BMI Calculator complete with dynamic state management based on variou… #7
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,73 @@ | ||
| // | ||
| // ViewController.swift | ||
| // BMI Calculator | ||
| // | ||
| // Created by Angela Yu on 21/08/2019. | ||
| // Copyright © 2019 Angela Yu. All rights reserved. | ||
| // | ||
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| import UIKit | ||
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| class CalculateViewController: UIViewController { | ||
| @IBOutlet weak var heightSlider: UISlider! | ||
| @IBOutlet weak var weightSlider: UISlider! | ||
| @IBOutlet weak var heightLabel: UILabel! | ||
| @IBOutlet weak var weightLabel: UILabel! | ||
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| // var bmiValue = "0.0" | ||
| var calculatorBrain = CalculatorBrain() | ||
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| override func viewDidLoad() { | ||
| super.viewDidLoad() | ||
| // Do any additional setup after loading the view. | ||
| } | ||
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| @IBAction func heightSliderChanged(_ sender: UISlider) { | ||
| let currentValue = sender.value | ||
| let roundedValue = (currentValue*100).rounded()/100 | ||
| print(roundedValue) | ||
| heightLabel.text = "\(roundedValue)m" | ||
| } | ||
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| @IBAction func weightSliderChanged(_ sender: UISlider) { | ||
| let currentValue = Int(sender.value) | ||
| print(currentValue) | ||
| weightLabel.text = "\(currentValue)Kg" | ||
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| } | ||
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| @IBAction func calculatePressed(_ sender: UIButton) { | ||
| let height = heightSlider.value | ||
| let weight = weightSlider.value | ||
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| calculatorBrain.calculateBMI(height: height, weight: weight) | ||
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| // Manual way to create modal pop up on a custom class | ||
| // let secondVC = SecondViewController() | ||
| // secondVC.bmiValue = String(format: "%.1f", bmi) | ||
| // self.present(secondVC, animated: true, completion: nil) | ||
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| // for navigating btw screens that have a segue created on Main.storyboard | ||
| self.performSegue(withIdentifier: "goToResults", sender: self) | ||
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| } | ||
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| override func prepare(for segue: UIStoryboardSegue, sender: Any?) { | ||
| //print("sender", sender.bmi!) | ||
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| if segue.identifier == "goToResults" { | ||
| // narrow down the data type and specify the exact type the desination will be | ||
| let destinationVC = segue.destination as! ResultsViewController | ||
| destinationVC.bmiValue = calculatorBrain.getBMIValue() | ||
| destinationVC.advice = calculatorBrain.getAdvice() | ||
| destinationVC.color = calculatorBrain.getColor() | ||
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| } | ||
| } | ||
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| } | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,47 @@ | ||
| // | ||
| // ResultsViewController.swift | ||
| // BMI Calculator | ||
| // | ||
| // Created by Matthew Digel on 12/19/20. | ||
| // Copyright © 2020 Angela Yu. All rights reserved. | ||
| // | ||
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| import UIKit | ||
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| class ResultsViewController: UIViewController { | ||
| @IBOutlet weak var bmiLabel: UILabel! | ||
| @IBOutlet weak var adviceLabel: UILabel! | ||
| @IBOutlet weak var backgroundView: UIImageView! | ||
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| var bmiValue: String? | ||
| var advice: String? | ||
| var color: UIColor? | ||
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| override func viewDidLoad() { | ||
| super.viewDidLoad() | ||
| bmiLabel.text = bmiValue | ||
| adviceLabel.text = advice | ||
| view.backgroundColor = color | ||
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| // Could also do background Color this way: | ||
| // backgroundView.backgroundColor = color | ||
| } | ||
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| @IBAction func recalculatePressed(_ sender: UIButton) { | ||
| // can use self too | ||
| // self.dismiss(animated: true, completion: nil) | ||
| dismiss(animated: true, completion: nil) | ||
| } | ||
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| /* | ||
| // MARK: - Navigation | ||
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| // In a storyboard-based application, you will often want to do a little preparation before navigation | ||
| override func prepare(for segue: UIStoryboardSegue, sender: Any?) { | ||
| // Get the new view controller using segue.destination. | ||
| // Pass the selected object to the new view controller. | ||
| } | ||
| */ | ||
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| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,15 @@ | ||
| // | ||
| // BMI.swift | ||
| // BMI Calculator | ||
| // | ||
| // Created by Matthew Digel on 12/19/20. | ||
| // Copyright © 2020 Angela Yu. All rights reserved. | ||
| // | ||
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| import UIKit | ||
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| struct BMI { | ||
| let value: Float | ||
| let advice: String | ||
| let color: UIColor | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,36 @@ | ||
| import UIKit | ||
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| struct CalculatorBrain { | ||
| var bmi: BMI? | ||
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| mutating func calculateBMI(height: Float, weight: Float){ | ||
| let bmiValue = weight / pow(height, 2) | ||
| if bmiValue < 18.5 { | ||
| // print("Underweight") | ||
|
There was a problem hiding this comment. The commented print statement can be removed |
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| bmi = BMI(value: bmiValue, advice: "Eat More Pies", color: #colorLiteral(red: 0.2884203767, green: 0.749411387, blue: 1, alpha: 1)) | ||
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| } else if bmiValue < 24.9 { | ||
| print("Normal") | ||
| bmi = BMI(value: bmiValue, advice: "You are fit", color: #colorLiteral(red: 0.4666666687, green: 0.7647058964, blue: 0.2666666806, alpha: 1)) | ||
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| } else { | ||
| print("Overweight") | ||
| bmi = BMI(value: bmiValue, advice: "Eat Less Pies", color: #colorLiteral(red: 0.8078431487, green: 0.02745098062, blue: 0.3333333433, alpha: 1)) | ||
| } | ||
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| } | ||
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| func getBMIValue() -> String { | ||
| let BMIValue = bmi?.value | ||
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| return String(format: "%.1f", BMIValue ?? "0.0") | ||
| } | ||
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| func getAdvice () -> String { | ||
| return bmi?.advice ?? "No advice" | ||
| } | ||
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| func getColor () -> UIColor { | ||
| return bmi?.color ?? UIColor.white | ||
| } | ||
| } | ||
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The commented print statement can be removed
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?
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hello?
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whaaat?
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clueless
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hello
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hi