flutter打包

1. 打开terminal

2. 输入命令：keytool -genkey -v -keystore C:/20190628/android -keyalg RSA -keysize 2048 -validity 10000 -alias key

注：C:/20190628/android 为key保存路径

3. 填充信息

4. 在android文件夹下建立一个名为key.properties的文件

 

5. Key.properties文件中添加

 

storePassword=<password from previous step> //输入上一步建立KEY时输入的 密钥库 密码

keyPassword=<password from previous step> //输入上一步建立KEY时输入的 密钥 密码

keyAlias=key

storeFile=C:/20190628/android/file //key.jks的存放路径

 

6. 在/android/app/build.gradle文件，在android {这一行前面，加入以下代码

def keystorePropertiesFile = rootProject.file("key.properties")
def keystoreProperties = new Properties()

keystoreProperties.load(new FileInputStream(keystorePropertiesFile))

 

7. 把以下代码进行替换

 

buildTypes {
    release {
        // TODO: Add your own signing config for the release build.
        // Signing with the debug keys for now, so `flutter run --release` works.
        signingConfig signingConfigs.debug
    }
}

 

替换成

signingConfigs {
    release {
        keyAlias keystoreProperties['keyAlias']
        keyPassword keystoreProperties['keyPassword']
        storeFile file(keystoreProperties['storeFile'])
        storePassword keystoreProperties['storePassword']
    }
}
buildTypes {
    release {
        signingConfig signingConfigs.release
    }
}

8. 生成apk，直接在终端输入

flutter build apk

9. Flutter install 安装到虚拟机上

注：大坑！

请将key.properties文件中值后全部字符删除，不然会报错