First and Last Bars are not displaying full bars in CombinedChartView

[muthusabarinathan]

What did you do?

I would like to create a chart for stocks price and volume. So I chooses combinedChartView.

What did you expect to happen?

I would like to show price as LineChart and Volume as BarChart. And I created by using CombinedChartView.

What happened instead?

Here First and Last Bars are not displaying full bars.

1st Issue:

So I changed xAxis.axisMinimum value as -0.5. Now bars are looking good but line chart is moved.
2nd Issue:

Expectation:

I want to change BarChart xAxis minimum value alone without affecting LineChart xAxis.

Charts Environment

Charts version/Branch/Commit Number: 3.1.1
Xcode version: 9.2
Swift version: 3.2
Platform(s) running Charts: iOS
macOS version running Xcode: 10.13.1

Please help me to achieve this.

[liuxuan30]

check out ChartsDemo and #3186 for workaround.