iOS 上的共享扩展不会打开我的本机应用程序

问题描述

我有一个 React Native 项目，我正在尝试使用 Xcode 和 swift 构建共享扩展。我曾尝试使用 https://github.com/meedan/react-native-share-menu 但它对我不起作用。我也尝试过其他库，但它们没有得到妥善维护，所以我决定构建自己的库。

我只想在我的应用中处理网址和文本。

我首先创建了一个 Share extension 并将其命名为 Share

以下是我用于共享扩展的 info.plist 文件

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>CFBundleDevelopmentRegion</key>
    <string>$(DEVELOPMENT_LANGUAGE)</string>
    <key>CFBundledisplayName</key>
    <string>Share</string>
    <key>CFBundleExecutable</key>
    <string>$(EXECUTABLE_NAME)</string>
    <key>CFBundleIdentifier</key>
    <string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
    <key>CFBundleInfoDictionaryVersion</key>
    <string>6.0</string>
    <key>CFBundleName</key>
    <string>$(PRODUCT_NAME)</string>
    <key>CFBundlePackageType</key>
    <string>$(PRODUCT_BUNDLE_PACKAGE_TYPE)</string>
    <key>CFBundleShortVersionString</key>
    <string>1.0</string>
    <key>CFBundLeversion</key>
    <string>1</string>
    <key>NSExtension</key>
    <dict>
        <key>NSExtensionAttributes</key>
        <dict>
            <key>NSExtensionActivationRule</key>
            <dict>
                <key>NSExtensionActivationSupportsText</key>
                <true/>
        <key>NSExtensionActivationSupportsWebURLWithMaxCount</key>
        <integer>1</integer>
            </dict>
        </dict>
    <key>NSExtensionPrincipalClass</key>
    <string>Share.ShareViewController</string>
    <key>NSExtensionPointIdentifier</key>
    <string>com.apple.share-services</string>
    </dict>
</dict>
</plist>

以下是我的 ShareViewController 代码

import UIKit
import Social
import CoreServices

class ShareViewController: UIViewController {

    private let typeText = String(kUTTypeText)
    private let typeURL = String(kUTTypeURL)
    private let appURL = "leaaoShare://"
    private let groupName = "group.leaaoShare"
    private let urlDefaultName = "incomingURL"

    override func viewDidAppear(_ animated: Bool) {
        super.viewDidAppear(animated)
        // 1
        guard let extensionItem = extensionContext?.inputItems.first as? NSExtensionItem,let itemProvider = extensionItem.attachments?.first else {
                self.extensionContext?.completeRequest(returningItems: nil,completionHandler: nil)
                return
        }

        if itemProvider.hasItemConformingToTypeIdentifier(typeText) {
            handleIncomingText(itemProvider: itemProvider)
        } else if itemProvider.hasItemConformingToTypeIdentifier(typeURL) {
            handleIncomingURL(itemProvider: itemProvider)
        } else {
            print("Error: No url or text found")
            self.extensionContext?.completeRequest(returningItems: nil,completionHandler: nil)
        }
    }

    private func handleIncomingText(itemProvider: NSItemProvider) {
      print("here22")
        itemProvider.loadItem(forTypeIdentifier: typeText,options: nil) { (item,error) in
            if let error = error { print("Text-Error: \(error.localizedDescription)") }


            if let text = item as? String {
                do {// 2.1
                    let detector = try NSDataDetector(types: NSTextCheckingResult.CheckingType.link.rawValue)
                    let matches = detector.matches(
                        in: text,options: [],range: NSRange(location: 0,length: text.utf16.count)
                    )
                    // 2.2
                    if let firstMatch = matches.first,let range = Range(firstMatch.range,in: text) {
                        self.saveURLString(String(text[range]))
                    }
                } catch let error {
                    print("Do-Try Error: \(error.localizedDescription)")
                }
            }

            self.openMainApp()
        }
    }

    private func handleIncomingURL(itemProvider: NSItemProvider) {
      print("here")
        itemProvider.loadItem(forTypeIdentifier: typeURL,error) in
            if let error = error { print("URL-Error: \(error.localizedDescription)") }

            if let url = item as? NSURL,let urlString = url.absoluteString {
                self.saveURLString(urlString)
            }

            self.openMainApp()
        }
    }

    private func saveURLString(_ urlString: String) {
        UserDefaults(suiteName: self.groupName)?.set(urlString,forKey: self.urlDefaultName)
    }

    private func openMainApp() {
        self.extensionContext?.completeRequest(returningItems: nil,completionHandler: { _ in
            guard let url = URL(string: self.appURL) else { return }
            _ = self.openURL(url)
        })
    }

    // Courtesy: https://stackoverflow.com/a/44499222/13363449 ??
    // Function must be named exactly like this so a selector can be found by the compiler!
    // Anyway - it's another selector in another instance that would be "performed" instead.
    @objc private func openURL(_ url: URL) -> Bool {
        var responder: UIResponder? = self
        while responder != nil {
            if let application = responder as? UIApplication {
                return application.perform(#selector(openURL(_:)),with: url) != nil
            }
            responder = responder?.next
        }
        return false
    }
}

以下是我的 AppDelegate 代码

func application(_ app: UIApplication,open url: URL,options: [UIApplication.OpenURLOptionsKey : Any] = [:]) -> Bool {
    if let scheme = url.scheme,scheme.caseInsensitiveCompare("leaaoShare") == .orderedSame,let page = url.host {
      
      var parameters: [String: String] = [:]
      URLComponents(url: url,resolvingAgainstBaseURL: false)?.queryItems?.forEach {
        parameters[$0.name] = $0.value
      }
      
      print("redirect(to: \(page),with: \(parameters))")
      
//      for parameter in parameters where parameter.key.caseInsensitiveCompare("url") == .orderedSame {
//        UserDefaults().set(parameter.value,forKey: "incomingURL")
//      }
    }
    
    return true
  }

我还为我的主要和共享扩展项目创建了 App groups

当我尝试从 safari 共享 url 时，我可以在共享表中看到我的应用程序，但是当我点击我的应用程序时没有任何反应。感觉就像我的应用程序崩溃了一样。我也没有在 Xcode 控制台中看到任何内容。此外，当我从共享表中单击我的应用程序时，我看不到 iOS 在共享 URL 时显示的帖子对话框。共享文本时发生同样的问题

我使用 Swift 创建了一个小型原生 iOS 应用程序，它可以从 https://github.com/PritishSawant/iosDevShare 获得。我正在关注这篇文章 https://medium.com/@damisipikuda/how-to-receive-a-shared-content-in-an-ios-application-4d5964229701 创建扩展

解决方法

我发现了这个问题。我忘了在我的主应用程序的信息列表中添加以下内容

<key>CFBundleURLTypes</key>
    <array>
        <dict>
            <key>CFBundleTypeRole</key>
            <string>Editor</string>
            <key>CFBundleURLSchemes</key>
            <array>
                <string>leaaoShare</string>
            </array>
        </dict>
    </array>