在生产环境app的开发过程中，获取设备信息是必不可少的一步，本文详细介绍在flutter中如何判断平台是android还是ios，并使用开源库device_info获取android和ios的设备信息。

判断平台

这步很简单，导入平台Platform库就行，位置在dart:io

import 'dart:io';

然后在android studio中编辑的时候就有快捷菜单了:

判断平台只要使用如下代码：

if(Platform.isIOS){

//ios相关代码

}else if(Platform.isAndroid){

//android相关代码

}

device_info库的使用

先上图

1、添加依赖

在pubspec.yml中的dependencies下面新增节点

device_info : ^0.2.0

上图比较快：

然后点下编辑器的"Packages get"或者运行命令行：

flutter packages get

注意这里可能需要配置环境变量:

export PUB_HOSTED_URL=https://pub.flutter-io.cn

export FLUTTER_STORAGE_BASE_URL=https://storage.flutter-io.cn

2、获取信息

android版本所有属性

/// Android operating system version values derived from `android.os.Build.VERSION`.

final AndroidBuildVersion version;

/// The name of the underlying board, like "goldfish".

final String board;

/// The system bootloader version number.

final String bootloader;

/// The consumer-visible brand with which the product/hardware will be associated, if any.

final String brand;

/// The name of the industrial design.

final String device;

/// A build ID string meant for displaying to the user.

final String display;

/// A string that uniquely identifies this build.

final String fingerprint;

/// The name of the hardware (from the kernel command line or /proc).

final String hardware;

/// Hostname.

final String host;

/// Either a changelist number, or a label like "M4-rc20".

final String id;

/// The manufacturer of the product/hardware.

final String manufacturer;

/// The end-user-visible name for the end product.

final String model;

/// The name of the overall product.

final String product;

/// An ordered list of 32 bit ABIs supported by this device.

final List supported32BitAbis;

/// An ordered list of 64 bit ABIs supported by this device.

final List supported64BitAbis;

/// An ordered list of ABIs supported by this device.

final List supportedAbis;

/// Comma-separated tags describing the build, like "unsigned,debug".

final String tags;

/// The type of build, like "user" or "eng".

final String type;

/// `false` if the application is running in an emulator, `true` otherwise.

final bool isPhysicalDevice;

ios版本所有属性:

/// Device name.

final String name;

/// The name of the current operating system.

final String systemName;

/// The current operating system version.

final String systemVersion;

/// Device model.

final String model;

/// Localized name of the device model.

final String localizedModel;

/// Unique UUID value identifying the current device.

final String identifierForVendor;

/// `false` if the application is running in a simulator, `true` otherwise.

final bool isPhysicalDevice;

/// Operating system information derived from `sys/utsname.h`.

final IosUtsname utsname;

好吧，只要一行依赖就可以集成两个平台的项目代码，毫无繁琐配置，flutter真的简单。

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