feat(package_info_plus): add install time

packages/package_info_plus/package_info_plus/android/src/main/kotlin/dev/fluttercommunity/plus/packageinfo/PackageInfoPlugin.kt

@@ -39,6 +39,7 @@ class PackageInfoPlugin : MethodCallHandler, FlutterPlugin {
                 val buildSignature = getBuildSignature(packageManager)
 
                 val installerPackage = getInstallerPackageName()
+                val installTimeMillis = getInstallTimeMillis()
 
                 val infoMap = HashMap<String, String>()
                 infoMap.apply {
@@ -48,6 +49,7 @@ class PackageInfoPlugin : MethodCallHandler, FlutterPlugin {
                     put("buildNumber", getLongVersionCode(info).toString())
                     if (buildSignature != null) put("buildSignature", buildSignature)
                     if (installerPackage != null) put("installerStore", installerPackage)
+                    if (installTimeMillis != null) put("installTime", installTimeMillis.toString())
                 }.also { resultingMap ->
                     result.success(resultingMap)
                 }
@@ -74,6 +76,22 @@ class PackageInfoPlugin : MethodCallHandler, FlutterPlugin {
         }
     }
 
+    private fun getInstallTimeMillis(): Long? {
+        return try {
+            val packageManager = applicationContext!!.packageManager
+            val packageName = applicationContext!!.packageName
+            val packageInfo = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+                packageManager.getPackageInfo(packageName, PackageManager.PackageInfoFlags.of(0))
+            } else {
+                packageManager.getPackageInfo(packageName, 0)
+            }
+
+            packageInfo.firstInstallTime
+        } catch (e: PackageManager.NameNotFoundException) {
+            null
+        }
+    }
+
     @Suppress("deprecation")
     private fun getLongVersionCode(info: PackageInfo): Long {
         return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {

packages/package_info_plus/package_info_plus/example/integration_test/package_info_plus_test.dart

@@ -16,6 +16,8 @@ const android14SDK = 34;
 void main() {
   IntegrationTestWidgetsFlutterBinding.ensureInitialized();
 
+  final testStartTime = DateTime.now();
+
   testWidgets('fromPlatform', (WidgetTester tester) async {
     final info = await PackageInfo.fromPlatform();
     // These tests are based on the example app. The tests should be updated if any related info changes.
@@ -26,6 +28,7 @@ void main() {
       expect(info.packageName, 'package_info_plus_example');
       expect(info.version, '1.2.3');
       expect(info.installerStore, null);
+      expect(info.installTime, null);
     } else {
       if (Platform.isAndroid) {
         final androidVersionInfo = await DeviceInfoPlugin().androidInfo;
@@ -41,33 +44,73 @@ void main() {
         } else {
           expect(info.installerStore, null);
         }
+        expect(
+          info.installTime,
+          isA<DateTime>().having(
+            (d) => d.difference(DateTime.now()).inMinutes,
+            'Was just installed',
+            lessThanOrEqualTo(1),
+          ),
+        );
       } else if (Platform.isIOS) {
         expect(info.appName, 'Package Info Plus Example');
         expect(info.buildNumber, '4');
         expect(info.buildSignature, isEmpty);
         expect(info.packageName, 'io.flutter.plugins.packageInfoExample');
         expect(info.version, '1.2.3');
         expect(info.installerStore, 'com.apple.simulator');
+        expect(
+          info.installTime,
+          isA<DateTime>().having(
+            (d) => d.difference(DateTime.now()).inMinutes,
+            'Was just installed',
+            lessThanOrEqualTo(1),
+          ),
+        );
       } else if (Platform.isMacOS) {
         expect(info.appName, 'Package Info Plus Example');
         expect(info.buildNumber, '4');
         expect(info.buildSignature, isEmpty);
         expect(info.packageName, 'io.flutter.plugins.packageInfoExample');
         expect(info.version, '1.2.3');
         expect(info.installerStore, null);
+        expect(
+          info.installTime,
+          isA<DateTime>().having(
+            (d) => d.difference(DateTime.now()).inMinutes,
+            'Was just installed',
+            lessThanOrEqualTo(1),
+          ),
+        );
       } else if (Platform.isLinux) {
         expect(info.appName, 'package_info_plus_example');
         expect(info.buildNumber, '4');
         expect(info.buildSignature, isEmpty);
         expect(info.packageName, 'package_info_plus_example');
         expect(info.version, '1.2.3');
+        expect(
+          info.installTime,
+          isA<DateTime>().having(
+            (d) => d.difference(DateTime.now()).inMinutes,
+            'Was just installed',
+            lessThanOrEqualTo(1),
+          ),
+        );
       } else if (Platform.isWindows) {
         expect(info.appName, 'example');
         expect(info.buildNumber, '4');
         expect(info.buildSignature, isEmpty);
         expect(info.packageName, 'example');
         expect(info.version, '1.2.3');
         expect(info.installerStore, null);
+        expect(
+          info.installTime,
+          isA<DateTime>().having(
+            (d) => d.difference(DateTime.now()).inMinutes,
+            'Was just installed',
+            lessThanOrEqualTo(1),
+          ),
+        );
       } else {
         throw (UnsupportedError('platform not supported'));
       }
@@ -83,7 +126,16 @@ void main() {
       expect(find.text('4'), findsOneWidget);
       expect(find.text('Not set'), findsOneWidget);
       expect(find.text('not available'), findsOneWidget);
+      expect(find.text('Install time not available'), findsOneWidget);
     } else {
+      final expectedInstallTimeIso = testStartTime.toIso8601String();
+      final installTimeRegex = RegExp(
+        expectedInstallTimeIso.replaceAll(
+          RegExp(r'\d:\d\d\..+$'),
+          r'.+$',
+        ),
+      );
+
       if (Platform.isAndroid) {
         final androidVersionInfo = await DeviceInfoPlugin().androidInfo;
 
