ios – 加载本地文件在模拟器中工作正常但在设备上崩溃

概述使用WKWebview播放本地文件在模拟器上工作,但在设备上给我这个错误(iOS 9.2.1) fail in didFailProvisionalNavigation Error Domain=NSPOSIXErrorDomain Code=1 "Operation not permitted"UserInfo={NSErrorFailingURLKey=file:///var/mobile/ 使用WKWebvIEw播放本地文件在模拟器上工作,但在设备上给我这个错误(iOS 9.2.1)

fail in dIDFailProvisionalNavigation Error Domain=NSPOSIXErrorDomain Code=1 "Operation not permitted"UserInfo={NSErrorFailingURLKey=file:///var/mobile/Containers/Data/Application/2FBE4DE6-9441-4C5A-BB1F-8598CA89664C/documents/courses/agdg_test1455704820291/index.HTML?jqueryfilePath=file:///var/mobile/Containers/Bundle/Application/5A442D34-3360-46C7-8B28-B6F3AED373CE/elearning.app/vIEw/jquery.Js&commandsfilePath=file:///var/mobile/Containers/Bundle/Application/5A442D34-3360-46C7-8B28-B6F3AED373CE/elearning.app/vIEw/commands.Js,_WKRecoveryAttempterErrorKey=<WKReloadFrameErrorRecoveryAttempter: 0x15e295f0>,NSErrorFailingURLStringKey=file:///var/mobile/Containers/Data/Application/2FBE4DE6-9441-4C5A-BB1F-8598CA89664C/documents/courses/agdg_test1455704820291/index.HTML?jqueryfilePath=file:///var/mobile/Containers/Bundle/Application/5A442D34-3360-46C7-8B28-B6F3AED373CE/elearning.app/vIEw/jquery.Js&commandsfilePath=file:///var/mobile/Containers/Bundle/Application/5A442D34-3360-46C7-8B28-B6F3AED373CE/elearning.app/vIEw/commands.Js}

这是配置webVIEw的代码：

let lesson:NSMutableArray = courseDB_Manager.getInstance().getRowDB("SELECT * FROM lesson_chapter WHERE lesson_chapter_ID = ?",args: [chaptertoplay],structType: "lesson_chapter")let occ: lesson_chapter_struct = lesson[0] as! lesson_chapter_structfiletoplay = Utility.getPath("courses/" + occ.lesson_chapter_fichIEr)let commandsfilePath = NSURL(fileURLWithPath: NSBundle.mainBundle().pathForResource("commands",ofType: "Js",inDirectory: "vIEw")!,isDirectory: false)let jqueryfilePath = NSURL(fileURLWithPath: NSBundle.mainBundle().pathForResource("jquery",isDirectory: false)let target = NSURL(fileURLWithPath: NSBundle.mainBundle().pathForResource("start",ofType: "HTML",isDirectory: false)let params = "?filetoplay=" + filetoplay + "&commandsfilePath=" + String(commandsfilePath) + "&jqueryfilePath=" + String(jqueryfilePath) + "&" + NSUUID().UUIDStringlet url = NSURL(string: Nsstring(string: target.absoluteString + params) as String)NSURLCache.sharedURLCache().removeAllCachedResponses()NSURLCache.sharedURLCache().diskCapacity = 0if(progress.current() != 1) {    let askForResume = UIAlertController(Title: "Resume",message: "Resume ????????????",preferredStyle: UIAlertControllerStyle.Alert)    askForResume.addAction(UIAlertAction(Title: "YES",style: .Default,handler: { (action: UIAlertAction!) in        self.resume = true        self.webVIEw.loadfileURL(url!,allowingReadAccesstoURL: url!)    }))    askForResume.addAction(UIAlertAction(Title: "NO",handler: { (action: UIAlertAction!) in        self.webVIEw.loadfileURL(url!,allowingReadAccesstoURL: url!)    }))    presentVIEwController(askForResume,animated: true,completion: nil)} else {    self.webVIEw.loadfileURL(url!,allowingReadAccesstoURL: url!)}

实现allowReadAccesstoURL后,我遇到了这个错误：

Received an unexpected URL from the web process: 'file:///[...]commands.Js'Received an invalID message "WebPageProxy.DecIDePolicyForNavigationAction" from the web process.

这是因为,Js要求的文件面临同样的问题？

func webVIEw(webVIEw: WKWebVIEw,decIDePolicyForNavigationAction navigationAction: WKNavigationAction,decisionHandler: (WKNavigationActionPolicy) -> VoID) {    decisionHandler(WKNavigationActionPolicy.Allow)}

更新1 – 已在第二次更新中解决

现在,我正在使用此代码：

let target = NSURL(fileURLWithPath: filetoplay + "/index.HTML",isDirectory: false)let params = "?commandsfilePath=" + String(commandsfilePath) + "&jqueryfilePath=" + String(jqueryfilePath) + "&" + NSUUID().UUIDStringlet url = NSURL(string: Nsstring(string: target.absoluteString + params) as String)if #available(iOS 9.0,*) {    self.webVIEw.loadfileURL(url!,allowingReadAccesstoURL: url!)} else {    do {        let fileUrl = try self.fileURLForBUGgyWKWebVIEw8(url!)        self.webVIEw.loadRequest(NSURLRequest(URL: fileUrl))    } catch let error as NSError {        print("Error: " + error.deBUGDescription)    }}

谁在模拟器(iOS 9)上正常工作,即加载fileUrl和Js代码包含的文件.
 但是在设备(也是iOS 9)上,它是从mainBundle加载的fileUrl和Js文件,而不是fileUrl的同一目录中的Js文件

例如：
fileUrl指向

“file:///var/mobile/Containers/Data/Application/4F2A96AF-8E58-41A6-A4D3-A19D254C048F/documents/courses/agdg_test1455704820291/index.HTML”

包括来自fileUrl子目录的Js文件不起作用

“file:///var/mobile/Containers/Data/Application/4F2A96AF-8E58-41A6-A4D3-A19D254C048F/documents/courses/agdg_test1455704820291/data/player.Js”

但是包括来自捆绑工作的Js文件是完美的.我还用iPad文件资源管理器验证了文件/data/player.Js是否存在,情况确实如此.

更新2

我通过将allowReadAccesstoURL设置为整个目录解决了这个问题,而不仅仅是我的索引文件.

由于我使用这种方法来配置WKWebVIEw,Js代码永远不会完成缓冲声音/视频在设备上播放…我不明白是什么区别使得执行之间的执行如此缓慢 – [WKWebVIEw loadfileURL：allowsReadAccesstoURL：]和[ WKWebVIEw loadRequest]

解决方法 在iOS 9及更高版本中,WKWebVIEw有一个新方法可以满足您的需求,– [WKWebVIEw loadfileURL：allowsReadAccesstoURL：]

确保使用该调用加载本地资源.

如果你支持iOS 8,那就有点难了.有关详细信息,请参见this answer.

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