fix crash when poping a route with the camera preview (#32)

rushio-consulting · May 5, 2019 · 6fb9a2d · 6fb9a2d
1 parent 72c20e3
commit 6fb9a2d
Show file tree

Hide file tree

Showing 4 changed files with 12 additions and 6 deletions.
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## [2.0.1] - 5/05/2019
+
+* fix a crash when poping a route with the camera preview
+
 ## [2.0.0] - 2/05/2019
 
 * We now forward the result from firebase_ml_vision for onResult

diff --git a/example/pubspec.lock b/example/pubspec.lock
@@ -70,7 +70,7 @@ packages:
       path: ".."
       relative: true
     source: path
-    version: "2.0.0"
+    version: "2.0.1"
   flutter_test:
     dependency: "direct dev"
     description: flutter

diff --git a/lib/flutter_camera_ml_vision.dart b/lib/flutter_camera_ml_vision.dart
@@ -91,10 +91,12 @@ class CameraMlVisionState<T> extends State<CameraMlVision<T>> {
     }
   }
 
-  Future<void> _stop(bool silently) async {
-    if (_cameraController.value.isStreamingImages) {
-      await _cameraController.stopImageStream();
-    }
+  void _stop(bool silently) {
+    Future.microtask(() async {
+      if (_cameraController?.value?.isStreamingImages == true && mounted) {
+        await _cameraController.stopImageStream();
+      }
+    });
 
     if (silently) {
       _isStreaming = false;

diff --git a/pubspec.yaml b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: flutter_camera_ml_vision
 description: A flutter widget that show the camera stream and allow ML vision recognition on it, it allow you to detect barcodes, labels, text, faces...
-version: 2.0.0
+version: 2.0.1
 authors:
   - Jimmy Aumard <jimmy.aumard@gmail.com>
   - Rushio Consulting <dev@rushio-consulting.fr>