How to show/hide Stacked Bar Chart yValue?

[kuldeep13990]

Currently it show all values like in 1st Image but I want to show only selected bar value like 2nd image, once i deselect it value is gone.

I tried but not able to do this.
Please help me to achieve this.

[liuxuan30]

what you have tried..? You can disable drawValues and just show value when highlighted.
either override drawHighlighted or drawValues() in bar chart renderer.

[kuldeep13990]

thanks for reply.

Initially, I hide bar values using this
set1.drawValuesEnabled = NO;

when user click on any bar, I unhide draw values like this.

- (void)chartValueSelected:(ChartViewBase * __nonnull)chartView entry:(ChartDataEntry * __nonnull)entry highlight:(ChartHighlight * __nonnull)highlight {
    BarChartDataSet *data = (BarChartDataSet *)[chartView.data.dataSets objectAtIndex:highlight.dataSetIndex];
    data.drawValuesEnabled = true;
    NSLog(@"chartValueSelected, stack-index %ld", (long)highlight.stackIndex);
    
}

this code show all bar values, I want to show only selected bar value.

I hide all value like below.

- (void)chartValueNothingSelected:(ChartViewBase * __nonnull)chartView {
    BarChartDataSet *set1 = nil;
    if (_chartView.data.dataSetCount > 0) {
        for (int i =0; i<_chartView.data.dataSetCount; i++) {
            set1 = (BarChartDataSet *)_chartView.data.dataSets[i];
            set1.drawValuesEnabled = NO;
        }
    }
    NSLog(@"chartValueNothingSelected");
}