我可以将Snapchat SDK（SnapKit）与SwiftUI一起使用吗？_Swift_Swiftui_Snapchat_Uiviewrepresentable

我可以将Snapchat SDK（SnapKit）与SwiftUI一起使用吗？

swift swiftui

我可以将Snapchat SDK（SnapKit）与SwiftUI一起使用吗？,swift,swiftui,snapchat,uiviewrepresentable,Swift,Swiftui,Snapchat,Uiviewrepresentable,我正在尝试与iOS应用程序集成，但我想使用SwiftUI而不是UIKit。我已经使用Snapkit完成了所需的设置，现在我正在尝试让snapchat登录按钮显示在我的应用程序中。我知道Snapkit SDK是为UIKit而不是SwiftUI设计的，但SwiftUI有办法使用UIViewRepresentable协议。我已经尝试过实现这个功能，但是登录按钮仍然不显示这是我的密码： import SwiftUI import UIKit import SCSDKLoginKit struct C

我正在尝试与iOS应用程序集成，但我想使用SwiftUI而不是UIKit。我已经使用Snapkit完成了所需的设置，现在我正在尝试让snapchat登录按钮显示在我的应用程序中。我知道Snapkit SDK是为UIKit而不是SwiftUI设计的，但SwiftUI有办法使用UIViewRepresentable协议。我已经尝试过实现这个功能，但是登录按钮仍然不显示

这是我的密码：

import SwiftUI
import UIKit
import SCSDKLoginKit

struct ContentView: View {
    var body: some View {
        SnapchatLoginButtonView()
    }
}

struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}


struct SnapchatLoginButtonView: UIViewRepresentable {

    func makeCoordinator() -> Coordinator {
        Coordinator()
    }

    func makeUIView(context: Context) -> SCSDKLoginButton {
        let s = SCSDKLoginButton()
        s.delegate = context.coordinator

        return s
    }

    func updateUIView(_ uiView: SCSDKLoginButton, context: Context) {
    }

    class Coordinator: NSObject, SCSDKLoginButtonDelegate {
        func loginButtonDidTap() {
        }
    }
}

我有一种感觉，我在SCSDKLoginButton中遗漏了一些东西，但不确定它是什么，所以这里有一个文件SCSDKLoginButton.h供参考。任何帮助都将不胜感激

//
//  SCSDKLoginButton.h
//  SCSDKLoginKit
//
//  Copyright © 2018 Snap, Inc. All rights reserved.
//

#import <UIKit/UIKit.h>

@protocol SCSDKLoginButtonDelegate
- (void)loginButtonDidTap;
@end

@interface SCSDKLoginButton : UIView

@property (nonatomic, weak, nullable) id<SCSDKLoginButtonDelegate> delegate;

- (instancetype)initWithCompletion:(nullable void (^)(BOOL success, NSError *error))completion NS_DESIGNATED_INITIALIZER;

@end

//
//SCSDKLoginButton.h
//SCSDKLoginKit
//
//版权所有©2018 Snap，Inc.保留所有权利。
//
#进口
@协议scsdkloginbuttonelegate
-（无效）登录Buttondidtap；
@结束
@接口SCSDKLoginButton:UIView
@属性（非原子、弱、可空）id委托；
-（instancetype）initWithCompletion:（可为空的void（^）（BOOL success，NSError*error））完成指定的初始值设定项；
@结束

巧合的是，在您发布您的问题大约3天后，我尝试在一个独家SwiftUI/iOS13项目中实现SnapKit SDK

不幸的是，我无法直接解决您的问题，因为Snapchat在适合使用iOS 13中引入的SceneDelegate&AppDelegate范例进行开发之前，必须通过其SDK解决一些关键问题。但我希望我能阐明你的问题，并将我的发现告诉其他处于类似困境的人

以下是我在寻求在SwiftUI中实现SCSDKLoginKit和SCSDKBitmojiKit时提出的以下问题/意见：

最基本的问题是，正如您正确认识到的，SCSDKLoginKit模块已经过时。SCSDKLoginClient.login（）要求调用视图符合（UIKIT）UIViewController类。因此，我们必须使用具有UIViewControllerRepresentable的变通方法来充当我们的SwiftUI UIKit中介
但是，根本问题在于SnapKit SDK文档尚未更新，无法为开发人员提供Snapchat Auth和应用程序逻辑之间的SceneDelegate链接。因此，即使您正确地实现了SCSDKLoginButton，也不是一帆风顺的

现在，为了直接回答您的问题，您正在尝试将SCSDKLoginButton封装在UIViewControllerRepresentable中，这是可以做到的，我相信比我更了解协调员等的人可以帮助您做到这一点。然而，我只是想表明，在snapchat提供更新的SDK之前，您目前的努力可能是徒劳的

以下是我的设置：

[ContentView.swift]

import SwiftUI

struct ContentView: View {
    @State private var isPresented = false

    var body: some View {

        Button("Snapchat Login Button") { self.isPresented = true} 
            .sheet(isPresented: $isPresented) {
                  LoginCVWrapper()
        }
    }
}

import SwiftUI
import UIKit
import SCSDKLoginKit

struct LoginCVWrapper: UIViewControllerRepresentable {

    func makeUIViewController(context: Context) -> UIViewController {
        return LoginViewController()
    }

    func updateUIViewController(_ uiViewController: UIViewController, context: Context) {
        //Unused in demonstration
    }
}

import UIKit
import SCSDKLoginKit

class LoginViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()

