Dashed border on highlighted bar - BarChart

[gustavo-yy]

Hi, I'm trying to add a dashed border when I click on a barchart, at the moment I was abble to add a border but not the way a want.

I've tried this inside BarChartRenderer->drawHighlighted:
context.setStrokeColor(UIColor.white.cgColor)
context.stroke(barRect)
context.setLineDash(phase: 0.0, lengths: [5.0])

This is what i got:

But I want it lo look like this:

[liuxuan30]

context.stroke(barRect)
context.setLineDash(phase: 0.0, lengths: [5.0])

whey you stroke then set line dash? it should be the reversed order