Use AVCaptureFocusModeContinuousAutoFocus for focus mode on init

mikebuss · Sep 17, 2016 · e7a6f26 · e7a6f26
1 parent e5ea600
commit e7a6f26
Showing 1 changed file with 10 additions and 0 deletions.
diff --git a/Classes/ios/Scanners/MTBBarcodeScanner.m b/Classes/ios/Scanners/MTBBarcodeScanner.m
@@ -464,6 +464,16 @@ - (AVCaptureDevice *)newCaptureDeviceWithCamera:(MTBCamera)camera {
         newCaptureDevice = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];
     }
 
+    // Using AVCaptureFocusModeContinuousAutoFocus helps improve scan times
+    NSError *error = nil;
+    if ([newCaptureDevice lockForConfiguration:&error]) {
+        if (newCaptureDevice.isFocusPointOfInterestSupported &&
+            [newCaptureDevice isFocusModeSupported:AVCaptureFocusModeContinuousAutoFocus]) {
+            newCaptureDevice.focusMode = AVCaptureFocusModeContinuousAutoFocus;
+        }
+        [newCaptureDevice unlockForConfiguration];
+    }
+
     return newCaptureDevice;
 }