Flutter踩坑记录-iOS端 fluwx无法收到回调

工程背景

iOS项目嵌套Flutter工程，iOS调用Flutter项目中的fluwx库进行WX登录 -> 注册 -> 返回:token到iOS端

⚠️坑：微信登录返回 flutter没有监听到回调

iOS代码

@objc func pushFlutter(){
        // 创建flutter engine
        let engine = FlutterEngine(name: "yu.FlutterEngine");
        engine.run(withEntrypoint: nil);
        
        
        // 创建通道
        let channel = FlutterMethodChannel(name: "test.ju.flutter", binaryMessenger: engine.binaryMessenger);
        // 发送消息
        channel.invokeMethod("goWxLogin", arguments: nil);
    }

Flutter代码

        print("微信登录");
        // 微信注册
        await registerWxApi(
            appId: "wxappid",
            doOnAndroid: true,
            doOnIOS: true,
            universalLink: "https://universalLink.hp");
        //发送登录
        await sendWeChatAuth(scope: "snsapi_userinfo").then((data) {
          print('跳转成功');
        });
        //监听回调
        weChatResponseEventHandler.listen((event) {
          print("监听回调");
          print(event);
        });

手机进行操作：微信登录、确定、返回。操作无异常
但是没有收到回调
发现控制台打印

flutter: 微信登录
flutter: 跳转成功

Could not register as server for FlutterObservatoryPublisher. Check your network settings and relaunch the application.

错误提示:Could not register as server for FlutterObservatoryPublisher. Check your network settings and relaunch the application.

问题原因:

微信登录返回的回调只是在iOS端并没有传递给Flutter

解决方法

@UIApplicationMain
class AppDelegate: FlutterAppDelegate {

    override func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
        // Override point for customization after application launch.
        return super.application(application, didFinishLaunchingWithOptions: launchOptions);
    }

}

让AppDelegate继承于FlutterAppDelegate 重新方法。问题解决

flutter: 监听回调