回答編集履歴
1
追記
test
CHANGED
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@@ -43,3 +43,113 @@
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43
43
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@objc func switchChanged(sender: UISwitch) {
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```
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---
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とりあえず私の手元で動いてるのを貼ってみますので、お試しください。
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(なお、import はまとめて最初に書くのが一般的なので、そうしてみました。)
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```swift
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60
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import UIKit
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import PlaygroundSupport
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64
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65
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66
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class UISwitchSample: UIView {
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var label: UILabel!
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override init(frame: CGRect) {
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super.init(frame: frame)
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// スイッチとラベルをのせるビュー
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let view = UIView(frame: CGRect(x: 0, y: 0, width: 200, height: 150))
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self.addSubview(view)
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view.center = self.center
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view.backgroundColor = UIColor.white
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// ラベル
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label = UILabel(frame: CGRect(x: 0, y: 0, width: 100, height: 50))
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label.center = CGPoint(x: view.frame.width/2, y: view.frame.height * 0.75)
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label.textColor = UIColor.blue
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label.textAlignment = NSTextAlignment.center
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view.addSubview(label)
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let sw = UISwitch(frame: CGRect(x: 0, y: 0, width: 60, height: 40))
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view.addSubview(sw)
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sw.center = CGPoint(x: view.frame.width/2, y: view.frame.height/2)
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113
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// スイッチをONにする
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sw.setOn(true, animated: true)
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label.text = "ON"
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// 値が変わった時の処理を指定
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sw.addTarget(self, action: #selector(switchChanged), for: UIControl.Event.valueChanged)
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}
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@objc func switchChanged(sender: UISwitch) {
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// スイッチのon/off
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if sender.isOn { label.text = "ON"}
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else { label.text = "OFF" }
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}
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required init(coder aDecoder: NSCoder) {
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fatalError("init(coder:) has not been implemented")
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}
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}
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PlaygroundPage.current.liveView = UISwitchSample(frame: CGRect(x: 0, y: 0, width: 200, height: 150))
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```
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