Ios 在swift 3中启动应用程序时,如何在另一个ViewController中预加载UIWebView?
实际上,我在iOS应用程序中使用了两个Web视图。启动应用程序时,我想在SecondViewController中预加载第二个WebView。我尝试使用NSNotification Center预加载WebView,但它不起作用。如何在SecondViewController中预加载WebView 我用以下方法解决了类似的问题:Ios 在swift 3中启动应用程序时,如何在另一个ViewController中预加载UIWebView?,ios,swift3,webview,uiwebview,Ios,Swift3,Webview,Uiwebview,实际上,我在iOS应用程序中使用了两个Web视图。启动应用程序时,我想在SecondViewController中预加载第二个WebView。我尝试使用NSNotification Center预加载WebView,但它不起作用。如何在SecondViewController中预加载WebView 我用以下方法解决了类似的问题: 预加载包含webview的视图控制器,并将引用存储在Appdelegate中 在AppDelegate中调用self.preload.vc?.view.layoutSu
class AppDelegate: UIResponder, UIApplicationDelegate {
var window: UIWindow?
//
var preloadvc : PreloadVC? = nil
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
//Preloading
DispatchQueue.main.async(execute: {
self.preloadvc = PreloadVC()
//Thats the trick for preloading the view
self.preloadvc?.view.layoutSubviews()
})
return true
}
}
}
在任何地方进行演示:
@IBAction func ShowPreloaded(_ sender: Any) {
let appDelegate = UIApplication.shared.delegate as! AppDelegate
if let preloadedvc = appDelegate.preloadvc {
self.present(preloadedvc, animated: true, completion: nil)
}
}
我通过以下方式解决了类似的问题:
class AppDelegate: UIResponder, UIApplicationDelegate {
var window: UIWindow?
//
var preloadvc : PreloadVC? = nil
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
//Preloading
DispatchQueue.main.async(execute: {
self.preloadvc = PreloadVC()
//Thats the trick for preloading the view
self.preloadvc?.view.layoutSubviews()
})
return true
}
}
}
在任何地方进行演示:
@IBAction func ShowPreloaded(_ sender: Any) {
let appDelegate = UIApplication.shared.delegate as! AppDelegate
if let preloadedvc = appDelegate.preloadvc {
self.present(preloadedvc, animated: true, completion: nil)
}
}