onStart BottomSheet height

CustomBottomSheetFragment.kt

    override fun onStart() {
        super.onStart()
        if (dialog != null) {
            val bottomSheet =
                dialog!!.findViewById<View>(com.google.android.material.R.id.design_bottom_sheet)
            bottomSheet.layoutParams.height = 600
            val behavior = BottomSheetBehavior.from(bottomSheet)
            behavior.state = BottomSheetBehavior.STATE_EXPANDED
            behavior.skipCollapsed = true
        }
    }