    }

    override func viewDidAppear(_ animated: Bool) {
        super.viewDidAppear(animated)
        performLogin() //Attempt Snap Login Here
    }

    //Snapchat Credential Retrieval Fails Here
    private func performLogin() {
        //SCSDKLoginClient.login() never completes once scene becomes active again after Snapchat redirect back to this app.
        SCSDKLoginClient.login(from: self, completion: { success, error in
            if let error = error {
                print("***ERROR LOC: manualTrigger() \(error.localizedDescription)***")
                return
            }
            if success {
                self.fetchSnapUserInfo({ (userEntity, error) in
                    print("***SUCCESS LOC: manualTrigger()***")
                    if let userEntity = userEntity {
                        DispatchQueue.main.async {
                            print("SUCCESS:\(userEntity)")
                        }
                    }
                })
            }
        })
    }

    private func fetchSnapUserInfo(_ completion: @escaping ((UserEntity?, Error?) -> ())){
        let graphQLQuery = "{me{displayName, bitmoji{avatar}}}"
        SCSDKLoginClient
            .fetchUserData(
                withQuery: graphQLQuery,
                variables: nil,
                success: { userInfo in

                    if let userInfo = userInfo,
                        let data = try? JSONSerialization.data(withJSONObject: userInfo, options: .prettyPrinted),
                        let userEntity = try? JSONDecoder().decode(UserEntity.self, from: data) {
                        completion(userEntity, nil)
                    }
            }) { (error, isUserLoggedOut) in
                completion(nil, error)
        }
    }
}

[LoginCVWrapper.swift]

import SwiftUI

struct ContentView: View {
    @State private var isPresented = false

    var body: some View {

        Button("Snapchat Login Button") { self.isPresented = true} 
            .sheet(isPresented: $isPresented) {
                  LoginCVWrapper()
        }
    }
}

import SwiftUI
import UIKit
import SCSDKLoginKit

struct LoginCVWrapper: UIViewControllerRepresentable {

    func makeUIViewController(context: Context) -> UIViewController {
        return LoginViewController()
    }

    func updateUIViewController(_ uiViewController: UIViewController, context: Context) {
        //Unused in demonstration
    }
}

import UIKit
import SCSDKLoginKit

class LoginViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()

    }

    override func viewDidAppear(_ animated: Bool) {
        super.viewDidAppear(animated)
        performLogin() //Attempt Snap Login Here
    }

    //Snapchat Credential Retrieval Fails Here
    private func performLogin() {
        //SCSDKLoginClient.login() never completes once scene becomes active again after Snapchat redirect back to this app.
        SCSDKLoginClient.login(from: self, completion: { success, error in
            if let error = error {
                print("***ERROR LOC: manualTrigger() \(error.localizedDescription)***")
                return
            }
            if success {
                self.fetchSnapUserInfo({ (userEntity, error) in
                    print("***SUCCESS LOC: manualTrigger()***")
                    if let userEntity = userEntity {
                        DispatchQueue.main.async {
                            print("SUCCESS:\(userEntity)")
                        }
                    }
                })
            }
        })
    }

    private func fetchSnapUserInfo(_ completion: @escaping ((UserEntity?, Error?) -> ())){
        let graphQLQuery = "{me{displayName, bitmoji{avatar}}}"
        SCSDKLoginClient
            .fetchUserData(
                withQuery: graphQLQuery,
                variables: nil,
                success: { userInfo in

                    if let userInfo = userInfo,
                        let data = try? JSONSerialization.data(withJSONObject: userInfo, options: .prettyPrinted),
                        let userEntity = try? JSONDecoder().decode(UserEntity.self, from: data) {
                        completion(userEntity, nil)
                    }
            }) { (error, isUserLoggedOut) in
                completion(nil, error)
        }
    }
}

[LoginViewController.swift]

import SwiftUI

struct ContentView: View {
    @State private var isPresented = false

    var body: some View {

        Button("Snapchat Login Button") { self.isPresented = true} 
            .sheet(isPresented: $isPresented) {
                  LoginCVWrapper()
        }
    }
}

import SwiftUI
import UIKit
import SCSDKLoginKit

struct LoginCVWrapper: UIViewControllerRepresentable {

    func makeUIViewController(context: Context) -> UIViewController {
        return LoginViewController()
    }

    func updateUIViewController(_ uiViewController: UIViewController, context: Context) {
        //Unused in demonstration
    }
}

import UIKit
import SCSDKLoginKit

class LoginViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()

    }

    override func viewDidAppear(_ animated: Bool) {
        super.viewDidAppear(animated)
        performLogin() //Attempt Snap Login Here
    }

