I have a sample from Gaelyk (called Bloogie) and it is using gradlew.
I am behind a proxy.
I\'ve read gradle docs and found this:
gradle.properties>
I have the same proxy issue while working with Cordova project.
To fix the issue, I have created a new gradle.properties file under the android folder of my Cordova project (hello/platforms/android), and added the code from your question
systemProp.http.proxyHost=proxy.yourproxysite.com
systemProp.http.proxyPort=8080
systemProp.http.proxyUser=yourusername
systemProp.http.proxyPassword=password