《dart笔记》

摘要
一些示例说明

多环境打包

1. 创建多个main配置config写入静态变量 忽略空安全

   flutter build apk -t lib/main_develop.dart --no-sound-null-safety

2. 通过参数读取参数执行

   --dart-define=channel_name=1
   String.fromEnvironment('channel_name', defaultValue: 'unknown')

3. 打包

   生成签名
       keytool -genkey -v -keystore /D:/key.jks -keyalg RSA -keysize 2048 -validity 10000 -alias key
   
   配置build.gradle
       位置app/build.gradle
       signingConfigs {
           release {
               keyAlias 'key'
               keyPassword 'cxcwapk'
               storeFile file('key/sign.jks')
               storePassword 'cxcwapk'
           }
       }
       
       android根目录配置key.properties
       storePassword=cxcwapk
       keyPassword=cxcwapk
       keyAlias=sign
       storeFile=key/sign.jks
        
       修改defaultConfig.applicationId:"独一无二"
   配置logo
   flutter pub run flutter_launcher_icons:main
       
   flutter build apk -t lib/main_develop.dart --no-sound-null-safety