Health Domain

ViewControllerHealth

Controls all UI elements in the open health domain

Image of open health domain

Features

• Switches to track illness and stress
• Filterable table showing summary information about previous days
• Favouriting system to save and view previous day logs

Illness and Stress switches

• When turned on, stores start date. When turned off, adds start and end date to an illness/stress log. This allows duration to be calculated as a computed property of Illness and Stress.

Table

• Setting cell labels: ViewControllerHealth.tableView(_:cellForRowAt:) uses fetched objects to set the labels of the table’s cells

  

  Image of Health table cell

• Expanding table cells: When a cell is selected it will expand or contract to show/hide the low/avg/high of that day’s glucose logs
• Displaying summaries of previous day’s information: Previous Day logs are fetched, then filtered based on user’s selected filters, such as whether the user had a hypoglycaemic glucose value on that day and the number of previous days to show. Icons highlighted green display whether that day contained a Hypo, Hyper, Exercise log, Stress or Illness.

  

  Summary icons from left to right: Hypo, Hyper, Exercise, Stress and Illness

• View button: Optional function tableCellDelegate.didPressViewDayButton(_:) allows a button in the cell to post a notification that ViewControllerGraph picks up using an observer, to display that Day on the graph.

func didPressViewDayButton(_ tag: Int) {
    let nc = NotificationCenter.default
    nc.post(name: Notification.Name("setDay"), object: (loggedDays[tag].date)!)
}

Image of code in ViewControllerHealth to allow cell ‘view’ buttons to change day displayed on graph

Favouriting System

• Favouriting: If a user clicks the star of a day cell it will highlight in the colour of the domain to symbolise it has been favourited. This will call a function to add the Day to the favourites object’s relationships.
• Choosing from favourites: When the star in the data entry section is selected, it will highlight in the colour of the domain. The table will update to display Day‘ logs which are favourited instead of the previous day summaries. The user can use the view button to display it on the graph.

Future Work

• Add status indicators to show summary information for that day or other useful information
• Add customisable filters and tags to Day logs