[RN] How to create signed apk in React native

1. Create key store

keytool -genkey -v -keystore <YOUR_KEYSTORE_NAME>.keystore -alias my-key-alias -keyalg RSA -keysize 2048 -validity 10000

 

2. Move key store file to  android/app directory

 

3. Add this code in gradles.properties

MYAPP_RELEASE_STORE_FILE=<YOUR_KEYSTORE_NAME>.keystore
MYAPP_RELEASE_KEY_ALIAS=my-key-alias
MYAPP_RELEASE_STORE_PASSWORD=<YOUR_PASSWORD>
MYAPP_RELEASE_KEY_PASSWORD=<YOUR_PASSWORD>

 

4. Add this code app/build.gradle

...
android {
    ...
    defaultConfig { ... }
    signingConfigs {
        release {
            if (project.hasProperty('MYAPP_RELEASE_STORE_FILE')) {
                storeFile file(MYAPP_RELEASE_STORE_FILE)
                storePassword MYAPP_RELEASE_STORE_PASSWORD
                keyAlias MYAPP_RELEASE_KEY_ALIAS
                keyPassword MYAPP_RELEASE_KEY_PASSWORD
            }
        }
    }
    buildTypes {
        release {
            ...
            signingConfig signingConfigs.release
        }
    }
}
...

5. build apk

cd android && ./gradlew assembleRelease

 

6. you can find app-release.apk file in android/app/build/outputs/apk/release