Flutter Android quick package release

Flutter Android creates a certificate and packs it

1. Use Android Studiu to quickly create a certificate

Use Android Studiu to open the project, right-click to open it in Android mode

Choose the first option and click Next

Select the address to create a new certificate file, I put it in the android folder of the project

The two passwords need to be remembered and will be used later, after filling in, click OK, if there is a permission problem, please open the full access permission of the folder

You can close other windows after the creation is successful.

After the certificate is created, please create a file named key.properties in the android folder of the project

在文件中填入以下内容

storePassword=创建证书输入的密码
keyPassword=创建证书输入的密码
keyAlias=证书标识符
storeFile=../证书文件名

2. Configure the signature in gradle

Configure signing for your application by editing the android/app/build.gradle file

1. Replace

android {
    
    

for:

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

android {
    
    

2. Replace

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
    }
}

for:

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

If you need to turn on obfuscation or other details, please see the official website: release the Android version of the APP

Finally use the command line to package:

运行flutter build apk (flutter build 默认会包含 --release选项)。
打包好的APK位于/build/app/outputs/apk/app-release.apk。

You can also install the release APK on the device

用USB您的Android设备连接到您的电脑
运行 flutter install