iOS Charts, line chart doesn't refresh datas - ios

Question

I have this problem:
everytime I switch between the segments of the segmented control the datas are messed up, but only if I switch in runtime and only in the 0 segment, the 1 segment works flawlessly no matter how many time I switch. Here's a gif that explains what I mean:
How to deal with this problem? Here's some code
the ibaction func of the segmented control
#IBAction func timeSelectionSegControl(_ sender: UISegmentedControl) {
switch sender.selectedSegmentIndex {
case 0:
last7Filler()
case 1:
todayFiller()
case 2:
last30Filler()
default:
break
} }
todayFiller() (the one which works well):
func todayFiller() {
emptyArrays()
low = CoreDataController.shared.loadCigFromSeverityNumber(severity: "Bassa intensità")
mid = CoreDataController.shared.loadCigFromSeverityNumber(severity: "Media intensità")
high = CoreDataController.shared.loadCigFromSeverityNumber(severity: "Alta intensità")
for i in low {
if i.date == currentDate() { //put in arrays xxxA the elements which have the property .date equals to today
lowA.append(i)
}
}
for i in mid {
if i.date == currentDate() {
midA.append(i)
}
}
for i in high {
if i.date == currentDate() {
highA.append(i)
}
}
//low severity fill funcs FOR TIME
if !lowA.isEmpty || !midA.isEmpty || !highA.isEmpty {
fillBarChart()
var lowSeverityDataEntry = [ChartDataEntry]()
let crossReferenceLow = lowA.reduce(into: [String: [Cig]]()) {
$0[$1.time!.returnFirstNcharacters(n: 3), default: []].append($1)}
let sortedKeysLow = Array(crossReferenceLow.keys).sorted(by: <)
for key in sortedKeysLow {
let matchingTerms = values.filter({
$0.range(of: key, options: .caseInsensitive) != nil
})
if matchingTerms.isEmpty {
print("no elements found in \(key)")
} else {
let index = values.index(of: matchingTerms[0])
let indexString = matchingTerms[0]
let first3 = indexString.returnFirstNcharacters(n: 3)
let value = ChartDataEntry(x: Double(index!), y: Double((crossReferenceLow[first3]?.count)!))
lowSeverityDataEntry.append(value)
doubleArray.append(Double(index!))
doubleArrayMax.append(Double((crossReferenceLow[first3]?.count)!))
}
}
let lowSeverityLine = LineChartDataSet(values: lowSeverityDataEntry, label: "Bassa")
lowSeverityLine.colors = [NSUIColor.green]
lowSeverityLine.mode = .cubicBezier
lowSeverityLine.lineCapType = self.lineCap
lowSeverityLine.lineWidth = self.lineWidth
lowSeverityLine.circleRadius = self.circleRadius
lowSeverityLine.circleColors = [NSUIColor.green]
lowSeverityLine.circleHoleColor = NSUIColor.white
lowSeverityLine.circleHoleRadius = self.circleHoleRadius
lowSeverityLine.drawValuesEnabled = false
//mid severity fill funcs FOR TIME
var midSeverityDataEntry = [ChartDataEntry]()
let crossReferenceMid = midA.reduce(into: [String: [Cig]]()) {
$0[$1.time!.returnFirstNcharacters(n: 3), default: []].append($1)}
let sortedKeysMid = Array(crossReferenceMid.keys).sorted(by: <)
for key in sortedKeysMid {
let matchingTerms = values.filter({
$0.range(of: key, options: .caseInsensitive) != nil
})
if matchingTerms.isEmpty {
print("no elements found in \(key)")
} else {
let index = values.index(of: matchingTerms[0])
let indexString = matchingTerms[0]
let first3 = indexString.returnFirstNcharacters(n: 3)
let value = ChartDataEntry(x: Double(index!), y: Double((crossReferenceMid[first3]?.count)!))
midSeverityDataEntry.append(value)
doubleArray.append(Double(index!))
doubleArrayMax.append(Double((crossReferenceMid[first3]?.count)!))
}
}
let midSeverityLine = LineChartDataSet(values: midSeverityDataEntry, label: "Media")
midSeverityLine.colors = [NSUIColor.yellow]
midSeverityLine.mode = .cubicBezier
midSeverityLine.lineCapType = self.lineCap
midSeverityLine.lineWidth = self.lineWidth
midSeverityLine.circleRadius = self.circleRadius
midSeverityLine.circleColors = [NSUIColor.yellow]
midSeverityLine.circleHoleColor = NSUIColor.white
midSeverityLine.circleHoleRadius = self.circleHoleRadius
midSeverityLine.drawValuesEnabled = false
//high severity fill funcs FOR TIME
var highSeverityDataEntry = [ChartDataEntry]()
let crossReferenceHigh = highA.reduce(into: [String: [Cig]]()) {
$0[$1.time!.returnFirstNcharacters(n: 3), default: []].append($1)}
let sortedKeysHigh = Array(crossReferenceHigh.keys).sorted(by: <)
for key in sortedKeysHigh {
let matchingTerms = values.filter({
$0.range(of: key, options: .caseInsensitive) != nil
})
if matchingTerms.isEmpty {
print("no elements found in \(key)")
} else {
let index = values.index(of: matchingTerms[0])
let indexString = matchingTerms[0]
let first3 = indexString.returnFirstNcharacters(n: 3)
let value = ChartDataEntry(x: Double(index!), y: Double((crossReferenceHigh[first3]?.count)!))
