How to make Radar five top angle tap enabled?

[jidanyu]

in Charts 2.3.0.I use chartView.getMarkerPosition get the Radar five top angle (x,y)position(I,pass five chartView.yAxis.axisMaximum as param) ,then add five UIButton ,so ,I can tap them.
in Charts 3.0 ,Pie/radar charts do not have a concept of X index anymore. What can I do ? How can I make "Party A""Party B"...tap enabled?

[liuxuan30]

you could look at the tap gesture handler to add your hook I guess. Then have some logic to get the closest angle you want.