Is it possible to show x-Axis gridlines when there's only one ChartDataEntry?

[JCMcLovin]

I'm using Charts 3.1.1 and I can't figure out how to make the chart display x-Axis gridlines when there is only one data point to display:

In this example, I want the chart to display the xAxis gridlines and labels after Apr 25, which would be Apr 26, Apr 27, Apr28, Apr 29, Apr 30, May 1 because I've set my min and max like this:

chartView.setVisibleXRange(minXRange: 7.0, maxXRange: 7.0)

The date(s) on the x-Axis come from a property of each ChartDataEntry. XAxisRenderer uses xAxis.entries to generated the gridlines in its renderGridlines(context:) method. So, in my example of just one datapoint, that means there's just one entry so I get the single xAxis gridline.

I created this class to generate enough dates to fill in the blanks when there isn't a datapoint for each subsequent day that I want to show:

class AxisValuesGenerator: NSObject {
    var days: [String]? = []
    
    func generatexAxisDates(liftEvents: [LiftEvent]) -> [String]? {
        var dates: [Date] = []
        let intervalBetweenDates: TimeInterval = 3600 * 24 // 3600 = 1 hour
        let firstDate = (liftEvents.first?.date)! // - intervalBetweenDates
        var lastDate = liftEvents.last?.date
        
        if Double(liftEvents.count) < 7 {
            let daysToAdd = intervalBetweenDates * Double(7 - liftEvents.count)
            lastDate = lastDate?.addingTimeInterval(daysToAdd)
            for _ in 0...6 {
                dates = self.intervalDates(from: firstDate, to: lastDate!, with: intervalBetweenDates)
            }
        } else {
            dates = self.intervalDates(from: firstDate, to: lastDate!, with: intervalBetweenDates)
        }
        
        let dateFormatter = DateFormatter()
        dateFormatter.dateFormat = "MMM d"
        
        days = dates.map {dateFormatter.string(from: $0)}
        
        return days
        
    }

func intervalDates(from startDate: Date, to endDate:Date, with interval:TimeInterval) -> [Date] {
    guard interval > 0 else { return [] }
    
    var dates:[Date] = [startDate]
    var currentDate = startDate
    
    while currentDate <= endDate {
        currentDate = currentDate.addingTimeInterval(interval)
        dates.append(currentDate)
    }
    
    return dates
}

and it does generate the dates I want:

▿ Optional<Array<String>>   ▿ some : 7 elements
   - 0 : "Apr 25"
   - 1 : "Apr 26"
   - 2 : "Apr 27"
   - 3 : "Apr 28"
   - 4 : "Apr 29"
   - 5 : "Apr 30"
   - 6 : "May 1"
   - 7 : "May 2"

but the chart won't display them or their gridlines.

How can I get those vertical x-Axis gridlines to appear?