Update gradle and kotlin plugin

platform_device_id/android/build.gradle

@@ -1,37 +1,49 @@
+import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
+
 group 'com.di1shuai.platform_device_id'
 version '1.0-SNAPSHOT'
 
 buildscript {
-    ext.kotlin_version = '1.3.50'
+    ext.kotlin_version = '1.9.20'
     repositories {
         google()
-        jcenter()
+        mavenCentral()
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.5.0'
+        classpath 'com.android.tools.build:gradle:8.4.0'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
     }
 }
 
 rootProject.allprojects {
     repositories {
         google()
-        jcenter()
+        mavenCentral()
     }
 }
 
 apply plugin: 'com.android.library'
 apply plugin: 'kotlin-android'
 
 android {
-    compileSdkVersion 28
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+    kotlinOptions {
+        jvmTarget = '1.8'
+    }
+
+    namespace "com.di1shuai.platform_device_id"
+    compileSdk 34
 
     sourceSets {
         main.java.srcDirs += 'src/main/kotlin'
     }
     defaultConfig {
-        minSdkVersion 16
+        minSdkVersion 24
     }
     lintOptions {
         disable 'InvalidPackage'
@@ -40,4 +52,5 @@ android {
 
 dependencies {
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+    coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:1.2.2'
 }

platform_device_id/android/gradle.properties

@@ -1,4 +1,3 @@
 org.gradle.jvmargs=-Xmx1536M
-android.enableR8=true
 android.useAndroidX=true
 android.enableJetifier=true

platform_device_id/android/gradle/wrapper/gradle-wrapper.properties

@@ -2,4 +2,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-5.6.2-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.6-all.zip

platform_device_id/example/linux/flutter/generated_plugins.cmake

@@ -6,6 +6,9 @@ list(APPEND FLUTTER_PLUGIN_LIST
   platform_device_id_linux
 )
 
+list(APPEND FLUTTER_FFI_PLUGIN_LIST
+)
+
 set(PLUGIN_BUNDLED_LIBRARIES)
 
 foreach(plugin ${FLUTTER_PLUGIN_LIST})
@@ -14,3 +17,8 @@ foreach(plugin ${FLUTTER_PLUGIN_LIST})
   list(APPEND PLUGIN_BUNDLED_LIBRARIES $<TARGET_FILE:${plugin}_plugin>)
   list(APPEND PLUGIN_BUNDLED_LIBRARIES ${${plugin}_bundled_libraries})
 endforeach(plugin)
+
+foreach(ffi_plugin ${FLUTTER_FFI_PLUGIN_LIST})
+  add_subdirectory(flutter/ephemeral/.plugin_symlinks/${ffi_plugin}/linux plugins/${ffi_plugin})
+  list(APPEND PLUGIN_BUNDLED_LIBRARIES ${${ffi_plugin}_bundled_libraries})
+endforeach(ffi_plugin)

platform_device_id/example/windows/flutter/generated_plugin_registrant.h

@@ -2,6 +2,8 @@
 //  Generated file. Do not edit.
 //
 
+// clang-format off
+
 #ifndef GENERATED_PLUGIN_REGISTRANT_
 #define GENERATED_PLUGIN_REGISTRANT_
 

platform_device_id/example/windows/flutter/generated_plugins.cmake

@@ -6,6 +6,9 @@ list(APPEND FLUTTER_PLUGIN_LIST
   platform_device_id_windows
 )
 
+list(APPEND FLUTTER_FFI_PLUGIN_LIST
+)
+
 set(PLUGIN_BUNDLED_LIBRARIES)
 
 foreach(plugin ${FLUTTER_PLUGIN_LIST})
@@ -14,3 +17,8 @@ foreach(plugin ${FLUTTER_PLUGIN_LIST})
   list(APPEND PLUGIN_BUNDLED_LIBRARIES $<TARGET_FILE:${plugin}_plugin>)
   list(APPEND PLUGIN_BUNDLED_LIBRARIES ${${plugin}_bundled_libraries})
 endforeach(plugin)
+
+foreach(ffi_plugin ${FLUTTER_FFI_PLUGIN_LIST})
+  add_subdirectory(flutter/ephemeral/.plugin_symlinks/${ffi_plugin}/windows plugins/${ffi_plugin})
+  list(APPEND PLUGIN_BUNDLED_LIBRARIES ${${ffi_plugin}_bundled_libraries})
+endforeach(ffi_plugin)

platform_device_id/lib/platform_device_id.dart

@@ -1,33 +1,98 @@
 import 'dart:async';
 import 'dart:io';
+import 'package:device_info_plus/device_info_plus.dart';
 import 'package:flutter/services.dart';
-import 'package:device_info/device_info.dart';
 import 'package:platform_device_id_platform_interface/platform_device_id_platform_interface.dart';
 import 'package:flutter/foundation.dart' show kIsWeb;
+import 'package:flutter_udid/flutter_udid.dart';
+import 'package:shared_preferences/shared_preferences.dart';
 
