Would be great if Expo can support OCR without requiring detaching.
Something along the line of
"onFacesDetected (function)
Callback invoked with results of face detection on the preview. It will receive an object containing:"
"onBarCodeRead (function)
Callback that is invoked when a bar code has been successfully read. The callback is provided with an Object of the shape { type: string, data: string }, where the type refers to the bar code type that was scanned and the data is the information encoded in the bar code (in this case of QR codes, this is often a URL)"
but perhaps
"onTextDetected (function) " with list of strings it detected, would be really awesome. :D