import UIKit
import WebKit
class ViewController: UIViewController, WKUIDelegate, WKNavigationDelegate,WKScriptMessageHandler {
func userContentController(_ userContentController: WKUserContentController, didReceive message: WKScriptMessage) {
print("message ****** \(message.body)")
}
var webViewOne: WKWebView!
var contentController: WKUserContentController = WKUserContentController()
override func loadView() {
/* 动态加载并运行JS代码 */
// JS代码片段 这里没什么用，最好只在页面加载后调用
let jsStr = ""
// 根据JS字符串初始化WKUserScript对象
let userScript = WKUserScript(source: jsStr, injectionTime: .atDocumentEnd, forMainFrameOnly: true)
let userContentController = WKUserContentController()
userContentController.addUserScript(userScript)
// 根据生成的WKUserScript对象，初始化WKWebViewConfiguration
let webConfiguration = WKWebViewConfiguration()
webConfiguration.userContentController = userContentController
webViewOne = WKWebView(frame: .zero, configuration: webConfiguration)
webViewOne.uiDelegate = self
webViewOne.navigationDelegate = self
// 用观察者添加进度条
webViewOne.addObserver(self, forKeyPath: "estimatedProgress", options: .new, context: nil)
self.view = webViewOne
}
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
// https://tianji.rong360.com/tianjiwapreport/login?data=nD%2BRaNTUBXKJrM1QPpIetIpWI2iU5DejAjUo%2FRXJHMv%2BW13DSPQahuoMWVB1WxLBSyAwG7bcxRVgUE003PjpCrXD5DFxfthePEMRS7jd%2F4Wc%2BkmOEondu1Ckyn9lG9hhYaBobcA%2BanEaWnih7OLhtRwm%2FNT8eXMhWwPlmNvix0SWHY%2F3%2FFwxqaA1qNtQCTt7iYprTYXRRvdSr5ToKleZwO1aFQYPTGhFqLXe2sW2fi6oKE%2FZKdVQ2ovlICIo7qUS
let myURL = URL(string: "https://tianji.rong360.com/tianjiwapreport/login?data=nD%2BRaNTUBXKJrM1QPpIetIpWI2iU5DejAjUo%2FRXJHMv%2BW13DSPQahuoMWVB1WxLBSyAwG7bcxRVgUE003PjpCrXD5DFxfthePEMRS7jd%2F4Wc%2BkmOEondu1Ckyn9lG9hhYaBobcA%2BanEaWnih7OLhtRwm%2FNT8eXMhWwPlmNvix0SWHY%2F3%2FFwxqaA1qNtQCTt7iYprTYXRRvdSr5ToKleZwO1aFQYPTGhFqLXe2sW2fi6oKE%2FZKdVQ2ovlICIo7qUS")
let myRequest = URLRequest(url: myURL!)
webViewOne.load(myRequest)
contentController.add(self, name: "callbackHandler")
}
/**
* WKNavigationDelegate
*/
/* 页面开始加载时调用 */
func webView(_ webView: WKWebView, didStartProvisionalNavigation navigation: WKNavigation!) {
print("页面开始加载")
}
/* 当内容开始返回时调用 */
func webView(_ webView: WKWebView, didCommit navigation: WKNavigation!) {
print("内容开始返回")
}
/* 页面加载完成后时调用 */
func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {
// NSString *str = @"";
//
// [webView stringByEvaluatingJavaScriptFromString:str];}
print("页面加载结束 ******** \(webView.url?.absoluteString)")
}
/* 页面加载失败时调用 */
func webView(_ webView: WKWebView, didFailProvisionalNavigation navigation: WKNavigation!, withError error: Error) {
print("网页加载失败")
}
/* 接收到服务器跳转请求之后调用 */
func webView(_ webView: WKWebView, didReceiveServerRedirectForProvisionalNavigation navigation: WKNavigation!) {
print("收到服务器跳转请求之后调用")
}
/* 在收到响应后，决定是否跳转 */
func webView(_ webView: WKWebView, decidePolicyFor navigationResponse: WKNavigationResponse, decisionHandler: @escaping (WKNavigationResponsePolicy) -> Void) {
print("************** \(webView.url)")
decisionHandler(WKNavigationResponsePolicy.allow)
}
/*
* 这个是比较牛的方法，无论前进后退，都会调用这个方法
*/
func webView(_ webView: WKWebView, decidePolicyFor navigationAction: WKNavigationAction, decisionHandler: @escaping (WKNavigationActionPolicy) -> Void) {
// 可以通过此来修改相关内容
let jsString = "var list = document.getElementsByClassName('icon-icon-arrowleft')[0];list.onclick=function(){alert('点击了返回事件')}"
webView.evaluateJavaScript(jsString) { (any, error) in
}
// print("***************** \(navigationAction.navigationType)")
// print(navigationAction)
// webView.backForwardList.backList.count 这里存放的是能返回到的个数
// 这里存储的是可返回列表
print(webViewOne.backForwardList.backList.count)
// 这个获得的是当前页面的url
print(navigationAction.request.url!.absoluteString)
decisionHandler(WKNavigationActionPolicy.allow)
}
/*
* WKUIDelegate 使用
*/
/* WKWebView创建初始化加载的一些设置 */
func webView(_ webView: WKWebView, createWebViewWith configuration: WKWebViewConfiguration, for navigationAction: WKNavigationAction, windowFeatures: WKWindowFeatures) -> WKWebView? {
print("************** 1")
return webView
}
/* 与界面弹出提示框相关的代理方法 */
/* 处理JS中的提示框，若不使用该方法，则提示无效 */
func webView(_ webView: WKWebView, runJavaScriptAlertPanelWithMessage message: String, initiatedByFrame frame: WKFrameInfo, completionHandler: @escaping () -> Void) {
let alertVC = UIAlertController.init(title: "提示", message: message, preferredStyle: .alert)
alertVC.addAction(UIAlertAction.init(title: "确定", style: .default, handler: { (action) in
completionHandler()
}))
self.present(alertVC, animated: true, completion: nil)
}
/* 处理网页js中确认框，若不使用该方法，则确认框无效 */
func webView(_ webView: WKWebView, runJavaScriptConfirmPanelWithMessage message: String, initiatedByFrame frame: WKFrameInfo, completionHandler: @escaping (Bool) -> Void) {
print("调用了确认框")
}
/* 处理网页js中的文本输入 */
func webView(_ webView: WKWebView, runJavaScriptTextInputPanelWithPrompt prompt: String, defaultText: String?, initiatedByFrame frame: WKFrameInfo, completionHandler: @escaping (String?) -> Void) {
print("处理网页js的文本输入")
}
@available(iOS 9.0, *)
func webViewDidClose(_ webView: WKWebView) {
print("关闭了")
}
/* JS 调用 Native APP
* WKScriptMessageHandler
* 这个协议中包含一个必须实现的方法，这个方法是提高APP与web端交互的关键，它可以直接将接收到的JS脚本转为Swift对象
*/
/*
* 观察者，进度条部分
*/
override func observeValue(forKeyPath keyPath: String?, of object: Any?, change: [NSKeyValueChangeKey : Any]?, context: UnsafeMutableRawPointer?) {
if keyPath == "estimatedProgress" {
if object as? WKWebView == webViewOne {
print("进度条 ****** \(webViewOne.estimatedProgress)")
}
}
}
deinit {
self.removeObserver(self, forKeyPath: "estimatedProgress")
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}
