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swift - Can I use the Snapchat SDK (SnapKit) with SwiftUI?

问题描述

I'm trying to integrate Snapkit with an iOS app but I want to use SwiftUI instead of UIKit. I've already done the required setup with Snapkit and now I'm trying to get the snapchat login button to display in my app. I know the Snapkit SDK is made for UIKit and not SwiftUI, but SwiftUI has a way to wrap UIViews into SwiftUI with the UIViewRepresentable protocol. I've tried implementing this but the login button still doesn't display.

Here's my code:

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() {
        }
    }
}

I have a feeling I'm missing something from within SCSDKLoginButton, but not sure what it is so here's the file SCSDKLoginButton.h for reference. Any help would be greatly appreciated!

//
//  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

标签： swiftswiftuisnapchatuiviewrepresentable

解决方案

@Stephen2697 指出 snap sdk 尚未为 iOS 13 构建是正确的，因为 SceneDelegate 现在处理 oauth 重定向而不是 AppDelegate。我想出了一种解决方法，可以在场景委托中使用 SCSDKLoginClient.application() 方法（这是为 appdelegate 制作的）。这是代码，将其添加到您的场景委托中，传递给您的 Snapchat 登录的完成处理程序将运行：

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)
    }
}

至于没有出现登录按钮，请确保将完成处理程序添加到 SCSDKLoginButton 实例，否则它将不起作用。像这样：

let s = SCSDKLoginButton { (success, error) in
        //handle login
    }

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