我正在构建一个带弹出模式视图的应用程序,其中包含一个WkWebView.当我想在此模态视图中上传图像并出现“照片选择”时,模态视图只会将其反射回启动它的视图控制器.
我怎么能防止这种情况？
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.我发现文件上传操作表在选择一个选项时会尝试解除两次,这也会导致模式被解除.
原文链接：https://www.f2er.com/swift/320024.html一个解决方案是子类化包含webview的UINavigationController并覆盖dismissViewControllerAnimated以忽略它,除非它实际上有一个presentViewController.
像这样：
override func dismissViewControllerAnimated(flag: Bool,completion: (() -> Void)?) {
if (self.presentedViewController != nil) {
super.dismissViewControllerAnimated(flag,completion: completion)
}
}
如果您没有使用导航控制器,请改为在webview中覆盖此方法.
