如何设置pieChart的centerText的大小

Question

我使用库pod图表。我想设置这个大小，但我不知道这个设置大小的语法。

chartView.centerText = "0"

Answer 1

chartView.centerText = "0"
let centerText = NSMutableAttributedString(string: "0")
            centerText.setAttributes([.font : UIFont(name: "HelveticaNeue-Light", size: 50)!,
                                      .paragraphStyle : paragraphStyle], range: NSRange(location: 0, length: centerText.length))
chartView.centerAttributedText = centerText;