質問編集履歴
1
追記
test
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test
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@@ -26,4 +26,74 @@
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import Charts
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@IBOutlet weak var pieChartsView: PieChartView!
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var buttonStartFlg = true
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@IBOutlet weak var startButton: UIButton!
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...
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// MARK: - Action
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@IBAction func tapStartButton(_ sender: UIButton) {
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let animation = CABasicAnimation(keyPath: "transform.rotation")
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animation.isRemovedOnCompletion = false
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animation.fillMode = CAMediaTimingFillMode.forwards
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if buttonStartFlg {
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startButton.setImage(UIImage(named: "stop"), for: .normal)
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pieChartsView.layer.speed = 2.0
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animation.toValue = .pi / 2.0
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animation.duration = 0.1
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animation.repeatCount = MAXFLOAT
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animation.isCumulative = true
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pieChartsView.layer.add(animation, forKey: "ImageViewRotation")
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buttonStartFlg = false
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} else {
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startButton.setImage(UIImage(named: "start"), for: .normal)
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let pausedTime = pieChartsView.layer.convertTime(CACurrentMediaTime(), from: nil)
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pieChartsView.layer.speed = 0.0
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pieChartsView.layer.timeOffset = pausedTime
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buttonStartFlg = true
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}
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}
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```
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