Shutter effect on capture

app/src/main/java/org/mydomain/myscan/view/CameraScreen.kt

@@ -277,6 +277,16 @@ private fun CameraPreviewWithOverlay(
 ) {
     val width = LocalConfiguration.current.screenWidthDp
     val height = width / 3 * 4
+
+    var showShutter by remember { mutableStateOf(false) }
+    LaunchedEffect(cameraUiState.captureState.frozenImage) {
+        if (cameraUiState.captureState.frozenImage != null) {
+            showShutter = true
+            delay(200)
+            showShutter = false
+        }
+    }
+
     Box(
         modifier = Modifier
             .width(width.dp)
@@ -291,6 +301,13 @@ private fun CameraPreviewWithOverlay(
             )
 
         }
+        if (showShutter) {
+            Box(
+                modifier = Modifier
+                    .matchParentSize()
+                    .background(Color.Black.copy(alpha = 0.6f))
+            )
+        }
     }
 }