 /// Provides device id information.
 class PlatformDeviceId {
   /// Provides device and operating system information.
   static final DeviceInfoPlugin deviceInfoPlugin = DeviceInfoPlugin();
+
+  /// Key for storing the generated device ID in SharedPreferences
+  static const String _deviceIdKey = 'platform_device_id_key';
 
-  /// Information derived from `android`-`androidId` or `ios`-`identifierForVendor`
+  /// Information derived from `android`-`flutter_udid` or `ios`-`identifierForVendor`
+  /// Falls back to SharedPreferences for persistence
   static Future<String?> get getDeviceId async {
     String? deviceId;
     try {
       if (kIsWeb) {
         deviceId = await PlatformDeviceIdPlatform.instance.getDeviceId();
       } else if (Platform.isAndroid) {
-        AndroidDeviceInfo androidInfo = await deviceInfoPlugin.androidInfo;
-        deviceId = androidInfo.androidId;
+        // Use flutter_udid directly for Android instead of androidInfo.id
+        try {
+          deviceId = await FlutterUdid.udid;
+        } catch (e) {
+          print('Error getting Android UDID: $e');
+          deviceId = null; // Will trigger the fallback logic below
+        }
       } else if (Platform.isIOS) {
         IosDeviceInfo iosInfo = await deviceInfoPlugin.iosInfo;
         deviceId = iosInfo.identifierForVendor;
       } else {
         deviceId = await PlatformDeviceIdPlatform.instance.getDeviceId();
       }
+
+      // If deviceId is null, empty, or consists only of whitespace, use fallback mechanisms
+      if (deviceId == null || deviceId.trim().isEmpty) {
+        // For non-Android platforms, try flutter_udid as first fallback
+        if (!Platform.isAndroid) {
+          try {
+            deviceId = await FlutterUdid.udid;
+          } catch (e) {
+            print('Error getting UDID: $e');
+          }
+        }
+
+        // If still empty, check SharedPreferences for a previously stored ID
+        if (deviceId == null || deviceId.trim().isEmpty) {
+          final prefs = await SharedPreferences.getInstance();
+          deviceId = prefs.getString(_deviceIdKey);
+
+          // If no ID in SharedPreferences, generate one using flutter_udid's consistentUdid
+          // and store it for future use
+          if (deviceId == null || deviceId.trim().isEmpty) {
+            try {
+              deviceId = await FlutterUdid.consistentUdid;
+              // Store the generated ID for future use
+              await prefs.setString(_deviceIdKey, deviceId ?? '');
+            } catch (e) {
+              print('Error getting consistent UDID: $e');
+              // If all else fails, return an empty string
+              deviceId = '';
+            }
+          }
+        } else {
+          // Store the flutter_udid value in SharedPreferences for future use
+          final prefs = await SharedPreferences.getInstance();
+          await prefs.setString(_deviceIdKey, deviceId);
+        }
+      }
     } on PlatformException {
-      deviceId = '';
+      // Try flutter_udid as fallback for platform exception
+      try {
+        deviceId = await FlutterUdid.udid;
+      } catch (e) {
+        // If flutter_udid also fails, try to get from SharedPreferences
+        final prefs = await SharedPreferences.getInstance();
+        deviceId = prefs.getString(_deviceIdKey);
+
+        // If still no ID, generate one
+        if (deviceId == null || deviceId.trim().isEmpty) {
+          try {
+            deviceId = await FlutterUdid.consistentUdid;
+            await prefs.setString(_deviceIdKey, deviceId ?? '');
+          } catch (e) {
+            deviceId = '';
+          }
+        }
+      }
     }
+
     return deviceId;
   }
 }

platform_device_id/pubspec.yaml

@@ -15,7 +15,9 @@ dependencies:
   platform_device_id_linux: ^1.0.0
   platform_device_id_web: ^1.0.0
   platform_device_id_windows: ^1.0.0
-  device_info: ^2.0.0
+  device_info_plus: ^10.1.0
+  flutter_udid: ^2.0.1
+  shared_preferences: ^2.2.2
 
 dev_dependencies:
   flutter_test: