Settings: Split widgets into their own file

lib/screens/settings_screen.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:gitjournal/settings.dart';
 import 'package:gitjournal/utils.dart';
+import 'package:gitjournal/screens/settings_widgets.dart';
 
 import 'package:dynamic_theme/dynamic_theme.dart';
 
@@ -284,88 +285,3 @@ class FontSizeSettingsDialog extends StatelessWidget {
     return tile;
   }
 }
-
-class ListPreference extends StatelessWidget {
-  final String title;
-  final String currentOption;
-  final List<String> options;
-  final Function onChange;
-
-  ListPreference({
-    @required this.title,
-    @required this.currentOption,
-    @required this.options,
-    @required this.onChange,
-  });
-
-  @override
-  Widget build(BuildContext context) {
-    return ListTile(
-      title: Text(title),
-      subtitle: Text(currentOption),
-      onTap: () async {
-        var option = await showDialog<String>(
-            context: context,
-            builder: (BuildContext context) {
-              var children = <Widget>[];
-              for (var o in options) {
-                var tile = RadioListTile<String>(
-                  title: Text(o),
-                  value: o,
-                  groupValue: currentOption,
-                  onChanged: (String val) {
-                    Navigator.of(context).pop(val);
-                  },
-                );
-                children.add(tile);
-              }
-              return AlertDialog(
-                title: Text(title),
-                content: SingleChildScrollView(
-                  child: ListBody(
-                    children: children,
-                  ),
-                ),
-                contentPadding: const EdgeInsets.all(0.0),
-                actions: <Widget>[
-                  FlatButton(
-                    child: const Text('CANCEL'),
-                    onPressed: () {
-                      Navigator.of(context).pop();
-                    },
-                  )
-                ],
-              );
-            });
-
-        if (option != null) {
-          onChange(option);
-        }
-      },
-    );
-  }
-}
-
-class BoolPreference extends StatelessWidget {
-  final String title;
-  final bool defaultValue;
-  final Function(bool) onChange;
-
-  BoolPreference({
-    @required this.title,
-    @required this.defaultValue,
-    @required this.onChange,
-  });
-
-  @override
-  Widget build(BuildContext context) {
-    return ListTile(
-      title: Text(title),
-      trailing: Switch(
-        value: defaultValue,
-        onChanged: onChange,
-      ),
-      onTap: () => onChange(!defaultValue),
-    );
-  }
-}

lib/screens/settings_widgets.dart

@@ -0,0 +1,89 @@
+import 'package:flutter/material.dart';
+
+class ListPreference extends StatelessWidget {
+  final String title;
+  final String currentOption;
+  final List<String> options;
+  final Function onChange;
+  final bool enabled;
+
+  ListPreference({
+    @required this.title,
+    @required this.currentOption,
+    @required this.options,
+    @required this.onChange,
+    this.enabled = true,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return ListTile(
+      title: Text(title),
+      subtitle: Text(currentOption),
+      onTap: () async {
+        var option = await showDialog<String>(
+            context: context,
+            builder: (BuildContext context) {
+              var children = <Widget>[];
+              for (var o in options) {
+                var tile = RadioListTile<String>(
+                  title: Text(o),
+                  value: o,
+                  groupValue: currentOption,
+                  onChanged: (String val) {
+                    Navigator.of(context).pop(val);
+                  },
+                );
+                children.add(tile);
+              }
+              return AlertDialog(
+                title: Text(title),
+                content: SingleChildScrollView(
+                  child: ListBody(
+                    children: children,
+                  ),
+                ),
+                contentPadding: const EdgeInsets.all(0.0),
+                actions: <Widget>[
+                  FlatButton(
+                    child: const Text('CANCEL'),
+                    onPressed: () {
+                      Navigator.of(context).pop();
+                    },
+                  )
+                ],
+              );
+            });
+
+        if (option != null) {
+          onChange(option);
+        }
+      },
+      enabled: enabled,
+    );
+  }
+}
+
+class BoolPreference extends StatelessWidget {
+  final String title;
+  final bool defaultValue;
+  final Function(bool) onChange;
+
+  BoolPreference({
+    @required this.title,
+    @required this.defaultValue,
+    @required this.onChange,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return ListTile(
+      title: Text(title),
+      trailing: Switch(
+        value: defaultValue,
+        onChanged: onChange,
+      ),
+      onTap: () => onChange(!defaultValue),
+    );
+  }
+}