DialogFragment ignores OnBackPressedDispatcher

I'm trying to handle the back button in a BottomSheetDialogFragment, which is a DialogFragment, using 'androidx.activity:activity-ktx:1.1.0-alpha01' and 'androidx.fragment:fragment-ktx:1.2.0-alpha01'.

handleOnBackPressed() is not called and the DialogFragment is dismissed. The OnBackPressedCallback is enabled when the back button is pressed.

I think the DialogFragment is intercepting the back button press, because the ComponentActivity never calls mOnBackPressedDispatcher.onBackPressed();

Is there a way to override the DialogFragment handling of back button press?

I found a solution, but I hope the library will take care of this usecase.

Create a custom BottomSheetDialog:

class BackPressBottomSheetDialog(context: Context, @StyleRes theme: Int, 
private val callback: BackPressBottomSheetDialogCallback) :
        BottomSheetDialog(context, theme) {

    override fun onBackPressed() {
        if (callback.shouldInterceptBackPress()) callback.onBackPressIntercepted()
        else super.onBackPressed()
    }
}

And its interface

interface BackPressBottomSheetDialogCallback {
    fun shouldInterceptBackPress(): Boolean
    fun onBackPressIntercepted()
}

Then in your BottomSheetDialogFragment

private val dialogCallback = object : BackPressBottomSheetDialogCallback {
      override fun shouldInterceptBackPress(): Boolean {
        //TODO should you intercept the back button?
      }

      override fun onBackPressIntercepted() {
        //TODO what happens when you intercept the back button press
      }
}

override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
    return BackPressBottomSheetDialog(requireContext(), theme, dialogCallback)
}