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I am trying to add a legend to my chart similar to how is done in the LegendChartView.swift code in the sample app. However the legend does not show and I get several NSLayoutConstraints conflicts such as this one:
[LayoutConstraints] Unable to simultaneously satisfy constraints. Probably at least one of the constraints in the following list is one you don't want. Try this: (1) look at each constraint and try to figure out which you don't expect; (2) find the code that added the unwanted constraint or constraints and fix it. ( "<NSLayoutConstraint:0x283528af0 UIButton:0x13c52d840.height == 25 (active)>", "<NSLayoutConstraint:0x2835285f0 UIButton:0x13c52d840.bottom == UIView:0x13c545060.bottom - 4 (active)>", "<NSLayoutConstraint:0x2835285a0 V:|-(4)-[UIButton:0x13c52d840] (active, names: '|':UIView:0x13c545060 )>", "<NSLayoutConstraint:0x283528b40 'UIIBSystemGenerated' SCIDefaultLegendItem:0x13c543f90.top == UIView:0x13c545060.top (active)>", "<NSLayoutConstraint:0x283528b90 'UIIBSystemGenerated' V:[UIView:0x13c545060]-(0)-| (active, names: '|':SCIDefaultLegendItem:0x13c543f90 )>", "<NSLayoutConstraint:0x283529c20 'UIView-Encapsulated-Layout-Height' SCIDefaultLegendItem:0x13c543f90.height == 0 (active)>" ) Will attempt to recover by breaking constraint <NSLayoutConstraint:0x283528af0 UIButton:0x13c52d840.height == 25 (active)>
The internal SCIDefaultLegendItems look to keep setting their width and height to 0 which causes conflicts with the underlying UIButton and UILabel components.
Any thoughts on how to get around this? My chart has four series. I have seen the article on drawing the legend outside the chart surface area however I do not want to do that.