Bar chart xAxis grid lines are in centre instead besides - ios

I spent more than half of my day on it and unable to figure out solution
drawing bar chart using Charts pod facing two problems
Wanna Corner radius bars as mentioned in required Image
wanna bars besides the grid line as in below image
Required
My output is something like this
Output

Two method
override XAxisRender to make offset x grid line. override BarChartRenderer to add round corner
use ChartLimitLine instead of x grid line. and fork Chart and change BarChartRenderer to implement round corner
this is my demo implemented all you want with method 2

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