Question

I am using this code for touch event but its not working

-(void)barPlot:(CPTBarPlot *)plot barWasSelectedAtRecordIndex:(NSUInteger)index

how can i add touch event in core plot or i want to show bar graph values on top of each bar.

Answer 1

As per this topic in google forum, for touch event the delegate method which you are using should work. Check if the mistake is something related to setting the delegate or so. Check the CPTestApp application for an example.

For the second question, as mentioned here, in order to show the bar graph values on top of bar you can add simple labels by setting the barLabelTextStyle. You can also look at the following bar plot datasource method:

-(CPTextLayer *)barLabelForBarPlot:(CPBarPlot *)barPlot recordIndex: 
(NSUInteger)index; 

Again check CPTestApp for an example. You can use the barLabelOffset property to
set the space between the ends of the bars and the labels as mentioned there.