Fatal error when providing multiple data sets in PieChartData

[aubm]

Hey,

Thank you for open sourcing such a work!
I'm quite new in Swift so I would really appreciate if someone could help me figuring out some strange behavior.

Basically, what I'm trying to do is to initialize a pie chart data with multiple data sets. Here is the code that I use:

pieChart.data = PieChartData(dataSets: [
    PieChartDataSet(values: [PieChartDataEntry(value: 30)], label: "Foo"),
    PieChartDataSet(values: [PieChartDataEntry(value: 70)], label: "Bar")
])

When I do that, I get this error: fatal error: unexpectedly found nil while unwrapping an Optional value.

It seems to happen here, on the second iteration, when i equals 1.

I reproduced it in an example project that can be found here.

Cheers!

[rjong]

Ik have the same problem in my project. Waiting on a fix :)

[rjong]

Is there more information about this bug? Is there a fix?

[aubm]

It doesn't seem to :/

…

Le 9 févr. 2017 à 17:42, Rick de Jong ***@***.***> a écrit : Is there more information about this bug? Is there a fix? — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub, or mute the thread.

[yazankhayyat]

Hey guys Im experiencing the same issue here, any fix recommendations?

[liuxuan30]

As far as I remember, pie chart only allow 1 data set.

    open override func getDataSetByIndex(_ index: Int) -> IChartDataSet?
    {
        if index != 0
        {
            return nil
        }
        return super.getDataSetByIndex(index)
    }