如何让 WKWebView 在后台显示
How to get WKWebView to show in background
我正在尝试让动画 gif 在后台播放,并在顶部显示一些标签和按钮。此代码运行并显示动画 gif,但不显示按钮或标签文本。
import Foundation
import UIKit
import WebKit
class LoginViewController: UIViewController {
@IBOutlet var containerView: UIView! = nil
var webViewBG: WKWebView?
@IBOutlet weak var loginButton: UIButton!
@IBOutlet weak var signUpButton: UIButton!
override func loadView() {
super.loadView()
self.webViewBG = WKWebView()
self.view = self.webViewBG
}
override func viewDidLoad() {
super.viewDidLoad()
let htmlPath = Bundle.main.path(forResource: "WebViewContent", ofType: "html")
let htmlURL = URL(fileURLWithPath: htmlPath!)
let html = try? Data(contentsOf: htmlURL)
var req = NSURLRequest(url:htmlURL)
self.webViewBG!.load(req as URLRequest)
webViewBG?.isUserInteractionEnabled = false;
self.loginButton.layer.borderColor = UIColor.white.cgColor
self.loginButton.layer.borderWidth = 2
self.signUpButton.layer.borderColor = UIColor.white.cgColor
self.signUpButton.layer.borderWidth = 2
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
override var preferredStatusBarStyle : UIStatusBarStyle {
return UIStatusBarStyle.lightContent
}
}
看起来这一行覆盖了你的视图控制器的视图,其中按钮是:
self.view = self.webViewBG
尝试
self.view.addSubview(self.webViewBG)
您可能还需要调整 z 位置,以便 webView 位于 'behind' 按钮,如下所示:
self.webViewBG.layer.zPosition = 0.5
更高的 zPosition 意味着视图更突出 'towards' 用户
我正在尝试让动画 gif 在后台播放,并在顶部显示一些标签和按钮。此代码运行并显示动画 gif,但不显示按钮或标签文本。
import Foundation
import UIKit
import WebKit
class LoginViewController: UIViewController {
@IBOutlet var containerView: UIView! = nil
var webViewBG: WKWebView?
@IBOutlet weak var loginButton: UIButton!
@IBOutlet weak var signUpButton: UIButton!
override func loadView() {
super.loadView()
self.webViewBG = WKWebView()
self.view = self.webViewBG
}
override func viewDidLoad() {
super.viewDidLoad()
let htmlPath = Bundle.main.path(forResource: "WebViewContent", ofType: "html")
let htmlURL = URL(fileURLWithPath: htmlPath!)
let html = try? Data(contentsOf: htmlURL)
var req = NSURLRequest(url:htmlURL)
self.webViewBG!.load(req as URLRequest)
webViewBG?.isUserInteractionEnabled = false;
self.loginButton.layer.borderColor = UIColor.white.cgColor
self.loginButton.layer.borderWidth = 2
self.signUpButton.layer.borderColor = UIColor.white.cgColor
self.signUpButton.layer.borderWidth = 2
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
override var preferredStatusBarStyle : UIStatusBarStyle {
return UIStatusBarStyle.lightContent
}
}
看起来这一行覆盖了你的视图控制器的视图,其中按钮是:
self.view = self.webViewBG
尝试
self.view.addSubview(self.webViewBG)
您可能还需要调整 z 位置,以便 webView 位于 'behind' 按钮,如下所示:
self.webViewBG.layer.zPosition = 0.5
更高的 zPosition 意味着视图更突出 'towards' 用户