expo-urovo-scanner-module

A Expo Module for Android that communicates with Urovo scanners.

Add the package to your npm dependencies

npm install expo-urovo-scanner-module

How to use

This package exposes 2 methods scanner for initializing the scanner and addChangeListener for attaching a listener for scan events, which then can be acted upon.

Example usage:

import {
  addChangeListener,
  ChangeEventPayload,
  scanner,
} from "expo-urovo-scanner-module";

const [isScannerReady, setIsScannerReady] = useState(false);

const handleScanEvent = useCallback(
    (val: ChangeEventPayload) => {

    // do something
}, [])


useEffect(() => {
    console.log("[Scanner] Setting up listener, ready:", isScannerReady);

    let sub: Subscription | undefined;

    if (isScannerReady) {
      if (__DEV__) {
        console.log("[Scanner] Skipping listener in dev mode");
      } else {
        sub = addChangeListener(handleScanEvent);
        console.log("[Scanner] Listener added");
      }
    }

    return () => {
      if (sub) {
        console.log("[Scanner] Cleaning up listener");
        sub.remove();
      }
    };
  }, [isScannerReady, handleScanEvent]);


useEffect(() => {
    if (!__DEV__) {
        scanner();
    }
    setIsScannerReady(true);
}, []);

Links

• Developer docs: https://en.urovo.com/developer/index.html
• Example projects with Java package: https://github.com/urovosamples/SDK_ReleaseforAndroid/tree/master/Samples/ScanManager (All example usage was written in Java, the logic for this module has been written in Kotlin and exposed as an Expo module.)

Timeline

v.10 works! v.12 attempt to get sound working v.13 perf gains