Android set localhost address to local ip

build.gradle

android {
    buildTypes {
        debug {
            debuggable true
            buildConfigField "String", "API_HOST", '"http://' + getIpAddress() + ':3000"'
            buildConfigField "String", "API_PATH", '"/api/v1"'
        }
    }
}

def getIpAddress() {
    for (NetworkInterface iface : NetworkInterface.getNetworkInterfaces()) {
        for (InterfaceAddress address : iface.getInterfaceAddresses()) {
            final String ip = address.getAddress().getHostAddress()
            if (ip.length() < 15) return ip
        }
    }
}