How to Create a SwiftUI Barcode Scanner Project for macOS and iOS

In the previous tutorial, we explored how to build a SwiftUI barcode scanner app for macOS using the Dynamsoft Capture Vision C++ SDK. Since SwiftUI is a cross-platform framework supporting both macOS and iOS, and the Dynamsoft Capture Vision SDK provides a Swift Package Manager (SPM) for iOS, it is theoretically possible to make the SwiftUI project compatible with both platforms. This article demonstrates how to modify the existing macOS barcode scanner project to support iOS.

iOS 1D/2D Barcode Scanner Demo Video

Prerequisites

• 
  : The Swift Package Manager (SPM) for the Dynamsoft Capture Vision SDK.

Configuring SwiftUI Barcode Scanner Project for macOS and iOS

1. 
   

   In Xcode, select File > Add Package Dependencies to add the capture-vision-spm package:

   
   
   
   


2. 
   

   For macOS-specific bridging code that is unnecessary for iOS, ensure the build passes by conditionally excluding the macOS code using macros in *.h and *.mm files:
   
   

   
   
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   #include <TargetConditionals.h>
   
   
   
   #if defined(__APPLE__) && defined(__MACH__) && !TARGET_OS_IPHONE
   
   
   
   // macOS code
   
   
   
   #endif
   
   

   
   
   


3. 
   

   To access the camera on iOS, go to Project > Info and add the NSCameraUsageDescription key:

   
   
   
   


4. 
   

   Run the barcode scanner app to see the results:

   
   
   
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