NVActivityIndicatorView only for particular view

Question

I am using this library https://github.com/ninjaprox/NVActivityIndicatorView for showing the loading indicator. By default it blocks the entire view controller but how can I show the activity indicator only for the particular view. For example if a view controller contains a webview and some other view, the activity indicator should be only for the webview and I should be able interact with the other view.

class FaqViewController: UIViewController, UIWebViewDelegate
{

    @IBOutlet var faqWebView: UIWebView!
    static let activityData = ActivityData()
    var activityIndicator : NVActivityIndicatorView!

    override func viewDidLoad()
    {
        super.viewDidLoad()
        faqWebView.delegate = self
        faqWebView.loadRequest(URLRequest(url: URL(string: "https://www.google.com")!))
    }

    func webViewDidStartLoad(_ webView: UIWebView)
    {
        NVActivityIndicatorView.DEFAULT_BLOCKER_SIZE = CGSize(width: 45, height: 45)
        NVActivityIndicatorPresenter.sharedInstance.startAnimating(FaqViewController.activityData)
    }

    func webViewDidFinishLoad(_ webView: UIWebView)
    {
        NVActivityIndicatorPresenter.sharedInstance.stopAnimating()
    }
}

As of now it fills the entire view. But I want to interact with the Navigation controller at any point of time to go back even when page is loading. — Prabu Raj, Sep 15 '17 at 07:42
change the frame of your `NVActivityIndicatorView` using `let x = self.view.center.x let y = self.view.center.y let frame = CGRect(x: (x - 50), y: (y - 50), width: 100, height: 100) NVActivityIndicatorView(frame: frame)` — Anbu.Karthik, Sep 15 '17 at 07:46

score 4 · Accepted Answer · answered Sep 15 '17 at 07:53

4

for e.g show the activityIndicator

func webViewDidStartLoad(_ webView: UIWebView)
{
    //NVActivityIndicatorView.DEFAULT_BLOCKER_SIZE = CGSize(width: 45, height: 45)
    //NVActivityIndicatorPresenter.sharedInstance.startAnimating(FaqViewController.activityData)

    let xAxis = self.view.center.x // or use (view.frame.size.width / 2) // or use (faqWebView.frame.size.width / 2)
    let yAxis = self.view.center.y // or use (view.frame.size.height / 2) // or use (faqWebView.frame.size.height / 2)



let frame = CGRect(x: (xAxis - 50), y: (yAxis - 50), width: 45, height: 45)
 activityIndicator = NVActivityIndicatorView(frame: frame)
activityIndicator.type = . ballScale // add your type
activityIndicator.color = UIColor.red // add your color

self.view.addSubview(activityIndicator) // or use  webView.addSubview(activityIndicator)
activityIndicator.startAnimating()
}

for hide

func webView(_ webView: UIWebView, didFailLoadWithError error: Error)
    {
        hideactivityIndicator()
    }

   func webViewDidFinishLoad(webView: UIWebView!)
    {
      hideactivityIndicator()
    }

  func hideactivityIndicator()
  {

  activityIndicator. stopAnimating()
  activityIndicator.removeFromSuperview()
  }

answered Sep 15 '17 at 07:53

Anbu.Karthik

82,064
23
174
143

i tried the same for imageview but it didn't work? May I know what would be the problem. The imageview is a subview of a view. – Prabu Raj Sep 18 '17 at 06:46
imageview means – Anbu.Karthik Sep 18 '17 at 06:47
imageview means UIImageView which holds the UIImage – Prabu Raj Sep 18 '17 at 06:48
ha ha ha bro, imageview contains UIimage proerty , what u tried whats your concept – Anbu.Karthik Sep 18 '17 at 06:49
I have to load the image from the server. Untill it loads I have to show the loading indicator in that particular view alone. – Prabu Raj Sep 18 '17 at 06:50
your coding is sync or async , if sync is not show the loading indicator – Anbu.Karthik Sep 18 '17 at 06:51
I am using Alamofire to make a network call which is async network call. – Prabu Raj Sep 18 '17 at 06:53
then use Alamofire imageloader concept for loading indicator – Anbu.Karthik Sep 18 '17 at 06:55
Let us [continue this discussion in chat](http://chat.stackoverflow.com/rooms/154647/discussion-between-prabu-raj-and-anbu-karthik). – Prabu Raj Sep 18 '17 at 07:03

score 0 · Answer 2 · answered May 24 '18 at 13:51

0

You have to add it as a subView for the what ever the view you want to show it on. In you case you want to show only on UIWebView, then your code should look like

self.faqWebView.addSubView(activityIndicator)

answered May 24 '18 at 13:51

Venkatesh Chejarla

434
6
21

NVActivityIndicatorView only for particular view

2 Answers2

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