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account.requestAccessToAccounts(with: accountType,options: nil,completion: {(success: Bool,error: NSError!) -> Void in

它说：@H_404_8@

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Cannot convert value of type ‘(Bool,NSError!) -> Void’ to expected argument type ‘ACAccountStoreRequestAccessCompletionHandler!’@H_404_8@

在那之前,我定义了“account”和“accountType”：@H_404_8@

@H_404_8@

let account = ACAccountStore()
let accountType = account.accountType(
        withAccountTypeIdentifier: ACAccountTypeIdentifierTwitter)

这是我的(使用Xcode 7和Swift 2)代码：@H_404_8@

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func getTimeline() {

    //https://api.twitter.com/1.1/statuses/user_timeline.json?screen_name=twitterapi&count=2
    let account = ACAccountStore()
    let accountType = account.accountType(
        withAccountTypeIdentifier: ACAccountTypeIdentifierTwitter)

    account.requestAccessToAccounts(with: accountType,error: NSError!) -> Void in

                                                if success {
                                                    let arrayOfAccounts =
                                                        account.accounts(with: accountType)

                                                    if arrayOfAccounts.count > 0 {
                                                        let twitterAccount = arrayOfAccounts.last as! ACAccount

                                                        let requestURL = URL(string:
                                                            "https://api.twitter.com/1.1/statuses/user_timeline.json")

                                                        let parameters = ["screen_name": self.userName!,"count" : "20"]

                                                        let postRequest = SLRequest(forServiceType:
                                                            SLServiceTypeTwitter,requestMethod: SLRequestMethod.GET,url: requestURL,parameters: parameters)

                                                        postRequest.account = twitterAccount

                                                        postRequest.perform(
                                                            handler: {(responseData: Data!,urlResponse: HTTPURLResponse!,error: NSError!) -> Void in

                                                                if error != nil {

                                                                    Crashlytics.sharedInstance().recordError(error)

                                                                }
                                                                do {
                                                                    self.dataSource = try JSONSerialization.jsonObject(with: responseData,options: JSONSerialization.ReadingOptions.mutableLeaves) as! [AnyObject]

                                                                    if self.dataSource.count != 0 {
                                                                        DispatchQueue.main.async {
                                                                            self.tableView.reloadData()
                                                                        }
                                                                    }
                                                                } catch {
                                                                    print("catching")
                                                                }
                                                        })
                                                    }
                                                } else {
                                                    print("Failed to access account")
                                                }
    })

}