Bloc instance becomes null when emitting state from callback in Dio sync case method

[skkeskar2000]

I’m encountering an issue in my Flutter app where the Bloc instance becomes null when emitting a state from a callback in Dio’s syncCase method. The listener triggers successfully, but the BlocBuilder does not rebuild the UI as expected.

Steps to Reproduce:

1. Set up a sync case method using Dio to upload data in the Flutter app.
2. Use a BlocConsumer and BlocBuilder to listen for state changes and rebuild the UI.
3. Emit a state from a callback in the Dio request, triggering a listener.
4. Observe that the listener works, but the BlocBuilder does not rebuild, and the Bloc instance is null when emitting the state.

Expected Behavior:
The BlocBuilder should rebuild the UI when a new state is emitted, even if the emission happens inside a callback.

Actual Behavior:
The listener triggers, but the BlocBuilder does not rebuild the UI, and the Bloc instance becomes null when emitting the state.

TestResponse response = await testRepo.syncCase(syncCaseModel, caseToSync.patientId, (send, total) {
  double overallFractionListener was triggered;
  progress = overallFraction * 10000;
  emit(SyncCaseUploading(total: total, currentUploading: uploading, progress: progress));
});

[github-actions]

@skkeskar2000 Infra and blank issues are only available for moderators. You're apparently using the wrong issue template.

Infra 和空白 issue 仅供管理人员使用，请选择其他 issue 模板创建 issue。