How to change the default height of bottomsheet dialog fragment?

Try this following code.

super.setupDialog(dialog, style);

View contentView = View.inflate(getContext(), R.layout.activity_device_nfclocation, null);

DisplayMetrics displayMetrics = getActivity().getResources().getDisplayMetrics();

int width = displayMetrics.widthPixels;
int height = displayMetrics.heightPixels;

int maxHeight = (int) (height*0.88);

BottomSheetBehavior mBehavior = BottomSheetBehavior.from((View) contentView.getParent());
mBehavior.setPeekHeight(maxHeight);
dialog.show();