swift5 使用WKWebView跟h5没法交互

[JianWenXie]

用UIWebView可以实现跟h5交互
但是用WKWebView就没没响应
以下是iOS的方法调用
import UIKit
import WebKit
import WKWebViewJavascriptBridge
/// 工单报修
class VKBaseWebViewCtrl: VKBaseViewCtrl {

var web_url:String!
let webView = WKWebView(frame: CGRect(), configuration: WKWebViewConfiguration())
var bridge: WKWebViewJavascriptBridge!
override func viewDidLoad() {
    super.viewDidLoad()
    setupUI()
}
func setupUI() {
    webView.frame = view.bounds
    webView.navigationDelegate = self
    view.addSubview(webView)
    let url = URL.init(string: web_url)
    let request = URLRequest.init(url: url!)
    webView.load(request)
    // setup bridge
    bridge = WKWebViewJavascriptBridge(webView: webView)
    bridge.isLogEnable = true
    bridge.register(handlerName: "testiOSCallback") { (paramters, callback) in
    print("testiOSCallback called: \(String(describing: paramters))")
    callback?("Response from testiOSCallback")
    }
    bridge.call(handlerName: "testJavascriptHandler", data: ["foo": "before ready"], callback: nil)
}

override func viewDidLayoutSubviews() {
    super.viewDidLayoutSubviews()
    webView.frame = view.bounds
}

 init(weburl:String) {
    self.web_url = weburl
    super.init(nibName: nil, bundle: nil)
}
required init?(coder: NSCoder) {
    fatalError("init(coder:) has not been implemented")
}

}
extension VKBaseWebViewCtrl: WKUIDelegate,WKNavigationDelegate,UIWebViewDelegate{
// func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {
// hideHud()
// }
//
// func webView(_ webView: WKWebView, didFail navigation: WKNavigation!, withError error: Error) {
// hideHud()
// Log(message: "加载失败")
// }
func webView(_ webView: WKWebView, didStartProvisionalNavigation navigation: WKNavigation!) {
print("webViewDidStartLoad")
}

  func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {
      print("webViewDidFinishLoad")
  }

}

[zhusongyu]

跟swift5应该没关系，我用的好好的

[housenkui]

我已经重构了这个库.
如果您遇到麻烦，可以尝试使用它.
下载地址:
https://github.com/housenkui/WebViewJavascriptBridge
它更轻，使用更简单. 10分钟之内应该可以完成接入.

[Dast1Woop]

bridge 强引用试试，var gBridge: WKWebViewJavascriptBridge? ... gBridge = bridge

[Dast1Woop]

try this:
import Foundation
import WebKit
import WebViewJavascriptBridge

protocol WebviewWithBridgePr{
var webviewWithBridgeTuple:(webview:WKWebView,bridge:WKWebViewJavascriptBridge)?{set get}

func initWebviewAndBridge(urlStr:String) -> (WKWebView,WKWebViewJavascriptBridge)?

}

extension WebviewWithBridgePr{
func initWebviewAndBridge(urlStr:String) -> (WKWebView,WKWebViewJavascriptBridge)? {

// let config = WKWebViewConfiguration.init()
// let webv = WKWebView.init(frame: <#T##CGRect#>, configuration: T##WKWebViewConfiguration)
let webv = WKWebView.init()

    let url = URL.init(string: urlStr)
    
    guard let url = url else{
        return nil
    }
    
    let rqst = URLRequest.init(url: url, cachePolicy: Foundation.URLRequest.CachePolicy.useProtocolCachePolicy, timeoutInterval: 60)
    
    webv.load(rqst)
    
    let bridge = WKWebViewJavascriptBridge.init(for: webv)
    
    guard let bridge = bridge else{
        return nil
    }
    
    WKWebViewJavascriptBridge.enableLogging()
    
    return (webv, bridge)
}

}