Navigation Drawer Activity change fragment from external button

Question

So I have set up the default Navigation Drawer Activity in Android Studio. I also added some buttons in the default navigation activity XML. The default navigation menu buttons obviously change the fragment, but I was wondering how I could also change the fragments via the buttons that I have added along the bottom? The reason I am having trouble is that the default nagivation menu buttons are part of a navGraph, whereas my buttons are not, thanks!

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Answer 1

All you need to do is set onClickListeners on the button.

For example:

val postButton = findViewById<Button>(R.id.post_button)

postButton.setOnClickListener {
    findNavController().navigate(R.id.post_fragment)
}