[Text Recognition] TextRecognizer fails detect if a given TextRecognitionScript isn't ready

[njovy]

There's no way to check if TextRecognizer has a given TextRecognitionScript. It would be great if we could check before processing an image, rather than relying on exceptions.

Is there a way to remove a downloaded TextRecognitionScript?

[fbernaly]

https://github.com/flutter-ml/google_ml_kit_flutter/blob/develop/packages/google_mlkit_commons/lib/src/model_manager.dart#L39-L45

[njovy]

@fbernaly Thank you for the rapid response. OnDeviceTranslator or some other packages have a method to check if the translation model is downloaded. I don't see that code in TextRecognizer.java, how do I use ModelManager to manage language models? The translation plugin doesn't fail to translate. It starts to download, then translates. However, I don't see that behavior in text recognition.

[fbernaly]

TextRecognition does not require model managing, because model is already included in the API. On Device Translation does require model managing.

• https://github.com/flutter-ml/google_ml_kit_flutter/tree/develop/packages/google_mlkit_translation#managing-remote-models
• https://github.com/flutter-ml/google_ml_kit_flutter/blob/develop/packages/google_mlkit_commons/lib/src/model_manager.dart