In this tutorial I described how you can use Safe Args Plugin to transfer data between fragments in your App. This tutorial has been made with Kotlin language.
Navigation Graph tutorial has Five parts, I have provided the completed project source code.If you face any problem you can find out from there.
Source code from Github...
https://github.com/shahsamir97/DemoNavigationGraph
Navigation Graph part-2 : Android Up Button tutorial https://youtu.be/BaCWbQYe434