highSeverityDataEntry.append(value)
doubleArray.append(Double(index!))
doubleArrayMax.append(Double((crossReferenceHigh[first3]?.count)!))
}
}
let highSeverityLine = LineChartDataSet(values: highSeverityDataEntry, label: "Alta")
highSeverityLine.colors = [NSUIColor.red]
highSeverityLine.mode = .cubicBezier
highSeverityLine.lineCapType = self.lineCap
highSeverityLine.lineWidth = self.lineWidth
highSeverityLine.circleRadius = self.circleRadius
highSeverityLine.circleColors = [NSUIColor.red]
highSeverityLine.circleHoleColor = NSUIColor.white
highSeverityLine.circleHoleRadius = self.circleHoleRadius
highSeverityLine.drawValuesEnabled = false
let data = LineChartData()
data.addDataSet(lowSeverityLine)
data.addDataSet(midSeverityLine)
data.addDataSet(highSeverityLine)
lineChartView.data = data
guard let min = doubleArray.min() else {return}
guard let max = doubleArrayMax.max() else {return}
lineChartView.xAxis.axisMinimum = min
lineChartView.leftAxis.axisMaximum = max
let myXaxis = lineChartView.xAxis
myXaxis.granularity = 1.0
myXaxis.axisMaximum = Double(values.count)
myXaxis.labelPosition = .bottom
myXaxis.gridLineWidth = 0.2
myXaxis.axisLineWidth = 1.0
myXaxis.axisLineColor = UIColor.black
myXaxis.valueFormatter = IndexAxisValueFormatter(values: values)
let yLeftAxis = lineChartView.leftAxis
yLeftAxis.granularity = 1.0
yLeftAxis.axisMinimum = 0.0
yLeftAxis.gridLineWidth = 0.2
yLeftAxis.axisLineWidth = 1.0
yLeftAxis.axisLineColor = UIColor.black
lineChartView.rightAxis.enabled = false
lineChartView.chartDescription?.text = ""
lineChartView.animate(xAxisDuration: 1.0, easingOption: .linear)
} else {
lineChartView.noDataText = "Nessuna sigaretta fumata oggi"
barChartView.noDataText = "Nessuna sigaretta fumata oggi"
} }
last7Filler() func (the one which give me problems):
func last7Filler() {
emptyArrays()
low = CoreDataController.shared.loadCigFromSeverityNumber(severity: "Bassa intensità")
mid = CoreDataController.shared.loadCigFromSeverityNumber(severity: "Media intensità")
high = CoreDataController.shared.loadCigFromSeverityNumber(severity: "Alta intensità")
for i in low {
let first3Date = i.date!.returnFirstNcharacters(n: 3)
for a in past7Days() {
let first3Day = "\(a)-"
if first3Date == first3Day {
lowA.append(i)
}
}
}
for i in mid {
let first3Date = i.date!.returnFirstNcharacters(n: 3)
for a in past7Days() {
let first3Day = "\(a)-"
if first3Date == first3Day {
midA.append(i)
}
}
}
for i in high {
let first3Date = i.date!.returnFirstNcharacters(n: 3)
for a in past7Days() {
let first3Day = "\(a)-"
if first3Date == first3Day {
highA.append(i)
}
}
}
if !lowA.isEmpty || !midA.isEmpty || !highA.isEmpty {
fillBarChart()
var lowSeverityDataEntry = [ChartDataEntry]()
let crossReferenceLow = lowA.reduce(into: [String:[Cig]]() ) {
$0[$1.date!.returnFirstNcharacters(n: 5), default: []].append($1)}
let sortedKeysLow = Array(crossReferenceLow.keys).sorted(by: <)
for key in sortedKeysLow {
let matchingTerms = values.filter({
$0.range(of: key, options: .caseInsensitive) != nil
})
if matchingTerms.isEmpty {
print("no elements found in \(key)")
} else {
let index = values.index(of: matchingTerms[0])
let value = ChartDataEntry(x: Double(index!), y: Double((crossReferenceLow[key]?.count)!))
