# unique_device_id

**Repository Path**: huhansome/unique_device_id

## Basic Information

- **Project Name**: unique_device_id
- **Description**: flutter插件，获取设备唯一标识，支持安卓iOS
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2021-09-16
- **Last Updated**: 2021-09-16

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# unique_device_id

A flutter plugin that can get a unique deviceId 

## Use this package as a library
Depend on it<br/>
Run this command:

With Flutter:

```
flutter pub add flutter_unique_device_id 

```

This will add a line like this to your package's pubspec.yaml (and run an implicit dart pub get):

```
dependencies:
  flutter_unique_device_id: ^0.0.1
```
Import it
Now in your Dart code, you can use:

```
import 'package:flutter_unique_device_id/flutter_unique_device_id.dart';
```

## About android
I know there isn't any 'perfect' way of getting a unique ID without using permissions; however, sometimes we only really need to track the device installation. When it comes to creating a unique ID, we can create a 'pseudo unique id' based solely on information that the Android API gives us without using extra permissions. This way, we can show the user respect and try to offer a good user experience as well.

how does it work?<br>

```Java
	private String getUniquePsuedoID() {
        // If all else fails, if the user does have lower than API 9 (lower
        // than Gingerbread), has reset their device or 'Secure.ANDROID_ID'
        // returns 'null', then simply the ID returned will be solely based
        // off their Android device information. This is where the collisions
        // can happen.
        // Thanks http://www.pocketmagic.net/?p=1662!
        // Try not to use DISPLAY, HOST or ID - these items could change.
        // If there are collisions, there will be overlapping data
        String m_szDevIDShort = "35" + (Build.BOARD.length() % 10) + (Build.BRAND.length() % 10) + (Build.CPU_ABI.length() % 10) + (Build.DEVICE.length() % 10) + (Build.MANUFACTURER.length() % 10) + (Build.MODEL.length() % 10) + (Build.PRODUCT.length() % 10);

        // Thanks to @Roman SL!
        // https://stackoverflow.com/a/4789483/950427
        // Only devices with API >= 9 have android.os.Build.SERIAL
        // http://developer.android.com/reference/android/os/Build.html#SERIAL
        // If a user upgrades software or roots their device, there will be a duplicate entry
        String serial = null;
        try {
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
                serial = android.os.Build.getSerial();
            } else {
                serial = Build.SERIAL;
            }
            // Go ahead and return the serial for api => 9
            return new UUID(m_szDevIDShort.hashCode(), serial.hashCode()).toString();
        } catch (Exception exception) {
            // String needs to be initialized
            final String androidId = "" + android.provider.Settings.Secure.getString(_flutterPluginBinding.getApplicationContext().getContentResolver(), android.provider.Settings.Secure.ANDROID_ID);
            serial = androidId;
        }

        // if Build.SERIAL get successfuly, the 'id' is unique very likely, if not, we use androidId to guarante 'id' to be unique as possible
        // without any permissions


        // Thanks @Joe!
        // https://stackoverflow.com/a/2853253/950427
        // Finally, combine the values we have found by using the UUID class to create a unique identifier
        return new UUID(m_szDevIDShort.hashCode(), serial.hashCode()).toString();
    }
```

## About ios
CFUUID + KeyChain

## Getting Started

This project is a starting point for a Flutter
[plug-in package](https://flutter.dev/developing-packages/),
a specialized package that includes platform-specific implementation code for
Android and/or iOS.

For help getting started with Flutter, view our
[online documentation](https://flutter.dev/docs), which offers tutorials,
samples, guidance on mobile development, and a full API reference.

## see also
unique_device_id also support weex, see [unique_device_id for weex](https://ext.dcloud.net.cn/plugin?id=2916)

## Thanks
- [is-there-a-unique-android-device-id](https://stackoverflow.com/questions/2785485/is-there-a-unique-android-device-id)
- [FCUUID](https://github.com/fabiocaccamo/FCUUID)
- [UICKeyChainStore](https://github.com/kishikawakatsumi/UICKeyChainStore)