AVCaptureMetadataOutputObjectsDelegate not called in swift 4 for QR scanner
Okay I've found an update here.
Found that AVCaptureMetadataOutputObjectsDelegate
method is changed
from
captureOutput(_ captureOutput: AVCaptureOutput!, didOutputMetadataObjects metadataObjects: [Any]!, from connection: AVCaptureConnection!)
to
metadataOutput(_ output: AVCaptureMetadataOutput, didOutput metadataObjects: [AVMetadataObject], from connection: AVCaptureConnection)
After changing this delegate method, its working good now.