@@ -101,6 +153,7 @@ void main() {
         } else {
           expect(find.text('not available'), findsOneWidget);
         }
+        expect(find.textContaining(installTimeRegex), findsOneWidget);
       } else if (Platform.isIOS) {
         expect(find.text('Package Info Plus Example'), findsOneWidget);
         expect(find.text('4'), findsOneWidget);
@@ -109,6 +162,7 @@ void main() {
         expect(find.text('1.2.3'), findsOneWidget);
         expect(find.text('Not set'), findsOneWidget);
         expect(find.text('com.apple.simulator'), findsOneWidget);
+        expect(find.textContaining(installTimeRegex), findsOneWidget);
       } else if (Platform.isMacOS) {
         expect(find.text('Package Info Plus Example'), findsOneWidget);
         expect(find.text('4'), findsOneWidget);
@@ -117,17 +171,20 @@ void main() {
         expect(find.text('1.2.3'), findsOneWidget);
         expect(find.text('Not set'), findsOneWidget);
         expect(find.text('not available'), findsOneWidget);
+        expect(find.textContaining(installTimeRegex), findsOneWidget);
       } else if (Platform.isLinux) {
         expect(find.text('package_info_plus_example'), findsNWidgets(2));
         expect(find.text('1.2.3'), findsOneWidget);
         expect(find.text('4'), findsOneWidget);
         expect(find.text('Not set'), findsOneWidget);
+        expect(find.textContaining(installTimeRegex), findsOneWidget);
       } else if (Platform.isWindows) {
         expect(find.text('example'), findsNWidgets(2));
         expect(find.text('1.2.3'), findsOneWidget);
         expect(find.text('4'), findsOneWidget);
         expect(find.text('Not set'), findsOneWidget);
         expect(find.text('not available'), findsOneWidget);
+        expect(find.textContaining(installTimeRegex), findsOneWidget);
       } else {
         throw (UnsupportedError('platform not supported'));
       }

packages/package_info_plus/package_info_plus/example/lib/main.dart

@@ -84,6 +84,11 @@ class _MyHomePageState extends State<MyHomePage> {
             'Installer store',
             _packageInfo.installerStore ?? 'not available',
           ),
+          _infoTile(
+            'Install time',
+            _packageInfo.installTime?.toIso8601String() ??
+                'Install time not available',
+          ),
         ],
       ),
     );

