Flutter 打包apk

創建在android目錄下創建key.properties

storePassword=<password from previous step>
keyPassword=<password from previous step>
keyAlias=key
storeFile=<location of the key store file, e.g. /Users/<user name>/key.jks> //keykey存放位置

在gradle中配置簽名
替換:
android {
爲：

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

替換:

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
    }
}

爲:

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

構建一個發佈版（release）APK
使用命令行:
cd <app dir> ( 爲您的工程目錄).
運行flutter build apk (flutter build 默認會包含 --release選項).
打包好的發佈APK位於 /build/app/outputs/apk/app-release.apk。

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