iOS共享扩展程序在Chrome中无法使用 [英] iOS Share Extension is not working in Chrome

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本文介绍了iOS共享扩展程序在Chrome中无法使用的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

适用于Safari，不适用于Chrome



也许这个问题很简单而且很愚蠢，但我是 iOS开发的新手，我找不到任何正确的解决方案来解决这个问题。


我需要获得：

1）page url <
2）页面名称

扩展名



strong> Info.plist 

 < dict> 
< key> NSExtensionAttributes< / key> 
< dict> 
< key> NSExtensionActivationRule< / key> 
< dict> 
< key> NSExrensionActivationSupportsText< / key> 
< true /> 
< key> NSExtensionActivationSupportsFileWithMaxCount< / key> 
<整数> 1< /整数> 
< key> NSExtensionActivationSupportsImageWithMaxCount< / key> 
<整数> 1< /整数> 
< key> NSExtensionActivationSupportsMovieWithMaxCount< / key> 
<整数> 20< /整数> 
< key> NSExtensionActivationSupportsWebPageWithMaxCount< / key> 
<整数> 1< /整数> 
< key> NSExtensionActivationSupportsWebURLWithMaxCount< / key> 
<整数> 0< /整数> 
< / dict> 
< key> NSExtensionJavaScriptPreprocessingFile< / key> 
< string> DemoPreprocessor< / string> 
< / dict> 
< key> NSExtensionMainStoryboard< / key> 
< string> MainInterface< / string> 
< key> NSExtensionPointIdentifier< / key> 
< string> com.apple.share-services< / string> 
< / dict>

我为Chrome添加了更多内容，但仍无法使用。对于Safari，这足够了： 

  NSExtensionActivationSupportsWebPageWithMaxCount，NSExtensionActivationSupportsWebURLWithMaxCount，NSExrensionActivationSupportsText，NSExtensionJavaScriptPreprocessingFile

我尝试了三种方法，使用和不使用DemoPreprocessor.js 。但所有这些都不适用于Chrome：



1。 ShareViewController.swift 



 覆盖func viewDidLoad（）{
 super.viewDidLoad（）
 
 let items = extensionContext？.inputItems 
 var itemProvider：NSItemProvider？ 
 
 if items！= nil&& items！.isEmpty == false {
 let item = items！[0] as！ NSExtensionItem 
如果let attachments = item.attachments {
 if！attachments.isEmpty {
 itemProvider =（附件[0] as？NSItemProvider）！ 
 
 
 
 $ let urlType = kUTTypePropertyList as String 
 if（（itemProvider？.hasItemConformingToTypeIdentifier（urlType））！= nil）{
 itemProvider？.loadItemForTypeIdentifier（urlType，options：nil，completionHandler：{
（item：NSSecureCoding ?, error：NSError！） - >无效
如果让resultDict = item as？NSDictionary { 
 self.linkName = resultDict [NSExtensionJavaScriptPreprocessingResultsKey]！[URL] as！String 
 self.linkUrl = resultDict [NSExtensionJavaScriptPreprocessingResultsKey]！[title] as！String 
} 
 
））
} 
 
}



2 ShareViewController.swift 



  override func viewDidLoad（）{
 super.viewDidLoad（） 
 
 let items = extensionContext？.inputItems 
 var itemProvider：NSItemProvider？ 
 
 if items！= nil&& items！.isEmpty == false {
 let item = items！[0] as！ NSExtensionItem 
如果let attachments = item.attachments {
 if！attachments.isEmpty {
 itemProvider =（附件[0] as？NSItemProvider）！ 
 
 
 
 $ b让urlType = kUTTypeURL作为NSString作为字符串
 
 if（（itemProvider？.hasItemConformingToTypeIdentifier（urlType）） ！= 
 itemProvider？.loadItemForTypeIdentifier（urlType，options：nil，completionHandler：{
 item，
中的错误self.linkName = self.contentText 
 self.linkUrl = \（item！）
}）
} 
 
