A stupid workaround to add continues scanning feature.

quickie/src/main/kotlin/io/github/g00fy2/quickie/QRScannerActivity.kt

@@ -27,9 +27,11 @@ import androidx.core.view.ViewCompat
 import androidx.core.view.WindowCompat
 import androidx.core.view.WindowInsetsCompat
 import com.google.mlkit.vision.barcode.common.Barcode
+import io.github.g00fy2.quickie.config.ContinuesScanning
 import io.github.g00fy2.quickie.config.ParcelableScannerConfig
 import io.github.g00fy2.quickie.databinding.QuickieScannerActivityBinding
 import io.github.g00fy2.quickie.extensions.toParcelableContentType
+import io.github.g00fy2.quickie.extensions.toQuickieContentType
 import io.github.g00fy2.quickie.utils.MlKitErrorHandler
 import java.util.concurrent.ExecutorService
 import java.util.concurrent.Executors
@@ -43,6 +45,7 @@ internal class QRScannerActivity : AppCompatActivity() {
   private var showTorchToggle = false
   private var showCloseButton = false
   private var useFrontCamera = false
+  private var continuousScanning: ContinuesScanning? = null
   internal var errorDialog: Dialog? = null
     set(value) {
       field = value
@@ -119,8 +122,19 @@ internal class QRScannerActivity : AppCompatActivity() {
             QRCodeAnalyzer(
               barcodeFormats = barcodeFormats,
               onSuccess = { barcode ->
-                it.clearAnalyzer()
-                onSuccess(barcode)
+                if (continuousScanning!=null){
+                   if (continuousScanning?.processResult(
+                    QRResult.QRSuccess(Intent().apply {
+                      putExtra(EXTRA_RESULT_BYTES, barcode.rawBytes)
+                      putExtra(EXTRA_RESULT_VALUE, barcode.rawValue)
+                      putExtra(EXTRA_RESULT_TYPE, barcode.valueType)
+                      putExtra(EXTRA_RESULT_PARCELABLE, barcode.toParcelableContentType())
+                    }.toQuickieContentType()))==true)
+                      onSuccess(barcode)
+                }else{
+                  it.clearAnalyzer()
+                  onSuccess(barcode)
+                }
               },
               onFailure = { exception -> onFailure(exception) },
               onPassCompleted = { failureOccurred -> onPassCompleted(failureOccurred) }
@@ -166,7 +180,7 @@ internal class QRScannerActivity : AppCompatActivity() {
         putExtra(EXTRA_RESULT_PARCELABLE, result.toParcelableContentType())
       }
     )
-    finish()
+    if (continuousScanning == null) finish()
   }
 
   private fun onFailure(exception: Exception) {
@@ -189,6 +203,10 @@ internal class QRScannerActivity : AppCompatActivity() {
   private fun applyScannerConfig() {
     intent?.let { IntentCompat.getParcelableExtra(it, EXTRA_CONFIG, ParcelableScannerConfig::class.java) }?.let {
       barcodeFormats = it.formats
+      if (it.continuousScanningId != -1) {
+        continuousScanning = ParcelableScannerConfig.continuousScanning[it.continuousScanningId]
+        ParcelableScannerConfig.continuousScanning.remove(it.continuousScanningId)
+      }
       binding.overlayView.setCustomText(it.stringRes)
       binding.overlayView.setCustomIcon(it.drawableRes)
       binding.overlayView.setHorizontalFrameRatio(it.horizontalFrameRatio)

quickie/src/main/kotlin/io/github/g00fy2/quickie/config/ContinuesScanning.kt

@@ -0,0 +1,19 @@
+package io.github.g00fy2.quickie.config
+
+import io.github.g00fy2.quickie.QRResult
+
+data class ContinuesScanning(val onSuccess :(QRResult.QRSuccess)->Unit, val cooldown: Int)  {
+  private var lastSuccess: Long = cooldown.toLong()
+  fun updateCooldown() {
+    lastSuccess = System.currentTimeMillis()
+  }
+  fun processResult(result :QRResult.QRSuccess):Boolean {
+    if (isInCooldown()) return false
+    updateCooldown()
+    onSuccess(result)
+    return true
+  }
+  fun isInCooldown(): Boolean {
+    return System.currentTimeMillis() - lastSuccess < cooldown
+  }
+}

quickie/src/main/kotlin/io/github/g00fy2/quickie/config/ParcelableScannerConfig.kt

@@ -14,4 +14,9 @@ internal class ParcelableScannerConfig(
   val useFrontCamera: Boolean,
   val showCloseButton: Boolean,
   val keepScreenOn: Boolean,
-) : Parcelable
+  val continuousScanningId: Int
+): Parcelable {
+  companion object {
+    val continuousScanning = mutableMapOf<Int,ContinuesScanning>()
+  }
+}

quickie/src/main/kotlin/io/github/g00fy2/quickie/config/ScannerConfig.kt

@@ -17,6 +17,7 @@ public class ScannerConfig internal constructor(
   internal val useFrontCamera: Boolean,
   internal val showCloseButton: Boolean,
   internal val keepScreenOn: Boolean,
+  internal val continuousScanning: ContinuesScanning?,
 ) {
 
   public class Builder {
@@ -29,6 +30,7 @@ public class ScannerConfig internal constructor(
     private var useFrontCamera: Boolean = false
     private var showCloseButton: Boolean = false
     private var keepScreenOn: Boolean = false
+    private var continuousScanning: ContinuesScanning ? =null
 
     /**
      * Set a list of interested barcode formats. List must not be empty.
@@ -78,6 +80,12 @@ public class ScannerConfig internal constructor(
      */
     public fun setKeepScreenOn(enable: Boolean): Builder = apply { keepScreenOn = enable }
 
+    /**
+     * Set the continuous scan mode.
+     * `null` to disable continuous scan mode.
+     */
+    public fun setContinuesMode(continuesScanning: ContinuesScanning?): Builder = apply { continuousScanning = continuesScanning }
+
     /**
      * Build the BarcodeConfig required by the ScanBarcode ActivityResultContract.
      */
@@ -92,6 +100,7 @@ public class ScannerConfig internal constructor(
         useFrontCamera = useFrontCamera,
         showCloseButton = showCloseButton,
         keepScreenOn = keepScreenOn,
+        continuousScanning = continuousScanning
       )
   }
 

quickie/src/main/kotlin/io/github/g00fy2/quickie/extensions/ScannerConfigExtensions.kt

@@ -3,8 +3,13 @@ package io.github.g00fy2.quickie.extensions
 import io.github.g00fy2.quickie.config.ParcelableScannerConfig
 import io.github.g00fy2.quickie.config.ScannerConfig
 
-internal fun ScannerConfig.toParcelableConfig() =
-  ParcelableScannerConfig(
+internal fun ScannerConfig.toParcelableConfig(): ParcelableScannerConfig {
+  var continuesScanningId = -1
+  if (continuousScanning != null) {
+    continuesScanningId = ParcelableScannerConfig.continuousScanning.size
+    ParcelableScannerConfig.continuousScanning[continuesScanningId] = this.continuousScanning
+  }
+  return ParcelableScannerConfig(
     formats = formats,
     stringRes = stringRes,
     drawableRes = drawableRes,
@@ -14,4 +19,6 @@ internal fun ScannerConfig.toParcelableConfig() =
     useFrontCamera = useFrontCamera,
     showCloseButton = showCloseButton,
     keepScreenOn = keepScreenOn,
-  )
+    continuesScanningId
+  )
+}