Horizontal bar chart crashing after tap when more than one data set

[dvd110]

I have tested this on the demo project. To reproduce modify HorizontalBarChartViewController.m with two data sets:

-(void)setDataCount:(int)count range:(double)range
{
NSMutableArray *xVals = [[NSMutableArray alloc] init];

for (int i = 0; i < count; i++)
{
    [xVals addObject:months[i % 12]];
}

NSMutableArray *yVals1 = [[NSMutableArray alloc] init];

for (int i = 0; i < count; i++)
{
    double mult = (range + 1);
    double val = (double) (arc4random_uniform(mult));
    [yVals1 addObject:[[BarChartDataEntry alloc] initWithValue:val xIndex:i]];
}

NSMutableArray *yVals2 = [[NSMutableArray alloc] init];

for (int i = 0; i < count; i++)
{
    double mult = (range + 1);
    double val = (double) (arc4random_uniform(mult));
    [yVals2 addObject:[[BarChartDataEntry alloc] initWithValue:val xIndex:i]];
}

BarChartDataSet *set1 = nil;
BarChartDataSet *set2 = nil;

if (_chartView.data.dataSetCount > 0)
{
    set1 = (BarChartDataSet *)_chartView.data.dataSets[0];
    set1.yVals = yVals1;
    _chartView.data.xValsObjc = xVals;
    [_chartView notifyDataSetChanged];
}
else
{
    set1 = [[BarChartDataSet alloc] initWithYVals:yVals1 label:@"DataSet"];
    set1.barSpace = 0.35;

    set2 = [[BarChartDataSet alloc] initWithYVals:yVals2 label:@"DataSet2"];
    set2.barSpace = 0.35;

    NSMutableArray *dataSets = [[NSMutableArray alloc] init];
    [dataSets addObject:set1];
    [dataSets addObject:set2];

    BarChartData *data = [[BarChartData alloc] initWithXVals:xVals dataSets:dataSets];
    [data setValueFont:[UIFont fontWithName:@"HelveticaNeue-Light" size:10.f]];

    _chartView.data = data;
}

}

Suggestion:
HorizontalBarChartHighlighter.swift, line 79. I think it should be 'super.getXIndex(x)' instead of 'getXIndex(x)'.

[liuxuan30]

Two things:

1. what's the crash trace?
2. towards your suggestion, is this related to crash or not? BUGFIX: fix infinite recursive call of getXIndex(_:) #1213 is pending for your suggestion

[dvd110]

Yes it's related to crash. #1213 is the same issue. Thanks.