我从 Telerik 开始,并尝试做提供的演示项目。
当我试图声明一个 TKChartDataPoint 时,它给出了一个错误:
代码片段:
class ViewController: UIViewController {
let x = 10
let y = 10
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
let chart = TKChart(frame: self.view.bounds.insetBy(dx: 15, dy: 15))
chart.autoresizingMask = [UIViewAutoresizing.flexibleWidth, UIViewAutoresizing.flexibleHeight]
self.view.addSubview(chart)
var randomNumericData = [TKChartDataPoint]()
for i in 0..<10 {
//Error Here
randomNumericData += TKChartDataPoint(x: i, y: Double(arc4random() % 100))
}
chart.addSeries(TKChartLineSeries(items: randomNumericData))
chart.title.isHidden = false
chart.title.text = "This is a chart demo"
chart.legend.isHidden = false
chart.allowAnimations = true
}
最佳答案
您应该只使用append
将您的对象添加到数组中:
randomNumericData.append(TKChartDataPoint(x: i, y: Double(arc4random() % 100)))
如果你真的想要,你可以使用 +=
,但是 randomNumericData
是一个数组,所以要用 +
或 添加到它+=
,添加的部分也应该是一个数组:
randomNumericData += [TKChartDataPoint(x: i, y: Double(arc4random() % 100))]
在我看来,第一种解决方案是首选。
关于ios - TKChartDataPoint 不符合预期的类型序列,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/40219214/