Flutter之Android打包

1.生成 key

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keytool -genkey -v -keystore my-reyarn lease-key.jks -keyalg RSA -keysize 2048 -validity 10000 -alias key
  1. -keystore 参数后的值: my-release-key.jks,是生成的key的文件名和存放路径
  2. -alias 参数后的值: key 是key的名称

执行之后会填写一些信息按照提示填写即可,生成的key,copy到 android/app 下,或者直接生成时填写完整地址.

2.配置 key

在<app dir>/android/目录下新建文件key.properties

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storePassword=secret
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keyPassword=secret
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keyAlias=key
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storeFile=my-release-key.jks
  • storePassword 就是创建key时填写的口令,
  • keyPassword 填写口令即可
  • keyAlias 就时 -alias 后面的值
  • storeFile key的文件名

3.配置 gradle

/android/app/build.gradle

修改这个代码块

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android {
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      ...
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}

修改之后

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def keystoreProperties = new Properties()
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   def keystorePropertiesFile = rootProject.file('key.properties')
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   if (keystorePropertiesFile.exists()) {
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       keystoreProperties.load(new FileInputStream(keystorePropertiesFile))
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}
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android {
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         ...
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}

然后替换

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

为

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

3.生成apk

最后执行打包命令
生成的apk目录:build\app\outputs\apk\app.apk

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flutter build apk

官方文档:https://flutter.dev/docs/deployment/android

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