Cleaning

2024-03-22 07:27:27 +01:00
parent f691b20952
commit 5edff2f5d3
16 changed files with 112 additions and 369 deletions
@@ -0,0 +1,75 @@
+package net.helcel.fidelity.tools
+
+import android.content.ContentValues
+import android.util.Log
+import androidx.annotation.OptIn
+import androidx.camera.core.ExperimentalGetImage
+import androidx.camera.core.ImageAnalysis
+import androidx.camera.core.ImageProxy
+import com.google.mlkit.vision.barcode.BarcodeScanner
+import com.google.mlkit.vision.barcode.BarcodeScannerOptions
+import com.google.mlkit.vision.barcode.BarcodeScanning
+import com.google.mlkit.vision.barcode.common.Barcode
+import com.google.mlkit.vision.common.InputImage
+import net.helcel.fidelity.tools.BarcodeFormatConverter.formatToString
+import java.util.concurrent.Executors
+
+
+object BarcodeScanner {
+
+    @OptIn(ExperimentalGetImage::class)
+    private fun processImageProxy(
+        barcodeScanner: BarcodeScanner,
+        imageProxy: ImageProxy,
+        cb: (String?, String?) -> Unit
+    ) {
+
+        imageProxy.image?.let { image ->
+            val inputImage =
+                InputImage.fromMediaImage(
+                    image,
+                    imageProxy.imageInfo.rotationDegrees
+                )
+
+            barcodeScanner.process(inputImage)
+                .addOnSuccessListener { barcodeList ->
+                    val barcode =
+                        barcodeList.getOrNull(0)
+                    if (barcode != null)
+                        cb(barcode.displayValue, formatToString(barcode.format))
+                }
+                .addOnFailureListener {
+                    Log.e(ContentValues.TAG, it.message.orEmpty())
+                }.addOnCompleteListener {
+                    imageProxy.image?.close()
+                    imageProxy.close()
+                }
+        }
+    }
+
+    fun getAnalysisUseCase(cb: (String?, String?) -> Unit): ImageAnalysis {
+        val options = BarcodeScannerOptions.Builder().setBarcodeFormats(
+            Barcode.FORMAT_CODE_128,
+            Barcode.FORMAT_CODE_39,
+            Barcode.FORMAT_CODE_93,
+            Barcode.FORMAT_EAN_8,
+            Barcode.FORMAT_EAN_13,
+            Barcode.FORMAT_QR_CODE,
+            Barcode.FORMAT_UPC_A,
+            Barcode.FORMAT_UPC_E,
+            Barcode.FORMAT_PDF417
+        ).build()
+        val scanner = BarcodeScanning.getClient(options)
+        val analysisUseCase = ImageAnalysis.Builder()
+            .build()
+
+        analysisUseCase.setAnalyzer(
+            Executors.newSingleThreadExecutor()
+        ) { imageProxy ->
+            processImageProxy(scanner, imageProxy, cb)
+        }
+        return analysisUseCase
+    }
+
+
+}