我目前正在构建一个带有弹出模式视图的应用程序,其中包含WkWebView。当我想在此模式视图中上传图像并且出现“照片选择”时,模式视图只是退回到触发它的视图控制器。
我该如何预防?
import UIKit class PostWindow : UIViewController { @IBAction func close(sender: AnyObject) { dismissViewControllerAnimated(true, completion: nil) } override func viewDidLoad() { super.viewDidLoad() // do stuff here let myWebView:UIWebView = UIWebView(frame: CGRectMake(0, 70, UIScreen.mainScreen().bounds.width, UIScreen.mainScreen().bounds.height)) myWebView.loadRequest(NSURLRequest(URL: NSURL(string: "https://m.facebook.com/")!)) self.view.addSubview(myWebView) self.title = "News Feed" UIApplication.sharedApplication().setStatusBarStyle(UIStatusBarStyle.Default, animated: true) UIApplication.sharedApplication().statusBarHidden = false /*let addButton: UIBarButtonItem = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.Search, target: self, action: #selector(self.openSearch(_:))) self.navigationItem.setRightBarButtonItems([addButton], animated: true)*/ self.navigationController?.navigationBar.tintColor = UIColor.blackColor() } override func preferredStatusBarStyle() -> UIStatusBarStyle { return UIStatusBarStyle.LightContent }
}
谢谢!
我遇到了同样的问题。我发现文件上载操作表在选择一个选项时尝试自行关闭两次,这也导致模式被关闭。
一种解决方案是将UINavigationController包含webview的子类化,并重写dismissViewControllerAnimated以忽略它,除非它实际上有一个presentedViewController。
UINavigationController
dismissViewControllerAnimated
presentedViewController
像这样:
override func dismissViewControllerAnimated(flag: Bool, completion: (() -> Void)?) { if (self.presentedViewController != nil) { super.dismissViewControllerAnimated(flag, completion: completion) } }
如果您不使用导航控制器,则只需在Webview中覆盖此方法即可。