Is my webView taking too much memory? - swift

Question

I have simple example where one webView is there which loads one link when the app loads successfully the Debug navigator looks like:
App takes 73.5 MB of Memory after that when I scroll down into simulator continuously memory increase too much like :
can anybody explain me why it is taking too much memory?
Or tell me if it causes any problem?
here is my code for this:
import UIKit
class ViewController: UIViewController {
#IBOutlet weak var webView: UIWebView!
override func viewDidLoad() {
super.viewDidLoad()
let url = "https://developer.apple.com/library/mac/documentation/Swift/Conceptual/Swift_Programming_Language/TheBasics.html#//apple_ref/doc/uid/TP40014097-CH5-XID_456"
let requestURL = NSURL(string:url)
let request = NSURLRequest(URL: requestURL!)
webView.loadRequest(request)
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
}

Answer 1

you can use WKWebView instead of UIWebView which will not take more memory, here is an example how to use it in swift 3:
import UIKit
import WebKit
class ViewController: UIViewController
{
var webView: WKWebView!
override func viewDidload() {
super.viewDidload()
let url = "https://developer.apple.com/library/mac/documentation/Swift/Conceptual/Swift_Programming_Language/TheBasics.html#//apple_ref/doc/uid/TP40014097-CH5-XID_456"
let requestURL = URL(string:url)
let request = URLRequest(url: requestURL!)
webView = WKWebView(frame: CGRect(x: 0, y: 0, width: self.view.frame.size.width, height: self.view.frame.size.height))
self.view.addSubview(webView)
webView.load(request)
}
}