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Flow Structure

The SDK provides a 4-screen flow that users navigate through automatically:

1. Finger Selection Screen​

User selects which finger to use (thumb, index, middle, ring, or little, left or right hand)

2. Fingerprint Scanning Screen​

  • User places finger on scanner
  • Shows device initialization progress (0-100%)
  • Shows "Hold Still" message when finger is detected
  • Automatically captures fingerprint image

3. Processing Screen​

  • System processes captured data
  • Calls verification API with captured image
  • Shows "Verifying Finger Print, Please wait..." message

4. Result Screen​

Displays verification result

  1. Success: Shows customer name and "CONTINUE" button
  2. Failed: Shows error message and "RETRY" button
Info

Navigation between screens is handled automatically by the SDK. The flow returns a result via Activity Result API when completed.

Back Button Behavior​

  • On first screen (Finger Selection Screen): Back button cancels the flow
  • On other screens: Back button navigates to previous screen