Grouped Bar chart with JBChartView library - ios

Question

I've needed to draw a grouped bar charts in an iOS Projects I'm doing. So the iOS Third party library I used is JBChartView from Jawbone.
Up to the knowledge I gained with my research regarding this I found no any already supported ways within the library.
However I tried doing something like as follows:
- (NSUInteger)numberOfBarsInBarChartView:(JBBarChartView *)barChartView
{
return [self.chartLegend count]; // number of bars in chart "BB", "HB", "FB", "RO"
}
- (CGFloat)barChartView:(JBBarChartView *)barChartView heightForBarViewAtIndex:(NSUInteger)index
{
CGFloat height = (isnan((([[chartData objectAtIndex:index] doubleValue]/total)*100))) ? 0.0 : (([[chartData objectAtIndex:index] doubleValue]/total)*100);
NSLog(#"height : %f", height);
return height;
}
- (UIView *)barChartView:(JBBarChartView *)barChartView barViewAtIndex:(NSUInteger)index {
CGFloat height = (isnan((([[chartData objectAtIndex:index] doubleValue]/total)*100)))
? 0.0
: (([[chartData objectAtIndex:index] doubleValue]/total)*100);
UIView *view = [[UIView alloc]initWithFrame:CGRectMake(0, 0, 50, height)];
[view setBackgroundColor:[UIColor grayColor]];
UIView *firstHalf = [[UIView alloc] initWithFrame:CGRectMake(0, height, 25, height)];
[firstHalf setBackgroundColor:[UIColor redColor]];
UIView *secondHalf = [[UIView alloc] initWithFrame:CGRectMake(25, height, 25, height/2)];
if (index == 0) {
[secondHalf setBackgroundColor:UIColorFromRGB(0xF15854)];
} else if (index == 1) {
[secondHalf setBackgroundColor:UIColorFromRGB(0x5DA5DA)];
} else if (index == 2) {
[secondHalf setBackgroundColor:UIColorFromRGB(0xFAA43A)];
} else if (index == 3) {
[secondHalf setBackgroundColor:UIColorFromRGB(0x60BD68)];
}
[view addSubview:firstHalf];
[view addSubview:secondHalf];
return view;
}
Note: Please, ignore the data values which I've put to determine the heights of the Red color and other varying color bars. And UIColorFromRGB is a custom methods I use in my development.
But it gives the graph as follows:
But what I really want to draw using JBChartView library is as follows:
Any help is accepted with loads of gratitude and respect, but except don't suggest to use any other library to get this done. I like the simplicity of JBChartView library. :-)
Thanks in advance!

Answer 1

From what I've found out, this is not possible using standard way, but can be worked around. See https://github.com/Jawbone/JBChartView/issues/139