[iOS UIKit in Swift 4] UIScrollView 사용하기 (Display UIScrollView)

UIScrollView 사용하기

Image 사이즈 만큼의 크기를 가지는 UIScrollView를 만들었습니다.

scrollView에 isZooming을 true로 하고 

maximumZoomScale 값과 minimumZoomScale 값을 지정한 만큼 줌이 가능합니다.

아래 이미지와 소스코드를 비교해보시면 좀 더 이해하기 편합니다.

궁금하신점은 댓글로 달아주세요.

해피코딩 :)

Preview

Source

	//
	// ScrollViewVC.swift
	// UIKit component handling
	//
	// Created by Taehyeon Han on 2018. 8. 6..
	// Copyright © 2018년 calmone. All rights reserved.
	//
	import UIKit
	class ScrollViewVC: BaseViewController {
	lazy var scrollView: UIScrollView = {
	let scrollView: UIScrollView = UIScrollView()
	// Generate ScrollView.
	scrollView.frame = self.view.frame
	// Disable ScrollView bounces
	scrollView.bounces = false
	// Set the image in UIImage.
	let image = UIImage(named: "vertical.jpeg")!
	// Create a UIImageView.
	let imageView = UIImageView()
	// Set myImage to the image of imageView.
	imageView.image = image
	// Set the value of frame size
	imageView.frame.size = image.size
	// Set the aspect ratio of the image.
	imageView.contentMode = UIViewContentMode.scaleAspectFill
	// Add imageView to ScrollView.
	scrollView.addSubview(imageView)
	// Set contentSize to ScrollView.
	scrollView.contentSize = imageView.frame.size
	return scrollView
	}()
	override func viewDidLoad() {
	super.viewDidLoad()
	// Do any additional setup after loading the view.
	// Add UIScrollView on view
	self.view.addSubview(self.scrollView)
	}
	override func didReceiveMemoryWarning() {
	super.didReceiveMemoryWarning()
	// Dispose of any resources that can be recreated.
	}
	}

view raw ScrollViewVC.swift hosted with ❤ by GitHub

Github

https://github.com/calmone/iOS-UIKit-component

Reference

• UIImageView
  https://developer.apple.com/reference/uikit/uiimageview
• UIImage
  https://developer.apple.com/reference/uikit/uiimage
  
• UIScrollView
  https://developer.apple.com/reference/uikit/uiscrollview