ViewControllerGraph

class ViewControllerGraph : UIViewController

The UIViewController subclass for the top half of the app’s UI. It controls the bifocal display utilising the SwiftCharts library, referenced in the documentation.

Chart Area Variables

  • DatePicker used to change and display date

    Declaration

    Swift

    let picker: UIDatePicker

  • Initializes the app to today

    Declaration

    Swift

    var today: Date
  • nc

    Declares Notifications

    Declaration

    Swift

    let nc: NotificationCenter

  • Array storing date and time info needed for plot. To be updated with real-time data.

    Declaration

    Swift

    var rawData: [String]

  • Array storing past glucose measurements. To be updated with real-time data from wearables.

    Declaration

    Swift

    var rawValues: [Double]

Methods

  • Outlet function for if the UISwipeGestureRecognizer detects a right swipe. It then proceeds to update the date by subtracting a day from the current viewed date and updates the bifocal display and creates a notification to synchronize the app.

    Declaration

    Swift

    @IBAction
func rightGesture(_ sender: UISwipeGestureRecognizer)

  • Outlet function for if the UISwipeGestureRecognizer detects a left swipe. It then proceeds to update the date by adding a day from the current viewed date and updates the bifocal display and creates a notification to synchronize the app.

    Declaration

    Swift

    @IBAction
func leftGesture(_ sender: UISwipeGestureRecognizer)

  • This function is an override of the same function in the superclass which is called after the view has loaded. It calls the functions responsible for rotating the sideView containers, creating the DatePicker, update any settings and add the notification listeners.

    Declaration

    Swift

    override func viewDidLoad()

    Return Value

    Null

  • Loads data from arrays into core data on first launch for test purposes

    Declaration

    Swift

    func loadData()

    Return Value

    Null

  • Rotates the sideView Containers by (+/-)45degrees about the y axis to give the impression of perspective.

    Declaration

    Swift

    func sideTransforms()

    Return Value

    Null

  • Notifications for when events are added

    Declaration

    Swift

    func addNotifications()

  • Called when a notification is received after food, exercise or insulin has been added to Core Data. It reloads the chart data and displays it.

    Declaration

    Swift

    @objc
private func dataUpdated()

  • Registers settings bundle. Creates a Notification Listener to detect when a change has been made to the Settings.

    Declaration

    Swift

    func settingPreferences()

  • Detects which changes that have been made to the Settings and apply them to the UI.

    Declaration

    Swift

    @objc
func defaultsChanged()

  • Function called when a Notification is detected upon the date being changed. Used to synchronize the app.

    Declaration

    Swift

    @objc
func setDay(notification: Notification)

  • Creates a Notification used to synchronize the Date throughout the app.

    Declaration

    Swift

    func updateDay()

  • Re-initializes the chart and sideViews with the new data corresponding to the updated Date.

    Declaration

    Swift

    private func updateViews()

  • Takes the date as argument and converts it to the format ‘weekday day month, year’, then places it in the DatePicker.

    • - Parameter date: Date to be transformed

    Declaration

    Swift

    func formatWeekday(date: Date)

  • Create a date picker and formats today’s date as required and displays it.

    Declaration

    Swift

    func createDatePicker()

  • Function called after the user has finished with the DatePicker and synchronizes the date used for the chart with the viewController.

    Declaration

    Swift

    @objc
func donePressed()

  • Calculates the minimum, maximum and mean average for daily glucose measurements and updates the CustomView’s member data.

    Declaration

    Swift

    private func calcRanges(Arr: [Double], view: CustomView)

    Parameters

    Arr

    Double Array, Glucose measurements for a day.
    view

    CustomView, to be updated with calculated values.

  • Frame settings for chart area and axis.

    Declaration

    Swift

    fileprivate lazy var chartSettings: ChartSettings { get set }

  • Plots glucose, meals, exercise, insulin and predicted glucose data in Layers to create the chart featured in the Bifocal Display. Draws popups and attach messages to them based on Core Data. Change of dates gets passed in to update chart.

    Declaration

    Swift

    private func initChart()