在BottomSheetDialogFragment中使用onCreateDialog方法创建Dialog并返回，在该Dialog中调用onCreateView创建View，然后重写onStart方法，将BottomSheetDialogFragment的Behavior设为STATE_HIDDEN。

示例代码：

public class MyBottomSheetDialogFragment extends BottomSheetDialogFragment {

    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        return new BottomSheetDialog(requireContext(), getTheme());
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        return inflater.inflate(R.layout.my_bottom_sheet_layout, container, false);
    }

    @Override
    public void onStart() {
        super.onStart();
        BottomSheetBehavior behavior = getDialog().getWindow().getDecorView().findViewById(com.google.android.material.R.id.design_bottom_sheet);
        behavior.setState(BottomSheetBehavior.STATE_HIDDEN);
    }
}