Only set `flutter run` usage values for targeted device platforms (#46931)

packages/flutter_tools/lib/src/commands/run.dart

diff --git a/packages/flutter_tools/lib/src/commands/run.dart b/packages/flutter_tools/lib/src/commands/run.dart
index f854a92..811761e 100644
--- a/packages/flutter_tools/lib/src/commands/run.dart
+++ b/packages/flutter_tools/lib/src/commands/run.dart
@@ -228,30 +228,55 @@
   Future<Map<CustomDimensions, String>> get usageValues async {
     String deviceType, deviceOsVersion;
     bool isEmulator;
+    bool anyAndroidDevices = false;
+    bool anyIOSDevices = false;
 
     if (devices == null || devices.isEmpty) {
       deviceType = 'none';
       deviceOsVersion = 'none';
       isEmulator = false;
     } else if (devices.length == 1) {
-      deviceType = getNameForTargetPlatform(await devices[0].targetPlatform);
+      final TargetPlatform platform = await devices[0].targetPlatform;
+      anyAndroidDevices = platform == TargetPlatform.android;
+      anyIOSDevices = platform == TargetPlatform.ios;
+      deviceType = getNameForTargetPlatform(platform);
       deviceOsVersion = await devices[0].sdkNameAndVersion;
       isEmulator = await devices[0].isLocalEmulator;
     } else {
       deviceType = 'multiple';
       deviceOsVersion = 'multiple';
       isEmulator = false;
+      for (Device device in devices) {
+        final TargetPlatform platform = await device.targetPlatform;
+        anyAndroidDevices = anyAndroidDevices || (platform == TargetPlatform.android);
+        anyIOSDevices = anyIOSDevices || (platform == TargetPlatform.ios);
+        if (anyAndroidDevices && anyIOSDevices) {
+          break;
+        }
+      }
     }
-    final String modeName = getBuildInfo().modeName;
-    final AndroidProject androidProject = FlutterProject.current().android;
-    final IosProject iosProject = FlutterProject.current().ios;
-    final List<String> hostLanguage = <String>[
-      if (androidProject != null && androidProject.existsSync())
-        if (androidProject.isKotlin) 'kotlin' else 'java',
-      if (iosProject != null && iosProject.exists)
-        if (await iosProject.isSwift) 'swift' else 'objc',
-    ];
 
+    String androidEmbeddingVersion;
+    final List<String> hostLanguage = <String>[];
+    if (anyAndroidDevices) {
+      final AndroidProject androidProject = FlutterProject.current().android;
+      if (androidProject != null && androidProject.existsSync()) {
+        hostLanguage.add(androidProject.isKotlin ? 'kotlin' : 'java');
+        androidEmbeddingVersion = androidProject.getEmbeddingVersion().toString().split('.').last;
+      }
+    }
+    if (anyIOSDevices) {
+      final IosProject iosProject = FlutterProject.current().ios;
+      if (iosProject != null && iosProject.exists) {
+        final Iterable<File> swiftFiles = iosProject.hostAppRoot
+            .listSync(recursive: true, followLinks: false)
+            .whereType<File>()
+            .where((File file) => fs.path.extension(file.path) == '.swift');
+        hostLanguage.add(swiftFiles.isNotEmpty ? 'swift' : 'objc');
+      }
+    }
+
+    final String modeName = getBuildInfo().modeName;
     return <CustomDimensions, String>{
       CustomDimensions.commandRunIsEmulator: '$isEmulator',
       CustomDimensions.commandRunTargetName: deviceType,
@@ -259,7 +284,8 @@
       CustomDimensions.commandRunModeName: modeName,
       CustomDimensions.commandRunProjectModule: '${FlutterProject.current().isModule}',
       CustomDimensions.commandRunProjectHostLanguage: hostLanguage.join(','),
-      CustomDimensions.commandRunAndroidEmbeddingVersion: androidProject.getEmbeddingVersion().toString().split('.').last,
+      if (androidEmbeddingVersion != null)
+        CustomDimensions.commandRunAndroidEmbeddingVersion: androidEmbeddingVersion,
     };
   }
 

packages/flutter_tools/lib/src/macos/cocoapod_utils.dart

diff --git a/packages/flutter_tools/lib/src/macos/cocoapod_utils.dart b/packages/flutter_tools/lib/src/macos/cocoapod_utils.dart
index 01856b7..5c673d6 100644
--- a/packages/flutter_tools/lib/src/macos/cocoapod_utils.dart
+++ b/packages/flutter_tools/lib/src/macos/cocoapod_utils.dart
@@ -36,7 +36,6 @@
   final bool didPodInstall = await cocoaPods.processPods(
     xcodeProject: xcodeProject,
     engineDir: flutterFrameworkDir(buildMode),
-    isSwift: await xcodeProject.isSwift,
     dependenciesChanged: !fingerprinter.doesFingerprintMatch(),
   );
   if (didPodInstall) {

packages/flutter_tools/lib/src/macos/cocoapods.dart

diff --git a/packages/flutter_tools/lib/src/macos/cocoapods.dart b/packages/flutter_tools/lib/src/macos/cocoapods.dart
index 8fb1dd6..ca29dee 100644
--- a/packages/flutter_tools/lib/src/macos/cocoapods.dart
+++ b/packages/flutter_tools/lib/src/macos/cocoapods.dart
@@ -138,7 +138,6 @@
     @required XcodeBasedProject xcodeProject,
     // For backward compatibility with previously created Podfile only.
     @required String engineDir,
-    bool isSwift = false,
     bool dependenciesChanged = true,
   }) async {
     if (!xcodeProject.podfile.existsSync()) {

packages/flutter_tools/lib/src/project.dart

diff --git a/packages/flutter_tools/lib/src/project.dart b/packages/flutter_tools/lib/src/project.dart
index bc9dba0..2671a03 100644
--- a/packages/flutter_tools/lib/src/project.dart
+++ b/packages/flutter_tools/lib/src/project.dart
@@ -292,9 +292,6 @@
   /// The CocoaPods 'Manifest.lock'.
   File get podManifestLock;
 
