Signing release key in AndroidStudio

Put this into ~/.gradle/gradle.properties

RELEASE_STORE_FILE={path to your keystore}
RELEASE_STORE_PASSWORD=*****
RELEASE_KEY_ALIAS=*****
RELEASE_KEY_PASSWORD=*****

注意!RELEASE_STORE_FILE 的路徑要是絕對路徑 Android Studio 很笨的會把 ~/.... 串起來, 然後找不到

signingConfigs {

   release {
       storeFile file(RELEASE_STORE_FILE)
       storePassword RELEASE_STORE_PASSWORD
       keyAlias RELEASE_KEY_ALIAS
       keyPassword RELEASE_KEY_PASSWORD
   }
}

buildTypes {
        release {
            signingConfig signingConfigs.release
        }
}

ref: StackOverflow