}



3 ShareViewController.swift 



  override func viewDidLoad（）{
 super.viewDidLoad（）
 
 let items = extensionContext？.inputItems 
 var itemProvider：NSItemProvider？ 
 
 if items！= nil&& items！.isEmpty == false {
 let item = items！[0] as！ NSExtensionItem 
如果let attachments = item.attachments {
 if！attachments.isEmpty {
 itemProvider =（附件[0] as？NSItemProvider）！ 
} 
} 
} 
 
 if self.linkUrl.characters.count< 1 {
 if（（itemProvider？.hasItemConformingToTypeIdentifier（public.url））！= nil）{
 itemProvider？.loadItemForTypeIdentifier（public.url，options：nil，completionHandler：{
 item，self.linkUrl =\（item！）
}）
} 
} 
 
} 
  
 
  DemoPreprocessor.js  
  var MyPreprocessor = function（）{}; 
 
 MyPreprocessor.prototype = {
 run：function（arguments）{
 arguments.completionFunction（{URL：document.URL，pageSource：document.documentElement.outerHTML ，title：document.title，selection：window.getSelection（）。toString（）}）; 
} 
}; 
 
 var ExtensionPreprocessingJS = new MyPreprocessor; 
  
 
 
解决方案
在我的应用程序中，这是前一段时间，我不记得哪一个确切的步骤是必要的，所以我会发布我的设置，希望它可以作为解决方案的一个下降。
 
 
 
我在你的plist中看到的第一个问题是WebURL的0计数。
 
 
 
这是我的扩展名.plist的一部分。我认为允许任意加载与共享无关，它是访问我的服务器所必需的，但我会把它放在这里作为参考。 
 
 
 <密钥GT; NSAppTransportSecurity< /密钥GT; 
< dict> 
< key> NSAllowsArbitraryLoads< / key> 
< true /> 
< / dict> 
< key> NSExtension< / key> 
< dict> 
< key> NSExtensionAttributes< / key> 
< dict> 
< key> NSExtensionActivationRule< / key> 
< dict> 
< key> NSExtensionActivationSupportsImageWithMaxCount< / key> 
<整数> 1< /整数> 
< key> NSExtensionActivationSupportsWebURLWithMaxCount< / key> 
<整数> 1< /整数> 
< / dict> 
< / dict> 
< key> NSExtensionPointIdentifier< / key> 
< string> com.apple.share-services< / string> 
< key> NSExtensionPrincipalClass< / key> 
< string> ShareViewController< / string> 
< / dict> 
  
我的控制器负责获取URL的代码部分： 
 
 
  // MARK： -  NSExtensionRequestHandling 
 extension ShareViewController {
 override func beginRequestWithExtensionContext（context：NSExtensionContext）{
 super.beginRequestWithExtensionContext（context） 
 
 guard让provider =（context.inputItems.first？.attachments as？[NSItemProvider]）?.如果provider.hasItemConformingToTypeIdentifier（ kUTTypeURL as String）{
 provider.loadItemForTypeIdentifier（kUTTypeURL as String，options：nil）{url，错误
 guard让url = url as？ NSURL else {return self.cancel（）} 
 //根据网址做你想做的事
} 
} else {
 cancel（）
} 
} 
} 
  
至于获取网站的名称，认为。一种是使用您已经在项目中使用的JS脚本，另一种是查看提供程序是否具有文本类型的项目（包含站点名称），但它们是浏览器特定的项目（某些仅适用于Safari，一些适用于浏览器像Chrome）。我选择以不同的方式进行讨论，我使用了伪造的WKWebView（它永远不会被添加到视图层次结构中，它只是一个属性），并使用我从提供者处获得的URL发出请求。然后，我可以从它的JS代码拦截站点名称，如下所示： 
 
 
  func setupHiddenWebView（）{
 hiddenWebView = WKWebView（）
 hiddenWebView？.navigationDelegate = self 
} 
 
 func setupForURL（url：NSURL）{
（...）
 hiddenWebView ？？.Request（NSURLRequest（URL：url））
} 
 
