Add on-device text recognition (Android)

LocalTextRecognition.java

public void runTextRecognition(Bitmap selectedImage) {

    FirebaseVisionImage image = FirebaseVisionImage.fromBitmap(selectedImage);
    FirebaseVisionTextDetector detector = FirebaseVision.getInstance().getVisionTextDetector();

    detector.detectInImage(image)
            .addOnSuccessListener(new OnSuccessListener<FirebaseVisionText>() {
                @Override
                public void onSuccess(FirebaseVisionText text) {
                    processTextRecognitionResult(text);
                }
            })
            .addOnFailureListener(new OnFailureListener() {
                @Override
                public void onFailure(@NonNull Exception e) {
                    // Task failed with an exception
                    e.printStackTrace();
                }
            });
}