m8ty_device_info

Flutter package that provides device information including device IDs, user agents, screen resolution, and package info across all platforms (Android, iOS, Web, macOS, Windows, Linux).

Initialization

Always call initialize() before using any other method:

import 'package:m8ty_device_info/m8ty_device_info.dart';

await M8tyDeviceInfo.initialize();

API Surface

Method	Description
`getDeviceId()`	Persistent device ID (generated once, stored in SharedPreferences)
`getUserAgent()`	Platform-specific user agent string
`getPackageInfo()`	App name, version, build number
`getSystemDetails()`	Combined system details map
`getScreenResolution()`	Screen resolution as `Size`
`getAndroidSdkInt()`	Android SDK version (null on non-Android)

Usage

final deviceInfo = M8tyDeviceInfo.instance;

// Persistent device ID (generated once, stored in SharedPreferences)
final deviceId = await deviceInfo.getDeviceId();

// Platform-specific user agent string
final userAgent = await deviceInfo.getUserAgent();

// Package info (app name, version, build number)
final packageInfo = await deviceInfo.getPackageInfo();

// Combined system details map
final details = await deviceInfo.getSystemDetails();

// Screen resolution
final size = deviceInfo.getScreenResolution();

// Android SDK version (null on non-Android)
final sdkInt = await deviceInfo.getAndroidSdkInt();

Key Rules

Use M8tyDeviceInfo.instance — never construct it directly.
Results for getDeviceId() and getUserAgent() are cached in memory after the first call.
getDeviceId() generates a UUID-based 16-character ID on first use and persists it via SharedPreferences.
Use M8tyDeviceInfo.clearCache() only in tests or when device info may have changed.

03 June 2026