Add logging for debugging errorsHEADmain

3 files changed, 39 insertions, 2 deletions

diff --git a/lib/home.dart b/lib/home.dart
index b9dce40..2e04d25 100644
--- a/lib/home.dart
+++ b/lib/home.dart
@@ -48,8 +48,9 @@ class _HomePageState extends State<HomePage> {
             });
           }
         });
-    _positionStream?.onError((error) {
+    _positionStream?.onError((error, stack) {
       _positionStream?.cancel();
+      logObservable.value = logObservable.value..add('$error\n$stack');
       Timer(Duration(seconds: 1), () => _initPositionStream(locationAccuracy));
     });
   }
diff --git a/lib/jotai.dart b/lib/jotai.dart
index 5524e6a..dc1b165 100644
--- a/lib/jotai.dart
+++ b/lib/jotai.dart
@@ -41,7 +41,15 @@ Future<T> fromString<T>(
       .then(
         // Going through all of these sounds like it's slower than necessary,
         // but it's very simple, and most of the options lists are very small.
-        (value) => options.firstWhere((option) => value == toString(option)),
+        (value) {
+          try {
+            return options.firstWhere((option) => value == toString(option));
+          } catch (error, stack) {
+            logObservable.value = logObservable.value
+              ..add('While loading $key:\n$error\n$stack');
+            rethrow;
+          }
+        },
       );
 }
 
@@ -82,6 +90,8 @@ final locationAccuracyObservable = observablePreference(
   LocationAccuracy.values,
 );
 
+final logObservable = Observable(<String>[]);
+
 class Observable<T> {
   T _value;
   int _nextId = 0;
diff --git a/lib/settings.dart b/lib/settings.dart
index 71906b1..997e1a9 100644
--- a/lib/settings.dart
+++ b/lib/settings.dart
@@ -149,6 +149,25 @@ class SelectTile<T> extends StatelessWidget {
   }
 }
 
+class LogPage extends StatelessWidget {
+  const LogPage({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(title: Text('Logs')),
+      body: ObserverBuilder(
+        observable: logObservable,
+        builder: (context, logs, _) => ListView.builder(
+          itemCount: logs.length,
+          itemBuilder: (context, index) =>
+              Text(logs[index], style: TextStyle(fontFamily: 'RobotoMono')),
+        ),
+      ),
+    );
+  }
+}
+
 class SettingsPage extends StatelessWidget {
   const SettingsPage({super.key});
 
@@ -244,6 +263,13 @@ class SettingsPage extends StatelessWidget {
                   onChanged: (value) => setLocationAccuracy(value),
                 ),
           ),
+          ListTile(
+            title: Text("View logs"),
+            onTap: () => Navigator.push(
+              context,
+              MaterialPageRoute(builder: (context) => LogPage()),
+            ),
+          ),
           Divider(),
           SectionHeader('About'),
           ListTile(