forward initial torch state on Android

@@ -368,11 +368,22 @@ class MobileScanner(
             val height = resolution.height.toDouble()
             val portrait = (camera?.cameraInfo?.sensorRotationDegrees ?: 0) % 180 == 0
 
+            // Start with 'unavailable' torch state.
+            var currentTorchState: Int = -1
+
+            camera?.cameraInfo?.let {
+                if (!it.hasFlashUnit()) {
+                    return@let
+                }
+
+                currentTorchState = it.torchState.value ?: -1
+            }
+
             mobileScannerStartedCallback(
                 MobileScannerStartParameters(
                     if (portrait) width else height,
                     if (portrait) height else width,
-                    camera?.cameraInfo?.hasFlashUnit() ?: false,
+                    currentTorchState,
                     textureEntry!!.id(),
                     numberOfCameras ?: 0
                 )

@@ -183,7 +183,7 @@ class MobileScannerHandler(
                     result.success(mapOf(
                         "textureId" to it.id,
                         "size" to mapOf("width" to it.width, "height" to it.height),
-                        "torchable" to it.hasFlashUnit,
+                        "currentTorchState" to it.currentTorchState,
                         "numberOfCameras" to it.numberOfCameras
                     ))
                 }

@@ -3,7 +3,7 @@ package dev.steenbakker.mobile_scanner.objects
 class MobileScannerStartParameters(
     val width: Double = 0.0,
     val height: Double,
-    val hasFlashUnit: Boolean,
+    val currentTorchState: Int,
     val id: Long,
     val numberOfCameras: Int
 )
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