 // MARK： -  WKNavigationDelegate 
扩展ShareView：WKNavigationDelegate {
 func webView（webView：WKWebView， didFinishNavigation导航：WKNavigation！）{
 webView.evaluateJavaScript（document.title）{结果，
中的错误让title = result as？ String else {return} 
 //根据页面的标题做你想做的事情
} 
} 
} 
  
 
Works for Safari, Doesn't work for Chrome



Maybe the question is simple and stupid but I am new to iOS Development and I cannot find any right solution to solve this issue.

  
I need to get:

  1) page url

  2) page name


Extension 



Info.plist
<dict>
    <key>NSExtensionAttributes</key>
    <dict>
        <key>NSExtensionActivationRule</key>
        <dict>
            <key>NSExrensionActivationSupportsText</key>
            <true/>
            <key>NSExtensionActivationSupportsFileWithMaxCount</key>
            <integer>1</integer>
            <key>NSExtensionActivationSupportsImageWithMaxCount</key>
            <integer>1</integer>
            <key>NSExtensionActivationSupportsMovieWithMaxCount</key>
            <integer>20</integer>
            <key>NSExtensionActivationSupportsWebPageWithMaxCount</key>
            <integer>1</integer>
            <key>NSExtensionActivationSupportsWebURLWithMaxCount</key>
            <integer>0</integer>
        </dict>
        <key>NSExtensionJavaScriptPreprocessingFile</key>
        <string>DemoPreprocessor</string>
    </dict>
    <key>NSExtensionMainStoryboard</key>
    <string>MainInterface</string>
    <key>NSExtensionPointIdentifier</key>
    <string>com.apple.share-services</string>
</dict>

I've added more to Chrome but it still does not work. For Safari, this is enough: 
NSExtensionActivationSupportsWebPageWithMaxCount, NSExtensionActivationSupportsWebURLWithMaxCount, NSExrensionActivationSupportsText, NSExtensionJavaScriptPreprocessingFile

I try three approaches, with and without DemoPreprocessor.js. But all don't work for Chrome:



1. ShareViewController.swift



override func viewDidLoad() {
    super.viewDidLoad()

    let items = extensionContext?.inputItems
    var itemProvider: NSItemProvider?

    if items != nil && items!.isEmpty == false {
        let item = items![0] as! NSExtensionItem
        if let attachments = item.attachments {
            if !attachments.isEmpty {
                itemProvider = (attachments[0] as? NSItemProvider)!
            }
        }
    }

    let urlType = kUTTypePropertyList as String
    if ((itemProvider?.hasItemConformingToTypeIdentifier(urlType)) != nil) {
        itemProvider?.loadItemForTypeIdentifier(urlType, options: nil, completionHandler: {
            (item: NSSecureCoding?, error: NSError!) -> Void in
            if let resultDict = item as? NSDictionary {
                self.linkName = resultDict[NSExtensionJavaScriptPreprocessingResultsKey]!["URL"] as! String
                self.linkUrl = resultDict[NSExtensionJavaScriptPreprocessingResultsKey]!["title"] as! String
            }

        })
    }

}




2 ShareViewController.swift



override func viewDidLoad() {
    super.viewDidLoad()

    let items = extensionContext?.inputItems
    var itemProvider: NSItemProvider?

    if items != nil && items!.isEmpty == false {
        let item = items![0] as! NSExtensionItem
        if let attachments = item.attachments {
            if !attachments.isEmpty {
                itemProvider = (attachments[0] as? NSItemProvider)!
            }
        }
    }

    let urlType = kUTTypeURL as NSString as String

    if ((itemProvider?.hasItemConformingToTypeIdentifier(urlType)) != nil) {
       itemProvider?.loadItemForTypeIdentifier(urlType, options: nil, completionHandler: {
           item, error in
           self.linkName = self.contentText
           self.linkUrl = "\(item!)"
       })
    }

