PickerView.txt

//
//  ViewController.swift
//  PickerView
//
//  Created by Kwoncheol on 26/08/2017.
//  Copyright © 2017 Kwoncheol. All rights reserved.
//

import UIKit

class ViewController: UIViewController,UIPickerViewDelegate {
    let MAX_ARRAY_NUM = 9
    let PICKER_VIEW_COLUMN = 1
    let PICKER_VIEW_HEIGHT:CGFloat=80
    var imageArray = [UIImage]()
    var imageFileName = ["mhl1.jpg", "mhl2.jpg", "mhl3.jpg","mhl4.jpg","mhl5.jpg","mhl6.jpg","mhl7.jpg","mhl8.jpg","mhl9.jpg"]
    
    @IBOutlet weak var imageView: UIImageView!
    @IBOutlet weak var pickerImage: UIPickerView!
    @IBOutlet weak var lblImageFileName: UILabel!
    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
        //lblImageFileName.text = imageFileName[0]
        
        for i in 0..<MAX_ARRAY_NUM {
            let image = UIImage(named: imageFileName[i])
            imageArray.append(image!)
        }
        lblImageFileName.text = imageFileName[0]
        imageView.image = imageArray[0]
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }
    
    //return the number of 'columns' to display.
    func numberOfComponets(in pickerView: UIPickerView!) -> Int {
        return PICKER_VIEW_COLUMN
    }
    
    func pickerView(_ pickerView: UIPickerView, rowHeightForComponent component:Int) -> CGFloat {
        return PICKER_VIEW_HEIGHT
    }

    func pickerView(_ pickerView: UIPickerView!, numberOfRowsInComponent component:Int) -> Int {
        return imageFileName.count
    }
    
   // func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int)->String?{
   //     return imageFileName[row]
   // }
    func pickerView(_ pickerView: UIPickerView, viewForRow row: Int, forComponent component: Int, reusing view: UIView?) -> UIView {
        let imageView = UIImageView(image:imageArray[row])
        imageView.frame = CGRect.init(x:0, y:0, width:100, height:150)
        
        return imageView
    }
    func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
        lblImageFileName.text = imageFileName[row]
        imageView.image = imageArray[row]
    }   
}