickerView) -> Int {
+        return 3
+    }
+    
+    func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
+        if component == 0{
+            return 99
+        }
+        else{
+            return 60
+        }
+    }
+    
+    func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
+        return "\(row)"
+    }
+    
+    func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
+        hour = Double(timePicker.selectedRow(inComponent: 0))
+        minute = Double(timePicker.selectedRow(inComponent: 1))
+        second = Double(timePicker.selectedRow(inComponent: 2))
+        time = hour*3600 + minute*60 + second
+        let timeString = "\(timePicker.selectedRow(inComponent: 0)):\(timePicker.selectedRow(inComponent: 1)):\(timePicker.selectedRow(inComponent: 2))"
+        timeLabel.text! = timeString
+    }
+    
+    var isRunning = false
+    var elapsedTime = 0.0
+    
+    func timeLoop() {
+        DispatchQueue.global(qos: .background).async {
+            var currentTime = Date()
+            var previousTime = currentTime
+            
+            while(self.isRunning) {
+                currentTime = Date()
+                self.elapsedTime += currentTime.timeIntervalSince(previousTime)
+                previousTime = currentTime
+                
+                let hours = Int((self.time-self.elapsedTime))/3600
+                let minutes = (Int((self.time-self.elapsedTime))%3600)/60
+                let seconds = (Int((self.time-self.elapsedTime))%3600)%60
+                
+                
+                
+                let hourStr = String.init(format: "%d", hours)
+                let minuteStr = String.init(format: "%02d", minutes)
+                let secondsStr = String.init(format: "%02d", seconds)
+                let timeString = "\(hourStr):\(minuteStr):\(secondsStr)"
+                
+                DispatchQueue.main.async {
+                    self.timeLabel.text! = timeString
+                }
+                
+                if hours == 0 && minutes == 0 && seconds == 0{
+                    let alertController = UIAlertController(title: "TIME IS UP",
+                                                            message: "YOUR TIMER IS OVER",
+                                                            preferredStyle: UIAlertController.Style.alert)
+                    
+                    let defaultAction = UIAlertAction(title: "STOP BEING LAZY",
+                                                      style: UIAlertAction.Style.cancel,
+                                                      handler: nil)
+                    
+                    // add the buttons into the alert controller object
+                    alertController.addAction(defaultAction)
+                    
+                    // display
+                    self.present(alertController, animated: true, completion: nil)
+                    
+                    self.finish()
+                    self.isRunning = false
+                }
+                
+                usleep(1000)
+            }
+        }
+    }
+    
+    func finish(){
+        elapsedTime = 0
+        startStopButton.setTitle("Start", for: UIControl.State.normal)
+        timePicker.isHidden = false
+        timePicker.reloadAllComponents()
+    }
 
     override func viewDidLoad() {
         super.viewDidLoad()
@@ -17,6 +142,8 @@ class TimerViewController: UIViewController {
     }
     
     
+
+    
     /*
     // MARK: - Navigation