Basic steps involved in developing a QR code scanner

Developing a QR code scanner involves a few steps:

1. Choose a programming language: You can develop a QR code scanner in various programming languages such as Java, Swift, Python, etc. Choose a language that you are familiar with and that suits your needs.

2. Install a QR code scanning library: There are various libraries available that can be used to scan QR codes. Some popular ones include ZBar, ZXing, and Quaggajs. Install the library that suits your programming language.

3. Set up the user interface: Create a user interface that displays the camera feed and the scanned QR code.

4. Set up the camera: Use the camera of the device to capture the QR code. You can use the camera API of the device to set up the camera.

5. Decode the QR code: Once the QR code is captured, use the library to decode the information contained in the QR code.

6. Process the information: Once the information is decoded, you can use it as per your requirements. For example, you can save it to a database, display it on the screen, or perform any other action.Know more: QR scanner app

7. Test the app: Test the app thoroughly to ensure that it works as expected.

These are the basic steps involved in developing a QR code scanner. However, the specific implementation may vary depending on the programming language, library, and platform used.