packages/device_info/device_info/lib/device_info.dart

// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

import 'dart:async';
import 'package:device_info_platform_interface/device_info_platform_interface.dart';

export 'package:device_info_platform_interface/device_info_platform_interface.dart'
    show AndroidBuildVersion, AndroidDeviceInfo, IosDeviceInfo, IosUtsname;

/// Provides device and operating system information.
class DeviceInfoPlugin {
  /// No work is done when instantiating the plugin. It's safe to call this
  /// repeatedly or in performance-sensitive blocks.
  DeviceInfoPlugin();

  /// This information does not change from call to call. Cache it.
  AndroidDeviceInfo _cachedAndroidDeviceInfo;

  /// Information derived from `android.os.Build`.
  ///
  /// See: https://developer.android.com/reference/android/os/Build.html
  Future<AndroidDeviceInfo> get androidInfo async =>
      _cachedAndroidDeviceInfo ??=
          await DeviceInfoPlatform.instance.androidInfo();

  /// This information does not change from call to call. Cache it.
  IosDeviceInfo _cachedIosDeviceInfo;

  /// Information derived from `UIDevice`.
  ///
  /// See: https://developer.apple.com/documentation/uikit/uidevice
  Future<IosDeviceInfo> get iosInfo async =>
      _cachedIosDeviceInfo ??= await DeviceInfoPlatform.instance.iosInfo();
}