缩放图表时，TimeLineChart在xAxis中显示多个日期

Question

我只在Charts Library的TimeLineChart上的xAxis上设置日期，但是日期设置为缩放时相差一小时，因为会显示多个相同的日期。 这是因为差异是基于时间的，但是我需要以天为基础。

我的代码是：-

我正在使用以下代码。

func setupCharts(){
    chartView.delegate = self
    chartView.chartDescription?.enabled = false
    chartView.dragEnabled = true
    chartView.setScaleEnabled(true)
    chartView.pinchZoomEnabled = true
    chartView.backgroundColor = .white
    chartView.legend.enabled = false

    let xAxis = chartView.xAxis
    xAxis.labelPosition = .bottom
    xAxis.labelFont = .systemFont(ofSize: 10, weight: .light)
    xAxis.labelTextColor = .black
    xAxis.drawGridLinesEnabled = true
    xAxis.centerAxisLabelsEnabled = false
    xAxis.granularityEnabled = true
    xAxis.valueFormatter = DateValueFormatter()


    let leftAxis = chartView.leftAxis
    leftAxis.labelPosition = .outsideChart
    leftAxis.labelFont = .systemFont(ofSize: 12, weight: .light)
    leftAxis.drawGridLinesEnabled = true
    leftAxis.granularityEnabled = true
    leftAxis.axisMinimum = 0
    leftAxis.axisMaximum = 1000
    leftAxis.labelTextColor = .black

    chartView.rightAxis.enabled = false
    chartView.legend.form = .line
    self.setDataCount(self.weights.count)
    chartView.animate(xAxisDuration: 1.5)
}

func setDataCount(_ count: Int) {

    let values = (0..<count).map { (x) -> ChartDataEntry in
        let weightLogs = weights[x] as WeightLogsModel
        let y = weightLogs.weight!
        let date = weightLogs.dated!
        let dateFormatter = DateFormatter()
        dateFormatter.dateFormat = "yyyy-MM-dd"
        let dateValue = dateFormatter.date(from: date)
        let milisec = Int(dateValue!.timeIntervalSince1970)
        print(dateFormatter.string(from: Date(timeIntervalSince1970: TimeInterval(milisec))))
        return ChartDataEntry(x: Double(milisec), y: Double(y))
    }

    let set1 = LineChartDataSet(entries: values, label: "DataSet 1")
    set1.setColor(UIColor(red: 91/255, green: 209/255, blue: 116/255, alpha: 1))
    set1.lineWidth = 1.5
    set1.drawCirclesEnabled = true
    set1.drawValuesEnabled = true
    set1.fillColor = UIColor(red: 91/255, green: 209/255, blue: 116/255, alpha: 1)
    set1.setCircleColor(UIColor(red: 91/255, green: 209/255, blue: 116/255, alpha: 1))
    set1.circleRadius = 2.5
    set1.fill = Fill(color: #colorLiteral(red: 0.3568627451, green: 0.8196078431, blue: 0.4549019608, alpha: 0.3466109155))
    set1.drawFilledEnabled = true
    set1.highlightColor = #colorLiteral(red: 0.262745098, green: 0.7882352941, blue: 0.3647058824, alpha: 1)
    set1.mode = (set1.mode == .cubicBezier) ? .linear : .cubicBezier
    let data = LineChartData(dataSet: set1)

    data.setValueTextColor(.black)
    data.setValueFont(.systemFont(ofSize: 9, weight: .light))

    chartView.data = data
}