迅速セット画像中心の円グラフ

Question

今、私はチャートの中心の代わりに、円グラフに画像を追加したいCharts

から円グラフを使用しています。

image

私は何をすべき？

コード

func updatePieChart(){ 
    let track = ["", ""] 
    let money = [65, 45] 
    var entries = [PieChartDataEntry]() 
    for (index, value) in money.enumerated() { 
     let entry = PieChartDataEntry() 
     entry.y = Double(value) 
     entry.label = track[index] 
     entries.append(entry) 
    } 
    let set = PieChartDataSet(values: entries, label: "Pie Chart") 
    var colors: [UIColor] = [] 

    for _ in 0..<money.count { 
     let red = Double(arc4random_uniform(256)) 
     let green = Double(arc4random_uniform(256)) 
     let blue = Double(arc4random_uniform(256)) 
     let color = UIColor(red: CGFloat(red/255), green: CGFloat(green/255), blue: CGFloat(blue/255), alpha: 1) 
     colors.append(color) 
    } 
    set.colors = colors 
    let data = PieChartData(dataSet: set) 
    pieview.data = data 
    pieview.noDataText = "No data available" 
    // user interaction 
    pieview.isUserInteractionEnabled = true 

    let d = Description() 
    d.text = "iOSCharts.io" 
    pieview.chartDescription = d 
    pieview.centerText = "Pie Chart" 
    pieview.holeRadiusPercent = 0.9 
    pieview.transparentCircleColor = UIColor.clear 
    pieview.holeRadiusPercent = 0.65 
    pieview.transparentCircleRadiusPercent = 0 
    pieview.legend.enabled = false 
    pieview.chartDescription?.enabled = false 

Answer 1

これを試してください：

let attachment = NSTextAttachment() 
attachment.image = UIImage(named: "your image") 
let attachmentString = NSAttributedString(attachment: attachment) 
let labelImg = NSMutableAttributedString(string: "") 
labelImg.append(attachmentString) 

pieChartView.centerAttributedText = labelImg 

Answer 2

これを試してみてください代わりに

@IBOutlet weak var chartView: PieChartView! 
@IBOutlet weak var image: UIImageView! 
... 

image.center = chartView.center