flutter pub add flutter_udid根據套件公開資料產生的選型評估，僅供參考。
flutter_udid 是一個 Flutter 插件，可在 Android、iOS、macOS、Windows 和 Linux 上提供跨應用重裝的持久性唯一設備識別碼（UDID）。它安全地生成並儲存與設備綁定的一致 ID，有助於在不依賴暫時或易失性識別碼的情況下追蹤使用者設備。該插件利用平台特定機制確保可靠性與隱私合規性。在需要長期設備識別的場景中特別有用，例如授權管理、分析或防詐欺系統。原始碼公開托管於 GitHub 上，以確保透明度與可客製化。
以下為關聯原始碼儲存庫的 README 原文快照，最新內容請造訪原始碼儲存庫。
Plugin to retrieve a persistent UDID across app reinstalls on iOS, Android, Mac, Windows & Linux.
import 'package:flutter_udid/flutter_udid.dart';
String udid = await FlutterUdid.udid;
This provides an UDID using the format of the corresponding platform.
| Platform | Format | Source |
|---|---|---|
| iOS | 7946DA4E-8429-423C-B405-B3FC77914E3E |
identifierForVendor, saved to Keychain for persistence |
| Android | 8af8770a27cfd182 |
Settings.Secure.ANDROID_ID |
| Mac | 707E990C-D002-520B-ABA6-4216C6D514BF |
kIOPlatformUUIDKey |
| Windows | 99A4D301-53F5-11CB-8CA0-9CA39A9E1F01 |
BIOS UUID |
| Linux | 1124435e065241dcae2241e9caab9a6c |
Machine ID |
On iOS, the UDID is stored in Keychain with
kSecAttrAccessibleAfterFirstUnlockThisDeviceOnly. This means it is available
only after the user has unlocked the device once after reboot, including later
background launches while the device is locked. Before the first unlock after
reboot, requesting the UDID throws a PlatformException.
To get a consistent formatting on all platforms use:
import 'package:flutter_udid/flutter_udid.dart';
String udid = await FlutterUdid.consistentUdid;
This will result in an UDID of the following format:
984725b6c4f55963cc52fca0f943f9a8060b1c71900d542c79669b6dc718a64b
The UDID can change after a factory reset!
Additionally, if a device has been updated to Android 8.0 through an OTA and the app is reinstalled, the UDID may change as well due to security changes in Android 8.0.
On rooted and jailbroken devices the ID can be changed, so please take this into account. However, it should not be possible to identify as a different device through random guessing because of the complexity of the ID.
Furthermore, the UDID may also change if there is a change in the app's signing signature, for both iOS and Android. Ensure that you always use the same digital signature to sign your app.
For help getting started with Flutter, view the online documentation.
For help on editing plugin code, view the documentation.
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^3.0.0