Thank you for contacting us.
I have tested out TKChartTrackball
in both our SDK examples and a brand new project on a physical device it seem all works correctly.
In order to setup trackball correctly you should do these steps:
1. Allow trackball
_chart.allowTrackball = YES;
2. Set the delegate to TKChart
3. Override delegate's -chart:trackballDidTrackSelection
- (void)chart:(TKChart *)chart trackballDidTrackSelection:(NSArray *)selection
id value = ((TKChartSelectionInfo*)selection).dataPoint.dataXValue;
NSString *str = [NSString stringWithFormat:@
"Pos = %@"
chart.trackball.tooltip.text = str;
By default TKChartTrackball
is designed to show after 0.5 seconds hold gesture. You can control this by setting the minimumPressDuration
I hope this helps. If the issue still occur, please send us some code or a small test project where we can see the issue represented and investigate this further.
Looking forward to your reply.
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