Utility 4 To get the remaining amount of battery

Swift3.0 // // ViewController.swift // Utility000_3.0 // // Created by KimikoWatanabe on 2016/08/22. // Copyright © 2016年 FaBo, Inc. All rights reserved. // import UIKit class ViewController: UIViewController { override func viewDidLoad() { super.viewDidLoad() //デバイスとバッテリー残量の宣言. let myDevice: UIDevice = UIDevice.current //バッテリー状態の監視. myDevice.isBatteryMonitoringEnabled = true //バッテリープロパティ表示用のラベル. let myBatteryLevel = myDevice.batteryLevel let myBatteryState = myDevice.batteryState //バッテリー状態の取得. //0.0~1.0で残量表示。残量不明の時は-1.0を返す. print("\(myBatteryLevel) %") switch (myBatteryState) { case .full: self.view.backgroundColor = UIColor.cyan case .unplugged: self.view.backgroundColor = UIColor.red case .charging: self.view.backgroundColor = UIColor.blue case .unknown: self.view.backgroundColor = UIColor.gray } // Labelを作成. let myLabel = UILabel(frame: CGRect(x:0,y:0,width:200,height:200)) myLabel.backgroundColor = UIColor.orange myLabel.layer.masksToBounds = true myLabel.layer.cornerRadius = 100.0 myLabel.text = "\(myBatteryLevel * 100) %" myLabel.textColor = UIColor.white myLabel.shadowColor = UIColor.gray myLabel.textAlignment = NSTextAlignment.center myLabel.layer.position = self.view.center self.view.addSubview(myLabel) } } Swift 2.3 // // ViewController.swift // Utility000_2.3 // // Created by KimikoWatanabe on 2016/08/22. // Copyright © 2016年 FaBo, Inc. All rights reserved. // import UIKit class ViewController: UIViewController { override func viewDidLoad() { super.viewDidLoad() //デバイスとバッテリー残量の宣言. let myDevice: UIDevice = UIDevice.currentDevice() //バッテリー状態の監視. myDevice.batteryMonitoringEnabled = true //バッテリープロパティ表示用のラベル. let myBatteryLevel = myDevice.batteryLevel let myBatteryState = myDevice.batteryState //バッテリー状態の取得. //0.0~1.0で残量表示。残量不明の時は-1.0を返す. print("\(myBatteryLevel) %") switch (myBatteryState) { case .Full: self.view.backgroundColor = UIColor.cyanColor() case .Unplugged: self.view.backgroundColor = UIColor.redColor() case .Charging: self.view.backgroundColor = UIColor.blueColor() case .Unknown: self.view.backgroundColor = UIColor.grayColor() } // Labelを作成. let myLabel = UILabel(frame: CGRectMake(0,0,200,200)) myLabel.backgroundColor = UIColor.orangeColor() myLabel.layer.masksToBounds = true myLabel.layer.cornerRadius = 100.0 myLabel.text = "\(myBatteryLevel * 100) %" myLabel.textColor = UIColor.whiteColor() myLabel.shadowColor = UIColor.grayColor() myLabel.textAlignment = NSTextAlignment.Center myLabel.layer.position = self.view.center self.view.addSubview(myLabel) } } 2.3と3.0の差分 UIColorの参照方法が変更(UIColor.grayColor()->UIColor.gray) CGRect,CGPointの初期化方法の変更(CGRectMake,CGPointMakeの廃止) UIDeviceの各メソッド、プロパティ名が変更(currentDevice()->current)