Scan a QR Code
1. Page Objective
The Scan a QR Code page allows the user to:
- scan another user’s QR code
- pay or send money quickly
- avoid manual entry of the recipient’s number or information
It serves as the main entry point for QR code payments.

2. Access Context
This page is accessible from:
- the QR Code button (central button) in the navigation bar
- the Scan a code tab of the QR module
3. General Page Structure
3.1 Display Type
- Full‑screen view
- Dark background to improve scan visibility
- Centered and clearly defined scan area
🎯 Objective: facilitate fast and accurate QR code reading.
4. Page Header
4.1 Close Button
- Icon: ❌ (cross)
- Position: top left corner
- Function: close the scan screen and return to the previous screen
4.2 Sound / Vibration Icon
- Icon: muted speaker
- Function:
- enable or disable sound / vibration
- signal successful scanning
- Objective: allow discreet or audible use depending on the context
5. QR Code Scan Area
5.1 Scan Frame
- Square shape with illuminated borders
- Clearly indicates the target area
- Automatic detection of the QR code within this area
📌 The scan is triggered automatically as soon as a valid QR code is detected.
5.2 Camera Usage
- Access to the phone’s rear camera
- Requires camera access permission
- Automatic focus adjustment
6. Instruction Message
Displayed text:
“Scan a QR Code to pay or send”
🎯 Objective:
- clearly explain the expected action
- indicate the two possible uses:
- payment
- money transfer
7. Bottom Page Options
7.1 Scan a Code Tab
- Function:
- activate scan mode (active page)
- State:
- visually selected
7.2 My QR Code Tab
- Function:
- switch to the page displaying the personal QR code
- allow receiving money
- Action:
- opens the My QR Code page
📌 These two tabs allow smooth navigation between sending and receiving money.
8. Expected Functional Behaviors
âś… Automatic scanning without additional action
âś… Fast QR code recognition
âś… Immediate redirection to:
- the payment confirmation page
- or the amount entry page
âś… Visual / sound feedback after detection
9. Error Cases to Handle
❌ Camera access denied
❌ Invalid or unrecognized QR code
❌ Expired QR code or unavailable account
❌ Lighting or focus issues
👉 In these cases, a clear message and a corrective action must be provided.
10. Security
- No automatic payment without confirmation
- The scan retrieves only the necessary information
- All transactions must be validated by the user
- Data is secured and encrypted
11. UX / UI Rules
- Clearly visible scan area
- Short and explicit text
- High contrast to facilitate readability
- Simple and intuitive navigation
12. Summary
âś… Page dedicated to sending and paying via QR Code
âś… Fast experience with no manual input
âś… Enhanced security through user validation
âś… Key feature for modern payments