}




3 ShareViewController.swift



override func viewDidLoad() {
    super.viewDidLoad()

    let items = extensionContext?.inputItems
    var itemProvider: NSItemProvider?

    if items != nil && items!.isEmpty == false {
        let item = items![0] as! NSExtensionItem
        if let attachments = item.attachments {
            if !attachments.isEmpty {
                itemProvider = (attachments[0] as? NSItemProvider)!
            }
        }
    }

    if self.linkUrl.characters.count < 1 {
        if ((itemProvider?.hasItemConformingToTypeIdentifier("public.url")) != nil) {
            itemProvider?.loadItemForTypeIdentifier("public.url", options: nil, completionHandler: {
                item, error in self.linkUrl = "\(item!)"
            })
        }
    }

}

DemoPreprocessor.js
var MyPreprocessor = function() {};

MyPreprocessor.prototype = {
    run: function(arguments) {
        arguments.completionFunction({"URL": document.URL, "pageSource": document.documentElement.outerHTML, "title": document.title, "selection": window.getSelection().toString()});
    }
};

var ExtensionPreprocessingJS = new MyPreprocessor;



 解决方案 
In my app I've made it work, however it was some time ago and I don't remember which exact steps are necessary, so I'll post my setup in hopes it will serve as a drop in solution.



The first issue I see in your plist is a 0 count for WebURLs.



This is a part of my extension's .plist. I think that allowing arbitrary loads has nothing to do with sharing and it was needed for accessing my server, nevertheless I'll put it here for reference.
<key>NSAppTransportSecurity</key>
<dict>
    <key>NSAllowsArbitraryLoads</key>
    <true/>
</dict>
<key>NSExtension</key>
<dict>
    <key>NSExtensionAttributes</key>
    <dict>
        <key>NSExtensionActivationRule</key>
        <dict>
            <key>NSExtensionActivationSupportsImageWithMaxCount</key>
            <integer>1</integer>
            <key>NSExtensionActivationSupportsWebURLWithMaxCount</key>
            <integer>1</integer>
        </dict>
    </dict>
    <key>NSExtensionPointIdentifier</key>
    <string>com.apple.share-services</string>
    <key>NSExtensionPrincipalClass</key>
    <string>ShareViewController</string>
</dict>

My controller's part of code responsible for getting a URL:
// MARK: - NSExtensionRequestHandling
extension ShareViewController {
    override func beginRequestWithExtensionContext(context: NSExtensionContext) {
        super.beginRequestWithExtensionContext(context)

        guard let provider = (context.inputItems.first?.attachments as? [NSItemProvider])?.first else { return cancel() }

        if provider.hasItemConformingToTypeIdentifier(kUTTypeURL as String) {
            provider.loadItemForTypeIdentifier(kUTTypeURL as String, options: nil) { url, error in
                guard let url = url as? NSURL else { return self.cancel() }
                // do what you want with the url
            }
        } else {
            cancel()
        }
    }
}

As for getting the site's name, well there are a few ways I think. One is to use the JS script that you already have in your project, another is to see whether the provider has an item with a text type (containing the site's name) but they are browser specific (some work only for Safari, some for browsers like Chrome). I chose to go about it in a different way, I use a fake WKWebView (which is never added to view hierarchy, it's just a property) and make a request with the url that I got from the provider. Then I'm able to intercept the site's name from it's JS code like so:
func setupHiddenWebView() {
    hiddenWebView = WKWebView()
    hiddenWebView?.navigationDelegate = self
}

func setupForURL(url: NSURL) {
    (...)
    hiddenWebView?.loadRequest(NSURLRequest(URL: url))
}

// MARK: - WKNavigationDelegate
extension ShareView: WKNavigationDelegate {
    func webView(webView: WKWebView, didFinishNavigation navigation: WKNavigation!) {
        webView.evaluateJavaScript("document.title") { result, error in
            guard let title = result as? String else { return }
            // do what you want with the page's title
        }
    }
}



                        
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