NVActivityIndicatorView 仅适用于特定视图
NVActivityIndicatorView only for particular view
我正在使用这个库 https://github.com/ninjaprox/NVActivityIndicatorView 来显示加载指示器。默认情况下,它会阻止整个视图控制器,但我如何才能仅针对特定视图显示 activity 指示符。例如,如果一个视图控制器包含一个 webview 和一些其他视图,activity 指示器应该只用于 webview,我应该能够与其他视图交互。
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()
}
}
例如显示 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()
}
隐藏
func webView(_ webView: UIWebView, didFailLoadWithError error: Error)
{
hideactivityIndicator()
}
func webViewDidFinishLoad(webView: UIWebView!)
{
hideactivityIndicator()
}
func hideactivityIndicator()
{
activityIndicator. stopAnimating()
activityIndicator.removeFromSuperview()
}
您必须将它添加为子视图,以便在任何视图上显示它。如果你只想在 UIWebView 上显示,那么你的代码应该类似于
self.faqWebView.addSubView(activityIndicator)
我正在使用这个库 https://github.com/ninjaprox/NVActivityIndicatorView 来显示加载指示器。默认情况下,它会阻止整个视图控制器,但我如何才能仅针对特定视图显示 activity 指示符。例如,如果一个视图控制器包含一个 webview 和一些其他视图,activity 指示器应该只用于 webview,我应该能够与其他视图交互。
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()
}
}
例如显示 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()
}
隐藏
func webView(_ webView: UIWebView, didFailLoadWithError error: Error)
{
hideactivityIndicator()
}
func webViewDidFinishLoad(webView: UIWebView!)
{
hideactivityIndicator()
}
func hideactivityIndicator()
{
activityIndicator. stopAnimating()
activityIndicator.removeFromSuperview()
}
您必须将它添加为子视图,以便在任何视图上显示它。如果你只想在 UIWebView 上显示,那么你的代码应该类似于
self.faqWebView.addSubView(activityIndicator)