I am trying to use the library https://github.com/danielgindi/Charts but recently it is giving me a problem in this part:
final class CustomDateFormatter: NSObject, IAxisValueFormatter {
private let dateFormatter = DateFormatter()
override init() {
super.init()
dateFormatter.dateFormat = "MMM-yy"
}
func stringForValue(_ value: Double, axis: AxisBase?) -> String {
let newDate = Calendar.current.date(byAdding: .month, value: Int(value), to: Date())
return dateFormatter.string(from: newDate ?? Date()).lowercased()
}
}
The error is:
Cannot find type 'IAxisValueFormatter' in scope