Target Line for Bar Chart

[ghost]

Hi guys, may I know how can I put the "target line" by using BarChartView element?

Attached with the Dropbox link below for the finishing that I trying to achieve.
https://www.dropbox.com/s/rwc6qfsjk2exezg/photo922167266029709323.jpg?dl=0

[liuxuan30]

it's called ChartLimitLine.

BTW, you can just use github image service for a single image.

[ghost]

Hi @liuxuan30, thank you for the swift respond.

However, I manage to show the ChartLimitLine already with the codes below.
ChartLimitLine *llXAxis = [[ChartLimitLine alloc] initWithLimit:220.0 label:@"GOAL"];
llXAxis.lineWidth = 4.0;
llXAxis.lineColor = [UIColor redColor];

Not sure if you mind to explain further on how to show the image on the left?

Do I need to subclass ChartLimitLine in order to further explore on that piece?

[liuxuan30]

Yes you need. The additional flag image should be customized renderering.
But be careful how you draw the limit line. It can draw above the data or beneath, and in different cases, the chart limit will be clipped or not. So I would suggest you take a look the drawRect function to figure out if overriding chart limit line renderer can do you a favor.
If not, then you have to write addional func to draw the image.

[ghost]

@liuxuan30 noted with thanks and will try it out.

Also, not sure if you have any sample code on this? I believe out there should have lots of people looking for the same thing.

[liuxuan30]

no, currently you are the first one I guess. You can take a look at how the chart limit line's label is drawn. Should be similar.

[ghost]

Sure thing @liuxuan30, truly appreciate with all the swift responds.