第十一天:SwiftLoveTweet

 

参考链接:https://github.com/soapyigu/Swift-30-Projects

 

import UIKit
import Social

enum Gender: Int {
    case Male = 0, Female
}

extension Selector {
    static let endEditing = #selector(UIView.endEditing(_:))
}

extension UIViewController {
    func showAlert(title: String, message: String, buttonTitle: String) {
        let alert = UIAlertController.init(title: title, message: message, preferredStyle: .alert)
        alert.addAction(UIAlertAction.init(title: buttonTitle, style: .default, handler: nil))
        present(alert, animated: true, completion: nil)
    }
}

 

import Foundation

struct Tweet {
    var gender: Gender
    var name: String
    var age: Int
    var work: String
    var salary: String
    var isStraight: Bool
    
    var interestedGender: String {
        switch gender {
        case .Female:
            return isStraight ? "Men" : "Women"
        case .Male:
            return isStraight ? "Women" : "Men"
        }
    }
    
    var info: String {
        return "Hi, I am \(name). As a \(age)-year-old \(work) earning \(salary)/year, I am interested in \(interestedGender). Feel free to contact me!"
    }
}

 

import UIKit

class ViewController: UIViewController {
    
    var tweet: Tweet?
    
    // MARK: Outlets
    @IBOutlet weak var salaryLabel: UILabel!
    @IBOutlet weak var straightSwitch: UISwitch!
    @IBOutlet weak var nameTextField: UITextField!
    @IBOutlet weak var workTextField: UITextField!
    @IBOutlet weak var birthdayPicker: UIDatePicker!
    @IBOutlet weak var genderSeg: UISegmentedControl!

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
        
        birthdayPicker.maximumDate = Date()
        
        // dismiss keyboard
        self.view.addGestureRecognizer(UITapGestureRecognizer.init(target: self.view, action: Selector.endEditing))
        
        nameTextField.delegate = self
        workTextField.delegate = self
    }
    
    @IBAction func salarySliderValueDidChange(_ sendr: UISlider) {
        salaryLabel.text = "$\((Int)(sendr.value))k"
    }
    
    @IBAction func tweetButtonDidTap(_ sender: UIButton) {
        func getLabelsInfo() -> (name: String?, work: String?, salary: String?) {
            guard let name = nameTextField.text,
                let work = workTextField.text,
                let salary = salaryLabel.text
                else {
                    return (nil, nil, nil)
            }
            
            if name.isEmpty || work.isEmpty || salary.isEmpty {
                return (nil, nil, nil)
            }
            
            return (name, work, salary)
        }
        
        func getAge() -> Int? {
            let ageComponents = Calendar.current.dateComponents([.year], from: birthdayPicker.date, to: Date())
            return ageComponents.year
        }
        
        // get tweet info
        let labelsInfo = getLabelsInfo()
        
        if let name = labelsInfo.name, let work = labelsInfo.work, let salary = labelsInfo.salary, let age = getAge() {
            tweet = Tweet(gender: Gender(rawValue: genderSeg.selectedSegmentIndex)!, name: name, age: age, work: work, salary: salary, isStraight: straightSwitch.isOn)
        } else {
            tweet = nil
        }
        
        switch tweet {
        case .some(let tweet):
            showAlert(title: "Love Tweet", message: tweet.info, buttonTitle: "OK")
        case .none:
            showAlert(title: "Info miss or invalid", message: "Please fill out correct personal info", buttonTitle: "OK")
        }
    }
    
    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }

}

extension ViewController: UITextFieldDelegate {
    func textFieldShouldReturn(_ textField: UITextField) -> Bool {
        textField.resignFirstResponder()
        return true
    }
}