How to set a long click listener on a MenuItem (on a NavigationView)?

Question

How can I set a long click listener on a MenuItem?

I tried this answer, but the method doesn\'t exist for me. Any solutions?

Code:

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Answer 1

Solution

This isn't perfect at all, but still better than everyone is suggesting here, because it works on whole item layout, not only on actionview's part.

Notice:

1. I tested it only in MaterialComponents library 1.1.0-alpha08, so I don't guarantee that it will work in the future
2. I already asked devs to provide better API for this, but I don't know if they gonna make it or not
3. index is the position of an item, BUT it also contains position of: HeaderLayout, Divider, Category (Sub menu header)

Well, here is the code:

val navigationView = findViewById(R.id.navigation_view)
val navigationRecycler = navigationView[0] as RecyclerView // core-ktx extension for ViewGroup
val navigationLayoutManager = navigationRecycler.layoutManager as LinearLayoutManager
val navigationAdapter = navigationRecycler.adapter

if (navigationAdapter != null) {
    navigationRecycler.post { // this line is important
        for (index in 0 until navigationAdapter.itemCount) {
            val item = navigationLayoutManager.findViewByPosition(index)
            item?.setOnLongClickListener {
                Toast.makeText(this, "finally!", Toast.LENGTH_SHORT).show()
                true
            }
        }
    }
}