ChartViewDelegate

[alimardani1994]

Value of type 'ViewController' does not conform to 'ChartViewDelegate' in assignment

I've implement ChartViewDelegate but horizontalbarchart cannot recognise it and show me above error.

[liuxuan30]

Check out ChartsDemo for ref.

[alimardani1994]

class RiseAndFallViewController: UIViewController,ChartViewDelegate {
func chartValueSelected(chartView: ChartViewBase, entry: ChartDataEntry, dataSetIndex: Int, highlight: Highlight) {
print("")
}

@IBOutlet weak var RiseAndFall: HorizontalBarChartView!

override func viewDidLoad() {
RiseAndFall.delegate = self
}
}

this is my code, and I'm getting above error, could you help me?