011-UIPickerView.swift

//
//  ViewController.swift
//  011
//
//  Created by chuck on 7/3/16.
//  Copyright © 2016 chuck. All rights reserved.
//

import UIKit

class ViewController: UIViewController, UIPickerViewDelegate, UIPickerViewDataSource {
    
    private var myUIPicker: UIPickerView!
    
    // 表示する値一覧
    private let myValues: NSArray = ["one", "two", "three", "four", "five"]
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        myUIPicker = UIPickerView()
        
        // サイズ指定
        myUIPicker.frame = CGRectMake(0,0,self.view.bounds.width, 180.0)
        
        myUIPicker.delegate = self
        myUIPicker.dataSource = self
        
        self.view.addSubview(myUIPicker)
    
    }
    
    
    // pickerに表示する列数を返すデータソースメソッド
    func numberOfComponentsInPickerView(pickerView: UIPickerView) -> Int {
        return 1
    }
    
    
    // pickerに表示する行数を返すデータソースメソッド
    func pickerView(pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
        return myValues.count
    }
    
    // pickerに表示する値を返すデリゲートメソッド
    func pickerView(pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
        return myValues[row] as? String
    }
    
    // pickerが選択された際に呼ばれるデリゲートメソッド
    func pickerView(pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
        print("row: \(row)")
        print("value: \(myValues[row])")
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }
}