BarChart draw sum of values above bar

[Ewg777]

Is it possible to build a bar chart like this? Sum of values are placed above the bar

Thanks

[mackyfamous]

I would like to know if you already fixed this issue, would you mind sharing it? Thanks.

[Ewg777]

@mackyfamous here it is!

        var yVals = [BarChartDataEntry]()
        for item in chartDataItems {
            let sum = item.yValues.reduce(0, +)

            let data = String(format: "%.0f", sum) as AnyObject
            let entry = BarChartDataEntry(x: item.x, yValues: item.yValues, data: data)
            yVals.append(entry)
        }

        let set = BarChartDataSet(values: yVals, label: nil)
        set.valueFormatter = IndexValueFormatter()

class IndexValueFormatter: IValueFormatter {

    func stringForValue(_ value: Double,
                        entry: ChartDataEntry,
                        dataSetIndex: Int,
                        viewPortHandler: ViewPortHandler?) -> String {
        let barEntry = entry as! BarChartDataEntry
        let nonEmpty = barEntry.yValues?.filter({ $0 > 0 })// removes zero-item
        guard nonEmpty?.last == value else { return "" }
        return entry.data as! String
    }
}