call unbind.all() before create the preview

@@ -113,7 +113,6 @@ class MobileScanner(private val activity: Activity, private val textureRegistry:
 
 
     private var scanner = BarcodeScanning.getClient()
-    private lateinit var imageCapture: ImageCapture
 
     @ExperimentalGetImage
     private fun start(call: MethodCall, result: MethodChannel.Result) {
@@ -137,6 +136,7 @@ class MobileScanner(private val activity: Activity, private val textureRegistry:
 
         future.addListener({
             cameraProvider = future.get()
+            cameraProvider!!.unbindAll()
             textureEntry = textureRegistry.createSurfaceTexture()
 
             // Preview
@@ -162,14 +162,10 @@ class MobileScanner(private val activity: Activity, private val textureRegistry:
             }
             val analysis = analysisBuilder.build().apply { setAnalyzer(executor, analyzer) }
 
-            imageCapture = ImageCapture.Builder()
-                .setCaptureMode(ImageCapture.CAPTURE_MODE_MINIMIZE_LATENCY)
-                .build()
-
             // Select the correct camera
             val selector = if (facing == 0) CameraSelector.DEFAULT_FRONT_CAMERA else CameraSelector.DEFAULT_BACK_CAMERA
 
-            camera = cameraProvider!!.bindToLifecycle(activity as LifecycleOwner, selector, preview, imageCapture)
+            camera = cameraProvider!!.bindToLifecycle(activity as LifecycleOwner, selector, preview, analysis)
 
             val analysisSize = analysis.resolutionInfo?.resolution ?: Size(0, 0)
             val previewSize = preview.resolutionInfo?.resolution ?: Size(0, 0)