-  /// True if the host app project is using Swift.
-  Future<bool> get isSwift;
-
   /// Directory containing symlinks to pub cache plugins source generated on `pod install`.
   Directory get symlinks;
 }
@@ -410,10 +407,6 @@
     return null;
   }
 
-  @override
-  Future<bool> get isSwift async =>
-    (await buildSettings)?.containsKey('SWIFT_VERSION') ?? false;
-
   /// The build settings for the host app of this project, as a detached map.
   ///
   /// Returns null, if iOS tooling is unavailable.
@@ -820,9 +813,6 @@
   @override
   Directory get symlinks => ephemeralDirectory.childDirectory('.symlinks');
 
-  @override
-  Future<bool> get isSwift async => true;
-
   /// The file where the Xcode build will write the name of the built app.
   ///
   /// Ideally this will be replaced in the future with inspection of the Runner

packages/flutter_tools/test/commands.shard/hermetic/run_test.dart

diff --git a/packages/flutter_tools/test/commands.shard/hermetic/run_test.dart b/packages/flutter_tools/test/commands.shard/hermetic/run_test.dart
index 83d98db..9fb909c 100644
--- a/packages/flutter_tools/test/commands.shard/hermetic/run_test.dart
+++ b/packages/flutter_tools/test/commands.shard/hermetic/run_test.dart
@@ -237,6 +237,7 @@
         when(mockDevice.isLocalEmulator).thenAnswer((Invocation invocation) => Future<bool>.value(false));
         when(mockDevice.getLogReader(app: anyNamed('app'))).thenReturn(MockDeviceLogReader());
         when(mockDevice.supportsFastStart).thenReturn(true);
+        when(mockDevice.sdkNameAndVersion).thenAnswer((Invocation invocation) => Future<String>.value('iOS 13'));
         // App fails to start because we're only interested in usage
         when(mockDevice.startApp(
           any,
@@ -262,6 +263,15 @@
           (Invocation invocation) => Future<List<Device>>.value(<Device>[mockDevice])
         );
 
+        final Directory tempDir = fs.systemTempDirectory.createTempSync('flutter_run_test.');
+        tempDir.childDirectory('ios').childFile('AppDelegate.swift').createSync(recursive: true);
+        tempDir.childFile('.packages').createSync();
+        tempDir.childDirectory('lib').childFile('main.dart').createSync(recursive: true);
+        tempDir.childFile('pubspec.yaml')
+          ..createSync()
+          ..writeAsStringSync('# Hello, World');
+        fs.currentDirectory = tempDir;
+
         try {
           await createTestCommandRunner(command).run(<String>[
             'run',
@@ -281,7 +291,14 @@
         )).captured;
         expect(captures[0], 'run');
         final Map<String, String> parameters = captures[1] as Map<String, String>;
-        expect(parameters['cd4'], 'ios');
+
+        expect(parameters[cdKey(CustomDimensions.commandRunIsEmulator)], 'false');
+        expect(parameters[cdKey(CustomDimensions.commandRunTargetName)], 'ios');
+        expect(parameters[cdKey(CustomDimensions.commandRunProjectHostLanguage)], 'swift');
+        expect(parameters[cdKey(CustomDimensions.commandRunTargetOsVersion)], 'iOS 13');
+        expect(parameters[cdKey(CustomDimensions.commandRunModeName)], 'debug');
+        expect(parameters[cdKey(CustomDimensions.commandRunProjectModule)], 'false');
+        expect(parameters.containsKey(cdKey(CustomDimensions.commandRunAndroidEmbeddingVersion)), false);
       }, overrides: <Type, Generator>{
         ApplicationPackageFactory: () => mockApplicationPackageFactory,
         Artifacts: () => mockArtifacts,

packages/flutter_tools/test/general.shard/project_test.dart

diff --git a/packages/flutter_tools/test/general.shard/project_test.dart b/packages/flutter_tools/test/general.shard/project_test.dart
index 845af31..c5b6805 100644
--- a/packages/flutter_tools/test/general.shard/project_test.dart
+++ b/packages/flutter_tools/test/general.shard/project_test.dart
@@ -304,19 +304,12 @@
 
       testInMemory('default host app language', () async {
         final FlutterProject project = await someProject();
-        expect(await project.ios.isSwift, isFalse);
         expect(project.android.isKotlin, isFalse);
       });
 
-      testUsingContext('swift and kotlin host app language', () async {
+      testUsingContext('kotlin host app language', () async {
         final FlutterProject project = await someProject();
 
-        when(mockXcodeProjectInterpreter.getBuildSettings(any, any)).thenAnswer(
-          (_) {
-            return Future<Map<String, String>>.value(<String, String>{
-              'SWIFT_VERSION': '5.0',
-            });
-        });
         addAndroidGradleFile(project.directory,
           gradleFileContent: () {
             return '''
@@ -324,7 +317,6 @@
 apply plugin: 'kotlin-android'
 ''';
         });
-        expect(await project.ios.isSwift, isTrue);
         expect(project.android.isKotlin, isTrue);
       }, overrides: <Type, Generator>{
         FileSystem: () => fs,