Android barcode scanner

I need android application (eclipse project) which implements QR Barcode scanner, the application has to be a standalone application without any needs of any other pre installed application (no intents \ calling for other app...) The QR recognition has to be high quality (I don't expect my users to scan within lab environment so they could be able to scan the QR code in outside environment, under the sun, etc...) I expect the QR barcode reading result the barcode into a string which I will use to manipulate later on. (I'm going to scan text type) The scan procedure will be like this: 1. user click a button in main activity. 2. scan screen will load 3. user aim the phone camera to the barcode scanner and waits until the QR barcode is being decoded. 4. new activity is being load with string of the QR Code Important: The application is for commercial use. (as far as I know zXing _**is ok**_ for commercial use) Android 2.2 as a minimum API level. (I will be happy if it could be even 2.1 !!) - if its not possible I'll be glad to know that. Thank you. ## Deliverables except the Scanning screen, **no special graphical is needed**! the scanning activity has to looked like a scanner device or something like.. feel free to be "creative". Only QR Code reading. Android 2.2 as a minimum API level. (I will be happy if it could be even 2.1 !!) If the minimum API is a problem, please let me know.