Add `unawaited_futures` (#1148)

add_to_app/android_view/flutter_module_using_plugin/lib/main.dart

@@ -167,7 +167,7 @@ class Contents extends StatelessWidget {
                     // a browser.
                     final url = Uri.parse('https://flutter.dev/docs');
                     if (await launcher.canLaunchUrl(url)) {
-                      launcher.launchUrl(url);
+                      await launcher.launchUrl(url);
                     }
                   },
                   child: const Text('Open Flutter Docs'),

add_to_app/multiple_flutters/multiple_flutters_module/lib/main.dart

@@ -97,7 +97,7 @@ class _MyHomePageState extends State<MyHomePage> {
                 // a browser.
                 final url = Uri.parse('https://flutter.dev/docs');
                 if (await launcher.canLaunchUrl(url)) {
-                  launcher.launchUrl(url);
+                  await launcher.launchUrl(url);
                 }
               },
               child: const Text('Open Flutter Docs'),

add_to_app/plugin/flutter_module_using_plugin/lib/main.dart

@@ -166,7 +166,7 @@ class Contents extends StatelessWidget {
                     // a browser.
                     final url = Uri.parse('https://flutter.dev/docs');
                     if (await launcher.canLaunchUrl(url)) {
-                      launcher.launchUrl(url);
+                      await launcher.launchUrl(url);
                     }
                   },
                   child: const Text('Open Flutter Docs'),

analysis_options.yaml

@@ -16,4 +16,5 @@ linter:
     package_prefixed_library_names: true
     test_types_in_equals: true
     throw_in_finally: true
+    unawaited_futures: true
     unnecessary_statements: true

desktop_photo_search/fluent_ui/lib/src/unsplash/unsplash.dart

@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'dart:async';
 import 'dart:convert';
 import 'dart:typed_data';
 
@@ -86,10 +87,10 @@ class Unsplash {
     });
 
     _log.info('GET ${photo.links!.downloadLocation}');
-    http.get(Uri.parse(photo.links!.downloadLocation!), headers: {
+    unawaited(http.get(Uri.parse(photo.links!.downloadLocation!), headers: {
       'Accept-Version': 'v1',
       'Authorization': 'Client-ID $_accessKey',
-    });
+    }));
 
     return futureBytes;
   }

desktop_photo_search/material/lib/src/unsplash/unsplash.dart

@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'dart:async';
 import 'dart:convert';
 import 'dart:typed_data';
 
@@ -86,10 +87,10 @@ class Unsplash {
     });
 
     _log.info('GET ${photo.links!.downloadLocation}');
-    http.get(Uri.parse(photo.links!.downloadLocation!), headers: {
+    unawaited(http.get(Uri.parse(photo.links!.downloadLocation!), headers: {
       'Accept-Version': 'v1',
       'Authorization': 'Client-ID $_accessKey',
-    });
+    }));
 
     return futureBytes;
   }

experimental/linting_tool/lib/model/profiles_store.dart

@@ -144,7 +144,7 @@ class ProfilesStore extends ChangeNotifier {
 
     /// Save file to disk if path was provided.
     if (savePath != null) {
-      file.saveTo(savePath);
+      await file.saveTo(savePath);
       return true;
     }
 

experimental/linting_tool/lib/pages/saved_lints_page.dart

@@ -104,7 +104,7 @@ class SavedLintsPage extends StatelessWidget {
 
                               break;
                             case 'Delete':
-                              profilesStore.deleteProfile(profile);
+                              await profilesStore.deleteProfile(profile);
                               break;
                             default:
                           }

experimental/linting_tool/lib/repository/hive_service.dart

@@ -13,7 +13,7 @@ class HiveService {
     List<T> existingProducts = await getBoxes(boxName);
 
     if (!existingProducts.contains(item)) {
-      openBox.add(item);
+      await openBox.add(item);
       return true;
     }
     return false;
@@ -28,7 +28,7 @@ class HiveService {
 
     for (var item in items) {
       if (!existingProducts.contains(item)) {
-        openBox.add(item);
+        await openBox.add(item);
       }
     }
   }
@@ -42,7 +42,7 @@ class HiveService {
 
     for (var box in boxes) {
       if (box == item) {
-        openBox.deleteAt(boxes.indexOf(item));
+        await openBox.deleteAt(boxes.indexOf(item));
       }
     }
   }
@@ -56,7 +56,7 @@ class HiveService {
 
     for (var box in boxes) {
       if (box == item) {
-        openBox.putAt(boxes.indexOf(item), newItem);
+        await openBox.putAt(boxes.indexOf(item), newItem);
       }
     }
   }

experimental/linting_tool/lib/widgets/lint_expansion_tile.dart

@@ -139,7 +139,7 @@ class _LintExpansionTileState extends State<LintExpansionTile> {
                 },
               );
               if (destinationProfileType == ProfileType.newProfile) {
-                showDialog<String>(
+                await showDialog<String>(
                   context: context,
                   builder: (context) {
                     return _NewProfileDialog(rule: rule);
@@ -147,7 +147,7 @@ class _LintExpansionTileState extends State<LintExpansionTile> {
                 );
               } else if (destinationProfileType ==
                   ProfileType.existingProfile) {
-                showDialog<String>(
+                await showDialog<String>(
                   context: context,
                   builder: (context) {
                     return _ExistingProfileDialog(rule: rule);

navigation_and_routing/lib/src/screens/navigator.dart

@@ -79,7 +79,7 @@ class _BookstoreNavigatorState extends State<BookstoreNavigator> {
                 var signedIn = await authState.signIn(
                     credentials.username, credentials.password);
                 if (signedIn) {
-                  routeState.go('/books/popular');
+                  await routeState.go('/books/popular');
                 }
               },
             ),

web/particle_background/lib/simple_animations_package.dart

@@ -372,7 +372,7 @@ class _ControlledAnimationState<T> extends State<ControlledAnimation>
       await Future.delayed(widget.delay!);
     }
     _waitForDelay = false;
-    executeInstruction();
+    await executeInstruction();
   }
 
   @override
@@ -391,23 +391,23 @@ class _ControlledAnimationState<T> extends State<ControlledAnimation>
       _controller.stop();
     }
     if (widget.playback == Playback.PLAY_FORWARD) {
-      _controller.forward();
+      await _controller.forward();
     }
     if (widget.playback == Playback.PLAY_REVERSE) {
-      _controller.reverse();
+      await _controller.reverse();
     }
     if (widget.playback == Playback.START_OVER_FORWARD) {
-      _controller.forward(from: 0.0);
+      await _controller.forward(from: 0.0);
     }
     if (widget.playback == Playback.START_OVER_REVERSE) {
-      _controller.reverse(from: 1.0);
+      await _controller.reverse(from: 1.0);
     }
     if (widget.playback == Playback.LOOP) {
-      _controller.repeat();
+      await _controller.repeat();
     }
     if (widget.playback == Playback.MIRROR && !_isCurrentlyMirroring) {
       _isCurrentlyMirroring = true;
-      _controller.repeat(reverse: true);
+      await _controller.repeat(reverse: true);
     }
 
     if (widget.playback != Playback.MIRROR) {