From c12cfb16976b69c19affc4f802852c936741f845 Mon Sep 17 00:00:00 2001
From: Vadim <vadim.turko@gmail.com>
Date: Thu, 3 Aug 2023 22:46:01 +0200
Subject: [PATCH] Lock & release focus when taking a picture

---
 .../components/camera_container/bloc_container_camera.dart | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/lib/screens/metering/components/camera_container/bloc_container_camera.dart b/lib/screens/metering/components/camera_container/bloc_container_camera.dart
index fee9899..9c8658d 100644
--- a/lib/screens/metering/components/camera_container/bloc_container_camera.dart
+++ b/lib/screens/metering/components/camera_container/bloc_container_camera.dart
@@ -129,7 +129,6 @@ class CameraContainerBloc extends EvSourceBlocBase<CameraContainerEvent, CameraC
 
       await _cameraController!.initialize();
       await _cameraController!.setFlashMode(FlashMode.off);
-      await _cameraController!.setFocusMode(FocusMode.locked);
 
       _zoomRange = await Future.wait<double>([
         _cameraController!.getMinZoomLevel(),
@@ -206,7 +205,13 @@ class CameraContainerBloc extends EvSourceBlocBase<CameraContainerEvent, CameraC
 
   Future<double?> _takePhoto() async {
     try {
+      // https://github.com/flutter/flutter/issues/84957#issuecomment-1661155095
+      await _cameraController!.setFocusMode(FocusMode.locked);
+      await _cameraController!.setExposureMode(ExposureMode.locked);
       final file = await _cameraController!.takePicture();
+      await _cameraController!.setFocusMode(FocusMode.auto);
+      await _cameraController!.setExposureMode(ExposureMode.auto);
+
       final Uint8List bytes = await file.readAsBytes();
       Directory(file.path).deleteSync(recursive: true);