iOS Line Chart highlight color - ios

Question

I'm using charts 3.2.2 iOS version. I a trying to plot a line chart. In the line chart whenever user taps on the value points a highlight line would show up. Is there any way I can hide or change this highlight line color. Another issue I'm facing is the bubble won't show up for the first entry. I found a lot of solutions online but nothing works for me. Any help will be appreciated.
scoreLineChart.legend.form = .none
scoreLineChart.rightAxis.enabled = false
scoreLineChart.xAxis.labelPosition = .bottom
scoreLineChart.xAxis.drawGridLinesEnabled = false
scoreLineChart.dragEnabled = false
scoreLineChart.doubleTapToZoomEnabled = false
scoreLineChart.xAxis.granularityEnabled = true
scoreLineChart.xAxis.granularity = 1.0
scoreLineChart.leftAxis.axisMinimum = 0
scoreLineChart.leftAxis.axisMaximum = 100.0
scoreLineChart.leftAxis.setLabelCount(5, force: true)
scoreLineChart.xAxis.valueFormatter = valueFormatter
scoreLineChart.xAxis.avoidFirstLastClippingEnabled = true
scoreLineChart.pinchZoomEnabled = false
let marker = BalloonMarker(color: UIColor(hex: "#58595b"),
font: UIFont(name: "Avenir-Heavy", size: 14)!,
textColor: .white,
insets: UIEdgeInsets(top: 8, left: 8, bottom: 20, right: 8))
marker.chartView = scoreLineChart
marker.minimumSize = CGSize(width: 80, height: 40)
scoreLineChart.marker = marker
After adding data entries
let setOne = LineChartDataSet(values: lineChartEntry, label: "") //Here we convert lineChartEntry to a LineChartDataSet
setOne.mode = .cubicBezier
setOne.drawValuesEnabled = true
setOne.lineWidth = 1
setOne.circleRadius = 3
setOne.drawCircleHoleEnabled = false
setOne.valueFont = .systemFont(ofSize: 9)
setOne.formLineWidth = 1
setOne.formSize = 15
setOne.setCircleColor(ChartColorTemplates.colorFromString("#ffcc1a29"))
if !isSingelValue {
setOne.setColor(ChartColorTemplates.colorFromString("#ffcc1a29"))
}else {
setOne.setColor(UIColor.clear)
}
let data = LineChartData(dataSet: setOne)
data.addDataSet(setOne) //Adds the line to the dataSet
scoreLineChart.xAxis.axisMinimum = 0
scoreLineChart.data = data //finally - it adds the chart data to the chart and causes an update
// scoreLineChart.data?.setValueFormatter(valueFormatter)
scoreLineChart.chartDescription?.text = "" // Here we set the description for the graph
scoreLineChart.notifyDataSetChanged()

Answer 1

You just need to set drawHorizontalHighlightIndicatorEnabled drawVerticalHighlightIndicatorEnabled to false to hide grid lines.
let set1 = ScatterChartDataSet(entries: values1, label: "DS 1")
set1.drawHorizontalHighlightIndicatorEnabled = false
set1.drawVerticalHighlightIndicatorEnabled = false

Answer 2

Is there any way I can hide or change this highlight line color.
To show/hide or change the highlight line color, edit the properties of your ChartDateSet
let setOne = LineChartDataSet(values: lineChartEntry, label: "")
setOne.highlightColor = .red // color of the line
setOne.highlightWidht = 2.0 // width of the line
setOne.drawHorizontalHighlightIndicatorEnabled = false // hide horizontal line
setOne.drawVerticalHighlightIndicatorEnabled = false // hide vertical line
Another issue I'm facing is the bubble won't show up for the first entry.
And sadly I cannot reproduce this issue with the BallonMarker.swift from Charts github repository. And It is not clear which one is the first entry of your data from the image you provided.
I tried add a "first entry" to my chart but the BallonMarker works prefectly.