perbaikan kamera

lib/page/absent_camera/absent_camera.dart

@@ -790,23 +790,35 @@ class _AbsentCameraViewState extends State<AbsentCameraView> {
                                       GestureDetector(
                                         onTap: () async {
                                           if (cameras!.length > 1) {
-                                            _controller
-                                                ?.dispose()
-                                                .then((value) {
-                                              setState(() {});
-                                              CameraDescription? switchTo;
-                                              if (_cameraDescription ==
-                                                  cameras![0]) {
-                                                _cameraDescription =
-                                                    cameras![1];
-                                                switchTo = cameras![1];
-                                              } else {
-                                                _cameraDescription =
-                                                    cameras![0];
-                                                switchTo = cameras![0];
+                                            if (_cameraDescription!
+                                                    .lensDirection ==
+                                                CameraLensDirection.front) {
+                                              for (int i = 0;
+                                                  i < cameras!.length;
+                                                  i++) {
+                                                // detect only fornt camera
+                                                if (cameras![i].lensDirection ==
+                                                    CameraLensDirection.back) {
+                                                  _cameraDescription =
+                                                      cameras![i];
+                                                }
+                                              }
+                                            } else {
+                                              for (int i = 0;
+                                                  i < cameras!.length;
+                                                  i++) {
+                                                // detect only fornt camera
+                                                if (cameras![i].lensDirection ==
+                                                    CameraLensDirection.front) {
+                                                  _cameraDescription =
+                                                      cameras![i];
+                                                }
                                               }
+                                            }
+                                            _controller?.dispose().then((_) {
+                                              setState(() {});
                                               _controller = CameraController(
-                                                switchTo,
+                                                _cameraDescription!,
                                                 ResolutionPreset.medium,
                                                 imageFormatGroup:
                                                     ImageFormatGroup.jpeg,