    //Snapchat Credential Retrieval Fails Here
    private func performLogin() {
        //SCSDKLoginClient.login() never completes once scene becomes active again after Snapchat redirect back to this app.
        SCSDKLoginClient.login(from: self, completion: { success, error in
            if let error = error {
                print("***ERROR LOC: manualTrigger() \(error.localizedDescription)***")
                return
            }
            if success {
                self.fetchSnapUserInfo({ (userEntity, error) in
                    print("***SUCCESS LOC: manualTrigger()***")
                    if let userEntity = userEntity {
                        DispatchQueue.main.async {
                            print("SUCCESS:\(userEntity)")
                        }
                    }
                })
            }
        })
    }

    private func fetchSnapUserInfo(_ completion: @escaping ((UserEntity?, Error?) -> ())){
        let graphQLQuery = "{me{displayName, bitmoji{avatar}}}"
        SCSDKLoginClient
            .fetchUserData(
                withQuery: graphQLQuery,
                variables: nil,
                success: { userInfo in

                    if let userInfo = userInfo,
                        let data = try? JSONSerialization.data(withJSONObject: userInfo, options: .prettyPrinted),
                        let userEntity = try? JSONDecoder().decode(UserEntity.self, from: data) {
                        completion(userEntity, nil)
                    }
            }) { (error, isUserLoggedOut) in
                completion(nil, error)
        }
    }
}

[运行如下]：

有关SceneDelegate接口链接问题的更多信息：当您不可避免地实现SCSDKLoginClient.login（）调用时（可能是在按下SCSDKLoginButton时），Snapchat将打开，它将正确显示“授权访问”表，假设您的应用程序链接到Snapchat开发门户中

接受这些权限后，Snapchat将重定向到应用程序。但是，这就是应用程序与检索snapchat用户名/bitmoji之间的链接将崩溃的地方。这是因为在新的iOS 13应用程序中，SceneDelegate会在应用程序状态更改时进行处理，而不是像iOS 13之前的版本那样处理AppDelegate。因此，Snapchat返回用户数据，但您的应用程序从未检索到它

[前进]

SnapKitSDK（当前版本为1.4.3）需要与文档一起更新
我刚刚向Snapchat提交了一个支持问题，询问此更新何时发布，因此如果听到更多信息，我将更新此内容。抱歉如果您正在寻找SCSDKLoginButton（）问题的直接解决方案，我只是想让您知道在当前时刻，除此之外还有哪些挑战

[进一步阅读]

import SwiftUI

struct ContentView: View {
    @State private var isPresented = false

    var body: some View {

        Button("Snapchat Login Button") { self.isPresented = true} 
            .sheet(isPresented: $isPresented) {
                  LoginCVWrapper()
        }
    }
}

import SwiftUI
import UIKit
import SCSDKLoginKit

struct LoginCVWrapper: UIViewControllerRepresentable {

    func makeUIViewController(context: Context) -> UIViewController {
        return LoginViewController()
    }

    func updateUIViewController(_ uiViewController: UIViewController, context: Context) {
        //Unused in demonstration
    }
}

import UIKit
import SCSDKLoginKit

class LoginViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()

    }

    override func viewDidAppear(_ animated: Bool) {
        super.viewDidAppear(animated)
        performLogin() //Attempt Snap Login Here
    }

    //Snapchat Credential Retrieval Fails Here
    private func performLogin() {
        //SCSDKLoginClient.login() never completes once scene becomes active again after Snapchat redirect back to this app.
        SCSDKLoginClient.login(from: self, completion: { success, error in
            if let error = error {
                print("***ERROR LOC: manualTrigger() \(error.localizedDescription)***")
                return
            }
            if success {
                self.fetchSnapUserInfo({ (userEntity, error) in
                    print("***SUCCESS LOC: manualTrigger()***")
                    if let userEntity = userEntity {
                        DispatchQueue.main.async {
                            print("SUCCESS:\(userEntity)")
                        }
                    }
                })
            }
        })
    }

    private func fetchSnapUserInfo(_ completion: @escaping ((UserEntity?, Error?) -> ())){
        let graphQLQuery = "{me{displayName, bitmoji{avatar}}}"
        SCSDKLoginClient
            .fetchUserData(
                withQuery: graphQLQuery,
                variables: nil,
                success: { userInfo in

                    if let userInfo = userInfo,
                        let data = try? JSONSerialization.data(withJSONObject: userInfo, options: .prettyPrinted),
                        let userEntity = try? JSONDecoder().decode(UserEntity.self, from: data) {
                        completion(userEntity, nil)
                    }
            }) { (error, isUserLoggedOut) in
                completion(nil, error)
        }
    }
}

Facebook已经更新了他们的工具和文档，以纳入场景/应用程序代理。请参见此处的步骤“5.连接应用程序代理和场景代理”：

func scene(_ scene: UIScene, openURLContexts URLContexts: Set<UIOpenURLContext>) {
    for urlContext in URLContexts {
        let url = urlContext.url
        var options: [UIApplication.OpenURLOptionsKey : Any] = [:]
        options[.openInPlace] = urlContext.options.openInPlace
        options[.sourceApplication] = urlContext.options.sourceApplication
        options[.annotation] = urlContext.options.annotation
        SCSDKLoginClient.application(UIApplication.shared, open: url, options: options)
    }
}