[BUG]: miss plugin when FlutterEngineGroup create multiple Engines

[dujj]

Flutter Sound Version : 8.4.2

-FULL

flutter pub deps | grep flutter_sound |-- flutter_sound 8.4.2 | |-- flutter_sound_platform_interface 8.4.2 | |-- flutter_sound_web 8.4.2 | | |-- flutter_sound_platform_interface...

Severity

• Result is not what expected

---

Platforms you faced the error

• iOS

Describe the bug FlutterEngineGroup create FlutterEngine, record audio is success, but play audio is failed.

review flutter_sound code in iOS, found that: in FlutterSoundPlayerManager.mm register plugin with: `

• (void)registerWithRegistrar:(NSObject)registrar { FlutterMethodChannel aChannel = [FlutterMethodChannel methodChannelWithName:@"com.dooboolab.flutter_sound_player" binaryMessenger:[registrar messenger]]; if (flutterSoundPlayerManager != nil) { NSLog(@"ERROR during registerWithRegistrar: flutterSoundPlayerManager != nil"); return; }

  flutterSoundPlayerManager = [[FlutterSoundPlayerManager alloc] init];
  flutterSoundPlayerManager ->channel = aChannel;
  [registrar addMethodCallDelegate: flutterSoundPlayerManager channel: aChannel];

} `

in FlutterSoundRecorderManager.mm register plugin with: `

• (void)registerWithRegistrar:(NSObject)registrar { FlutterMethodChannel aChannel = [FlutterMethodChannel methodChannelWithName:@"com.dooboolab.flutter_sound_recorder" binaryMessenger:[registrar messenger]]; if (flutterSoundRecorderManager != nil) NSLog(@"ERROR during registerWithRegistrar: flutterSoundRecorderManager != nil"); flutterSoundRecorderManager = [[FlutterSoundRecorderManager alloc] init]; flutterSoundRecorderManager ->channel = aChannel; [registrar addMethodCallDelegate: flutterSoundRecorderManager channel:aChannel]; } compare result: if (flutterSoundRecorderManager != nil)` FlutterSoundPlayerManager will return ,but FlutterSoundRecorderManager not . so record audio success, but play failed.

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