Question

我有一个API方法可以返回特定联赛的球队。我需要做的就是传递一些参数。

例如，API网址如下所示：http://api.website.com/api/teams?season=last&league=0Xc334xUK4

这是我的代码：

@objc class APITeam: NSObject {

    var leagueObjectID: NSString!

    let baseUrl = "http://api.website.com/api"

    static let sharedInstance = APITeam()

    static let getTeamsEndpoint = "/teams"

    static let params = "?season=last&league="

    private override init() {}

    func getTeams (_ onSuccess: @escaping(Any) -> Void, onFailure: @escaping(Error) -> Void) {

        var request = URLRequest(url: URL(string: baseUrl + APITeam.getTeamsEndpoint + APITeam.params)!)

        let session = URLSession.shared

        request.httpMethod = "GET"

        let task = session.dataTask(with: request) { (data : Data?, response : URLResponse?, error : Error?) in

            if(error != nil){
                onFailure(error!)
            } else{

                do {

                    let result  = try JSONSerialization.jsonObject(with: data!)
                    onSuccess(result)

                } catch {

                    print(error)

                }

            }

        }
        task.resume()

    }

}

为了让这个API方法返回数据，我需要在提出请求时传递我想要团队的联盟的objectID。

我已尝试将参数添加到：

func getTeams (_ onSuccess: @escaping(Any) -> Void, onFailure: @escaping(Error) -> Void, leagueObjectID: String) {

 var request = URLRequest(url: URL(string: baseUrl + APITeam.getTeamsEndpoint + APITeam.params + leagueObjectID)!)

这并不像预期的那样有效。当我在另一个类中使用该方法时，＆＃34; leagueObjectID＆＃34;作为成功的另一部分，如果这是有意义的错误阻止。我需要能够将leagueObjectID传递给方法，以便在请求所在的URL末尾使用它。

这就是我在一个Objective-c类中调用APITeam的方法：

[[APITeam sharedInstance] getTeams:^(id result) {

} onFailure:^(NSError * error) {

}];

正如您所看到的，我添加到getTeams函数的额外参数不会显示，当我尝试手动添加它时，我收到错误。

你会怎么处理这个？一个例子将非常感激。

感谢您的时间

Answer 1

static可能无法正常使用，因为您已经习惯了其他语言。 static var的行为与class var相似。

如果我理解正确，这将满足您的需求

@objc class APITeam: NSObject {
    private static let baseUrl = "http://api.website.com/api"

    private static let getTeamsEndpoint = "/teams"

    let params = "?season=last&league="

    private override init() {}

    func getTeam(id: String, _ onSuccess: @escaping(Any) -> Void, onFailure: @escaping(Error) -> Void) {
        var request = URLRequest(url: URL(string: APITeam.baseUrl + APITeam.getTeamsEndpoint + APITeam.params + id)!)
        request.httpMethod = "GET"

        URLSession.shared.dataTask(with: request) { (data: Data?, response: URLResponse?, error: Error?) in
            if let error = error {
                onFailure(error)
            } else if let responseData = data {
                do {
                    let result = try JSONSerialization.jsonObject(with: responseData)
                    onSuccess(result)
                } catch {
                    print(error)

                }

            }

        }.resume()

    }

}

使用方法： APITeam().getTeam(id: "0Xc334xUK4", ..your completion handlers here..)

Answer 2

将其更改为

func getTeams (leagueObjectID: String, onSuccess: @escaping(Any) -> Void, onFailure: @escaping(Error) -> Void)

Answer 3

这对我有用：

@objc class APITeam: NSObject {

    var leagueObjectID: NSString!

    let baseUrl = "http://api.website.com/api"

    static let sharedInstance = APITeam()

    static let getTeamsEndpoint = "/teams"

    static let params = "?season=last&league="

    private override init() {}

    func getTeams (leagueObjectID: String, _ onSuccess: @escaping(Any) -> Void, onFailure: @escaping(Error) -> Void) {

        var request = URLRequest(url: URL(string: baseUrl + APITeam.getTeamsEndpoint + APITeam.params + leagueObjectID)!)

        let session = URLSession.shared

        request.httpMethod = "GET"

        let task = session.dataTask(with: request) { (data : Data?, response : URLResponse?, error : Error?) in

            if(error != nil){
                onFailure(error!)
            } else{

                do {

                    let result  = try JSONSerialization.jsonObject(with: data!)
                    onSuccess(result)

                } catch {

                    print(error)

                }

            }

        }
        task.resume()

    }

}

然后在我的Objective-C课程中：

[[APITeam sharedInstance] getTeamsWithLeagueObjectID:@"93PwHe5e4S" :^(id league) {
    NSLog(@"THE LEAGUE: %@", league);
} onFailure:^(NSError * error) {

}];

在尝试访问原始类之前构建应用程序也很重要。这对我来说是至关重要的一步。有时候我不需要这样做，但这一次，在我构建应用程序之前，我无法访问新更改的APITeam getTeams功能。

如何设置成功/失败块以便我可以使用Swift将字符串传递给它？

3 个答案: