Search code examples
ioscomponentspie-chartdonut-chart

What can I use to implement a doughnut chart in iOS?

I'm looking for a free iOS component that allows me to draw a doughnut chart with text in the center. So far I've only used Code Plot, but that is a full pie chart.

I'm attaching an example of the requirement.

doughnut design

Any help will be much appreciated.

Solution

  • I suggest searching on cocoacontrols.com. They have lots of open source controls for iOS and Mac. I didn't se any specifically called "doughnut chart" but some of the pie charts controls might offer that option.

    In fact, it seems that this one does include what you're calling a doughnut chart. It doesn't look like it has built-in support for a label in the middle, but it does create a ring-shaped chart like you want.

    You could also always create a pie chart and then put a view on top of it that is transparent except for a white circle in the middle, and then put a label on top of that.

    Getting a little more complex you could modify the CorePlot control and add a filled CAShapeLayer to it.