packages/package_info_plus/package_info_plus/example/pubspec.yaml

@@ -1,10 +1,10 @@
 name: package_info_plus_example
 description: Demonstrates how to use the package_info_plus plugin.
 version: 1.2.3+4
-publish_to: 'none'
+publish_to: "none"
 
 environment:
-  sdk: '>=2.18.0 <4.0.0'
+  sdk: ">=2.18.0 <4.0.0"
 
 dependencies:
   clock: ^1.1.1

packages/package_info_plus/package_info_plus/ios/package_info_plus/Sources/package_info_plus/FPPPackageInfoPlusPlugin.m

@@ -26,6 +26,12 @@ - (void)handleMethodCall:(FlutterMethodCall *)call
             ? @"com.apple.testflight"
             : @"com.apple";
 
+    NSURL* urlToDocumentsFolder = [[[NSFileManager defaultManager] URLsForDirectory:NSDocumentDirectory inDomains:NSUserDomainMask] lastObject];
+    __autoreleasing NSError *error;
+    NSDate *installDate = [[[NSFileManager defaultManager] attributesOfItemAtPath:urlToDocumentsFolder.path error:&error] objectForKey:NSFileCreationDate];
+    NSNumber *installTimeMillis = installDate ? @((long long)([installDate timeIntervalSince1970] * 1000)) : [NSNull null];
+
+
     result(@{
       @"appName" : [[NSBundle mainBundle]
           objectForInfoDictionaryKey:@"CFBundleDisplayName"]
@@ -39,8 +45,10 @@ - (void)handleMethodCall:(FlutterMethodCall *)call
       @"buildNumber" : [[NSBundle mainBundle]
           objectForInfoDictionaryKey:@"CFBundleVersion"]
           ?: [NSNull null],
-      @"installerStore" : installerStore
+      @"installerStore" : installerStore,
+      @"installTime" : installTimeMillis ? [installTimeMillis stringValue] : [NSNull null]
     });
+
   } else {
     result(FlutterMethodNotImplemented);
   }

packages/package_info_plus/package_info_plus/lib/package_info_plus.dart

@@ -27,6 +27,7 @@ class PackageInfo {
     required this.buildNumber,
     this.buildSignature = '',
     this.installerStore,
+    this.installTime,
   });
 
   static PackageInfo? _fromPlatform;
@@ -88,6 +89,7 @@ class PackageInfo {
       buildNumber: platformData.buildNumber,
       buildSignature: platformData.buildSignature,
       installerStore: platformData.installerStore,
+      installTime: platformData.installTime,
     );
     return _fromPlatform!;
   }
@@ -147,6 +149,16 @@ class PackageInfo {
   /// The installer store. Indicates through which store this application was installed.
   final String? installerStore;
 
+  /// The time when the application was installed.
+  ///
+  /// - On Android, returns `PackageManager.firstInstallTime`
+  /// - On iOS and macOS, return the creation date of the app default `NSDocumentDirectory`
+  /// - On Windows and Linux, returns the creation date of the app executable.
+  ///   If the creation date is not available, returns the last modified date of the app executable.
+  ///   If the last modified date is not available, returns `null`.
+  /// - On web, returns `null`.
+  final DateTime? installTime;
+
   /// Initializes the application metadata with mock values for testing.
   ///
   /// If the singleton instance has been initialized already, it is overwritten.
@@ -158,6 +170,7 @@ class PackageInfo {
     required String buildNumber,
     required String buildSignature,
     String? installerStore,
+    DateTime? installTime,
   }) {
     _fromPlatform = PackageInfo(
       appName: appName,
@@ -166,6 +179,7 @@ class PackageInfo {
       buildNumber: buildNumber,
       buildSignature: buildSignature,
       installerStore: installerStore,
+      installTime: installTime,
     );
   }
 
