Question

我正在尝试将Flutter添加到现有的ios应用中。因此，在添加到生产应用程序之前，我决定先带一些演示应用程序。独立的flutter应用程序在android和ios中都可以正常工作。即使在现有的ios应用中，除插件外，它都可以正常工作。我遵循了教程并运行了所有命令，例如流畅运行，干净干净，但没有任何东西可以在现有应用中正常工作。在执行Pod安装时，它表明它正在添加插件并为其获取相关文件，但是当我使用该应用程序时，它会抛出以下错误

2020-07-29 11:49:17.631598+0530 ex2[62300:807253] flutter: Observatory listening on 
http://127.0.0.1:59471/oDJ2--syl-g=/
2020-07-29 11:49:18.701965+0530 ex2[62300:807244] [VERBOSE-2:ui_dart_state.cc(157)] 
Unhandled Exception: MissingPluginException(No implementation found for method resync on 
channel razorpay_flutter)
#0      MethodChannel._invokeMethod 
        (package:flutter/src/services/platform_channel.dart:154:7)
<asynchronous suspension>
#1      MethodChannel.invokeMethod 
        (package:flutter/src/services/platform_channel.dart:329:12)
#2      Razorpay._resync (package:razorpay_flutter/razorpay_flutter.dart:100:35)
#3      Razorpay.on (package:razorpay_flutter/razorpay_flutter.dart:90:5)
#4      _MyAppState.initState (package:razorpay_flutter_example/main.dart:41:15)
#5      StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4640:58)
#6      ComponentElement.mount (package:flutter/src/widgets/framework.dart:4476:5)
#7      Element.inflateWidget (package:flutter/src/widgets/framework.dart:3446:14)
#8      Element.updateChild (package:flutter/src/widgets/framework.dart:3214:18)
#9      RenderObjectToWidgetElement._rebuild 
        (package:flutter/src/widgets/binding.dart:1148:16)
#10     RenderObjectToWidgetElement.mount (package:flutter/src/widgets/binding.dart:1119:5)
#11     RenderObjectToWidgetAdapter.attachToRenderTree.<anonymous closure> 
        (package:flutter/src/widgets/binding.dart:1061:17)
#12     BuildOwner.buildScope (package:flutter/src/widgets/framework.dart:2607:19)
#13     RenderObjectToWidgetAdapter.attachToRenderTree 
        (package:flutter/src/widgets/binding.dart:1060:13)
#14     WidgetsBinding.attachRootWidget (package:flutter/src/widgets/binding.dart:941:7)
#15     WidgetsBinding.scheduleAttachRootWidget.<anonymous closure> 
        (package:flutter/src/widgets/binding.dart:922:7)
#16     _rootRun (dart:async/zone.dart:1180:38)
#17     _CustomZone.run (dart:async/zone.dart:1077:19)
#18     _CustomZone.runGuarded (dart:async/zone.dart:979:7)
#19     _CustomZone.bindCallbackGuarded.<anonymous closure> (dart:async/zone.dart:1019:23)
#20     _rootRun (dart:async/zone.dart:1184:13)
#21     _CustomZone.run (dart:async/zone.dart:1077:19)
#22     _CustomZone.bindCallback.<anonymous closure> (dart:async/zone.dart:1003:23)
#23     Timer._createTimer.<anonymous closure> (dart:async-patch/timer_patch.dart:23:15)
#24     _Timer._runTimers (dart:isolate-patch/timer_impl.dart:398:19)
#25     _Timer._handleMessage (dart:isolate-patch/timer_impl.dart:429:5)
#26     _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:168:12)

下面是我的AppDelegate.swift

 import UIKit
 import Flutter
 // Used to connect plugins (only if you have plugins with iOS platform code).
 import FlutterPluginRegistrant

 @UIApplicationMain
 class AppDelegate: FlutterAppDelegate {

       lazy var flutterEngine = FlutterEngine(name: "my flutter engine")

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

     // Runs the default Dart entry point with a default Flutter route.
       flutterEngine.run();
       // Used to connect plugins (only if you have plugins with iOS platform code).
    GeneratedPluginRegistrant.register(with: self.flutterEngine);
    
       return super.application(application, didFinishLaunchingWithOptions: launchOptions);
}
}

添加到现有iOS应用程序时缺少MissingPluginException

0 个答案: