(v3.0 LineChart) xAxis with String/double label issue

[Huang-Libo]

My xAxis shows date string before, with v2.x; today I update Charts to v3.0, I find that I can only show double value instead, then I set x's values to 1.0, 2.0, 3.0...but the values showed on xAxis are .8, 1.6, 2.4, 3.2......

[jayvenn]

would like to know how to set string in the x axis as well

[danielgindi]

You just need to use a formatter.
A double can represent any value. If you want to represent a date, you can get the NSTimeInterval of a date. NSTimeInterval is actually a double.

Please look at the time chart demo!