@@ -180,7 +194,8 @@ class PackageInfo {
           version == other.version &&
           buildNumber == other.buildNumber &&
           buildSignature == other.buildSignature &&
-          installerStore == other.installerStore;
+          installerStore == other.installerStore &&
+          installTime == other.installTime;
 
   /// Overwrite hashCode for value equality
   @override
@@ -190,11 +205,12 @@ class PackageInfo {
       version.hashCode ^
       buildNumber.hashCode ^
       buildSignature.hashCode ^
-      installerStore.hashCode;
+      installerStore.hashCode ^
+      installTime.hashCode;
 
   @override
   String toString() {
-    return 'PackageInfo(appName: $appName, buildNumber: $buildNumber, packageName: $packageName, version: $version, buildSignature: $buildSignature, installerStore: $installerStore)';
+    return 'PackageInfo(appName: $appName, buildNumber: $buildNumber, packageName: $packageName, version: $version, buildSignature: $buildSignature, installerStore: $installerStore, installTime: $installTime)';
   }
 
   Map<String, dynamic> _toMap() {
@@ -205,6 +221,7 @@ class PackageInfo {
       'version': version,
       if (buildSignature.isNotEmpty) 'buildSignature': buildSignature,
       if (installerStore?.isNotEmpty ?? false) 'installerStore': installerStore,
+      if (installTime != null) 'installTime': installTime
     };
   }
 

packages/package_info_plus/package_info_plus/lib/src/file_attribute.dart

@@ -0,0 +1,83 @@
+import 'dart:ffi';
+import 'dart:io';
+
+import 'package:ffi/ffi.dart';
+import 'package:win32/win32.dart';
+
+base class FILEATTRIBUTEDATA extends Struct {
+  @DWORD()
+  external int dwFileAttributes;
+
+  external FILETIME ftCreationTime;
+
+  external FILETIME ftLastAccessTime;
+
+  external FILETIME ftLastWriteTime;
+
+  @DWORD()
+  external int nFileSizeHigh;
+
+  @DWORD()
+  external int nFileSizeLow;
+}
+
+class FileAttributes {
+  final String filePath;
+
+  late final DateTime? creationTime;
+  late final DateTime? lastWriteTime;
+
+  FileAttributes(this.filePath) {
+    final (:creationTime, :lastWriteTime) =
+        getFileCreationAndLastWriteTime(filePath);
+
+    this.creationTime = creationTime;
+    this.lastWriteTime = lastWriteTime;
+  }
+
+  static ({
+    DateTime? creationTime,
+    DateTime? lastWriteTime,
+  }) getFileCreationAndLastWriteTime(String filePath) {
+    if (!File(filePath).existsSync()) {
+      throw ArgumentError.value(filePath, 'filePath', 'File not present');
+    }
+
+    final lptstrFilename = TEXT(filePath);
+    final lpFileInformation = calloc<FILEATTRIBUTEDATA>();
+
+    try {
+      if (GetFileAttributesEx(lptstrFilename, 0, lpFileInformation) == 0) {
+        throw WindowsException(HRESULT_FROM_WIN32(GetLastError()));
+      }
+
+      final FILEATTRIBUTEDATA fileInformation = lpFileInformation.ref;
+
+      return (
+        creationTime: fileTimeToDartDateTime(
+          fileInformation.ftCreationTime,
+        ),
+        lastWriteTime: fileTimeToDartDateTime(
+          fileInformation.ftLastWriteTime,
+        ),
+      );
+    } finally {
+      free(lptstrFilename);
+      free(lpFileInformation);
+    }
+  }
+
+  static DateTime? fileTimeToDartDateTime(FILETIME? fileTime) {
+    if (fileTime == null) return null;
+
+    final high = fileTime.dwHighDateTime;
+    final low = fileTime.dwLowDateTime;
+
+    final fileTime64 = (high << 32) + low;
+
+    final windowsTimeMillis = fileTime64 ~/ 10000;
+    final unixTimeMillis = windowsTimeMillis - 11644473600000;
+
+    return DateTime.fromMillisecondsSinceEpoch(unixTimeMillis);
+  }
+}