The repository demonstrates how to setup an Android app for Back4app push notifications.
Before testing the project make sure to enter/change:
YOUR_PARSE_APP_IDandYOUR_PARSE_CLIENT_KEYin app/src/main/res/values/strings.xml.YOUR_GCM_SENDER_IDin app/src/main/AndroidManifest.xml and App.kt.
If you want to learn how to build this checkout the article.