This library combines various scanning protocols into a single, easy-to-use interface.

Step 1. Add the JitPack repository to your settings.gradle file:

dependencyResolutionManagement {
    repositories {
        ...
        mavenCentral()
		maven { url 'https://jitpack.io' }
    }
}

Step 2. Add the dependency to your app build.gradle:

dependencies {
    implementation 'com.github.tillhub:scan-engine:x.x.x'
}

This SDK offers two ways to scan products conveniently:

• Camera scanner(SunmiScanner/DefaultScanner) : Manually register an activity or fragment result callback.
• Barcode scanner(BarcodeScannerImpl) : Register a BroadcastReceiver with the barcode scanner.

• Singleton Access: Obtain a singleton reference to the ScanEngine instance.
• Initialization: Create a per Activity or Fragment Scanner instance. SDK will automatically selects the appropriate scanner based on the device manufacturer (SunmiScanner or DefaultScanner).
• Initiate Scan: Call scanner.startCameraScanner() to initiate scanning. Pass appropriate scan key if needed, by default its null.
• Handle Scan Results: Subscribe to the scanEngine.observeScannerResults() flow to receive ScanEvent objects containing scan data.

override fun onCreate(savedInstanceState: Bundle?) {
    // ...
    
    val scanEngine =  ScanEngine.getInstance(context)
    val scanner = scanEngine.newCameraScanner(this)
    
    scannerButton.setOnClickListener {
        scanner.startCameraScanner()
    }

    // Observing scan result with scanEngine
    scanEngine.observeScannerResults().collect { scanEvent ->
         // Handle scanEvent result
    }
}

Here's example of Scanner interface:

interface Scanner {
    fun observeScannerResults(): StateFlow<ScanEvent>
    fun startCameraScanner(scanKey: String? = null)
}

• Singleton Access: Obtain a singleton reference to the ScanEngine instance. This will trigger a background scan using the system's broadcast mechanism.
• Handle Scan Results: Subscribe to scanEngine.observeScannerResults() for ScanEvent objects containing scan data.

override fun onCreate(savedInstanceState: Bundle?) {
    // ...
    
    val scanEngine =  ScanEngine.getInstance(context)
    
    // Observing scan result with scanEngine
    scanEngine.observeScannerResults().collect { scanEvent ->
        // Handle scanEvent result
    }
    
}

Here's example of BarcodeScanner interface:

interface BarcodeScanner {
    fun observeScannerResults(): Flow<ScanEvent>
    fun scanWithKey(scanKey: String? = null)
}

• Đorđe Hrnjez
• Martin Širok
• Chandrashekar Allam

MIT License

Copyright (c) 2024 Tillhub GmbH

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