[移动开发]flutter多环境打包流程

首先需要创建apk密钥：

执行命令：keytool -genkey -v -keystore /D:/key.jks -keyalg RSA -keysize 2048 -validity 10000 -alias key

根据提示输入密钥信息

输入密钥库口令:
密钥库口令太短 - 至少必须为 6 个字符
输入密钥库口令:
再次输入新口令:
您的名字与姓氏是什么?
  [Unknown]:  wanghf
您的组织单位名称是什么?
  [Unknown]:  vk
您的组织名称是什么?
  [Unknown]:  wx
您所在的城市或区域名称是什么?
  [Unknown]:  sh
您所在的省/市/自治区名称是什么?
  [Unknown]:  sh
该单位的双字母国家/地区代码是什么?
  [Unknown]:  china
CN=wanghf, OU=vk, O=wx, L=sh, ST=sh, C=china是否正确?
  [否]:  y

正在为以下对象生成 2,048 位RSA密钥对和自签名证书 (SHA256withRSA) (有效期为 10,000 天):
         CN=wanghf, OU=vk, O=wx, L=sh, ST=sh, C=china
输入 <key> 的密钥口令
        (如果和密钥库口令相同, 按回车):
再次输入新口令:
[正在存储/D:/key.jks]

创建密钥文件，名字可以随便取：

?配置密钥信息：

storePassword=12345
keyPassword=12345
keyAlias=key
storeFile=D:/sit.jks

build.gradle 配置密钥信息及打包渠道

def localProperties = new Properties()
def localPropertiesFile = rootProject.file('local.properties')
if (localPropertiesFile.exists()) {
    localPropertiesFile.withReader('UTF-8') { reader ->
        localProperties.load(reader)
    }
}

def flutterRoot = localProperties.getProperty('flutter.sdk')
if (flutterRoot == null) {
    throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
}

def flutterVersionCode = localProperties.getProperty('flutter.versionCode')
if (flutterVersionCode == null) {
    flutterVersionCode = '1'
}

def flutterVersionName = localProperties.getProperty('flutter.versionName')
if (flutterVersionName == null) {
    flutterVersionName = '1.0'
}

apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"

//新增==============
def keystorePropertiesFile = rootProject.file("key.properties")
def keystoreProperties = new Properties()
keystoreProperties.load(new FileInputStream(keystorePropertiesFile))


def sitKeystorePropertiesFile = rootProject.file("sit.properties")
def sitKeystoreProperties = new Properties()
sitKeystoreProperties.load(new FileInputStream(sitKeystorePropertiesFile))

//============================================

android {
    compileSdkVersion 30

    sourceSets {
        main.java.srcDirs += 'src/main/kotlin'
    }

    defaultConfig {
        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
        applicationId "com.example.flutter_app5"
        minSdkVersion 16
        targetSdkVersion 30
        versionCode flutterVersionCode.toInteger()
        versionName flutterVersionName
    }

//新增==========================

    signingConfigs {

        sit {
            keyAlias sitKeystoreProperties['keyAlias']
            keyPassword sitKeystoreProperties['keyPassword']
            storeFile file(sitKeystoreProperties['storeFile'])
            storePassword sitKeystoreProperties['storePassword']
        }


        release {
            keyAlias keystoreProperties['keyAlias']
            keyPassword keystoreProperties['keyPassword']
            storeFile file(keystoreProperties['storeFile'])
            storePassword keystoreProperties['storePassword']
        }
    }
    buildTypes {
        debug {
            minifyEnabled false
            signingConfig signingConfigs.sit
            ndk {
                abiFilters "armeabi","armeabi-v7a","arm64-v8a", "x86"
            }
        }

        release {
            minifyEnabled true
            zipAlignEnabled true
            shrinkResources true
            signingConfig signingConfigs.release
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
            ndk {
                abiFilters "armeabi","armeabi-v7a","arm64-v8a", "x86"
            }
        }
    }


    flavorDimensions "flutter_app5"
    productFlavors {
        sit{
            dimension "flutter_app5"
            applicationId "${defaultConfig.applicationId}.sit"
            manifestPlaceholders = [
                    app_name: "flutter_sit"
            ]
        }

        uat{
            dimension "flutter_app5"
            applicationId "${defaultConfig.applicationId}.uat"
            manifestPlaceholders = [
                    app_name: "flutter_uat"
            ]
        }


        production{
            dimension "flutter_app5"
            applicationId "${defaultConfig.applicationId}.production"
            manifestPlaceholders = [
                    app_name: "flutter_production"
            ]
        }
    }
}
//==============

flutter {
    source '../..'
}

dependencies {
    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
}

至此渠道已经完成

但是需求需要不同环境引入不同的URL，我们可以创建多个main.dart

?在我们的main文件中不同的环境配置不同的URL,所以我们需要一个枚举类

enum APPChannel {
  MIT,
  SIT,
  UAT,
  PRO,
}

class Channel {
  static APPChannel currentChannel;

  static String get baseURL {
    switch (currentChannel) {
      case APPChannel.MIT:
        return 'https://mit.111.com/';
      case APPChannel.SIT:
        return 'https://sit.222.com/';
      case APPChannel.UAT:
        return 'https://uat.333.com/';
      case APPChannel.PRO:
        return 'https://pro.444.com/';
      default:
        return 'https://sit.111.com/';
    }
  }
  static String get baseAuthURL {
    switch (currentChannel) {
      case APPChannel.MIT:
        return 'https://mitauth.111.com/';
      case APPChannel.SIT:
        return 'https://sitauth.222.com/';
      case APPChannel.UAT:
        return 'https://uatauth.333.com/';
      case APPChannel.PRO:
        return 'https://proauth.444.com/';
      default:
        return 'https://sitauth.111.com/';
    }
  }
}

在main函数中配置读取

  Channel.currentChannel = APPChannel.MIT;

?不同环境配置不同的取值：

?在API文件获取对应的URL

import 'package:flutter_app2/channel/channel.dart';

class APIs{

   static final String API_SERVER_URL = Channel.baseURL;
   static final String API_SERVER_URL_AUTH = Channel.baseAuthURL;


    static const String QUERYVERSION = "queryVersion";
    static const String LOGIN = "login";
    static const String CHANGE_OBJECT = "changeObject";
}

至此配置完成

命令运行不同环境的包

flutter build apk --flavor uat --debug -t lib/main_uat.dart

--flavor dev指定好渠道

--debug 指定好环境

-t lib/main_uat.dart? 指定好入口文件

至此就可以根据需求打相应的包了

参考文档：打包dev环境命令_解决Flutter在android端多渠道打包问题_蒙氏宝宝的博客-CSDN博客