lowSeverityDataEntry.append(value)
}
}
let lowSeverityLine = LineChartDataSet(values: lowSeverityDataEntry, label: "Bassa")
lowSeverityLine.colors = [NSUIColor.green]
lowSeverityLine.mode = .cubicBezier
lowSeverityLine.lineCapType = self.lineCap
lowSeverityLine.lineWidth = self.lineWidth
lowSeverityLine.circleRadius = self.circleRadius
lowSeverityLine.circleColors = [NSUIColor.green]
lowSeverityLine.circleHoleColor = NSUIColor.white
lowSeverityLine.circleHoleRadius = self.circleHoleRadius
lowSeverityLine.drawValuesEnabled = false
var midSeverityDataEntry = [ChartDataEntry]()
let crossReferenceMid = midA.reduce(into: [String: [Cig]]() ) {
$0[$1.date!.returnFirstNcharacters(n: 5), default: []].append($1)}
let sortedKeysMid = Array(crossReferenceMid.keys).sorted(by: <)
for key in sortedKeysMid {
let matchingTerms = values.filter({
$0.range(of: key, options: .caseInsensitive) != nil
})
if matchingTerms.isEmpty {
print("no elements found in \(key)")
} else {
let index = values.index(of: matchingTerms[0])
let value = ChartDataEntry(x: Double(index!), y: Double((crossReferenceMid[key]?.count)!))
midSeverityDataEntry.append(value)
}
}
let midSeverityLine = LineChartDataSet(values: midSeverityDataEntry, label: "Media")
midSeverityLine.colors = [NSUIColor.yellow]
midSeverityLine.mode = .cubicBezier
midSeverityLine.lineCapType = self.lineCap
midSeverityLine.lineWidth = self.lineWidth
midSeverityLine.circleRadius = self.circleRadius
midSeverityLine.circleColors = [NSUIColor.yellow]
midSeverityLine.circleHoleColor = NSUIColor.white
midSeverityLine.circleHoleRadius = self.circleHoleRadius
midSeverityLine.drawValuesEnabled = false
var highSeverityDataEntry = [ChartDataEntry]()
let crossReferenceHigh = highA.reduce(into: [String: [Cig]]()) {
$0[$1.date!.returnFirstNcharacters(n: 5), default: []].append($1)}
let sortedKeysHigh = Array(crossReferenceHigh.keys).sorted(by: <)
for key in sortedKeysHigh {
let matchingTerms = values.filter({
$0.range(of: key, options: .caseInsensitive) != nil
})
if matchingTerms.isEmpty {
print("no element found in \(key)")
} else {
let index = values.index(of: matchingTerms[0])
let value = ChartDataEntry(x: Double(index!), y: Double((crossReferenceHigh[key]?.count)!))
highSeverityDataEntry.append(value)
}
}
let highSeverityLine = LineChartDataSet(values: highSeverityDataEntry, label: "Alta")
highSeverityLine.colors = [NSUIColor.red]
highSeverityLine.mode = .cubicBezier
highSeverityLine.lineCapType = self.lineCap
highSeverityLine.lineWidth = self.lineWidth
highSeverityLine.circleRadius = self.circleRadius
highSeverityLine.circleColors = [NSUIColor.red]
highSeverityLine.circleHoleColor = NSUIColor.white
highSeverityLine.circleHoleRadius = self.circleHoleRadius
highSeverityLine.drawValuesEnabled = false
let data = LineChartData()
data.addDataSet(lowSeverityLine)
data.addDataSet(midSeverityLine)
data.addDataSet(highSeverityLine)
lineChartView.data = data
lineChartView.notifyDataSetChanged()
lineChartView.data!.notifyDataChanged()
//graphic configuration
let myXaxis = lineChartView.xAxis
myXaxis.granularity = 1.0
myXaxis.axisMinimum = 0.0
myXaxis.axisMaximum = Double(values.count)
myXaxis.labelPosition = .bottom
myXaxis.gridLineWidth = 0.2
myXaxis.axisLineWidth = 1.0
myXaxis.axisLineColor = UIColor.black
myXaxis.valueFormatter = IndexAxisValueFormatter(values: values)
let yLeftAxis = lineChartView.leftAxis
yLeftAxis.granularity = 1.0
yLeftAxis.axisMinimum = 0.0
yLeftAxis.gridLineWidth = 0.2
yLeftAxis.axisLineWidth = 1.0
yLeftAxis.axisLineColor = UIColor.black
lineChartView.rightAxis.enabled = false
lineChartView.chartDescription?.text = ""
lineChartView.animate(xAxisDuration: 1.0, easingOption: .linear)
} else {
lineChartView.noDataText = "Nessuna sigaretta fumata nei scorsi 7 giorni"
barChartView.noDataText = "Nessuna sigaretta fumata nei scorsi 7 giorni"
}
p.s. the func emptyArrays() just gives removeAll() to the arrays low, mid, high, lowA, midA and highA