Crash

[ChrisDEV]

com.gc.materialdesign.widgets.Dialog dialog = new com.gc.materialdesign.widgets.Dialog(getActivity(), getString(R.string.application_name), getString( R.string.some_text));
                        dialog.getButtonAccept().setText(getString(R.string.btn_confirm));//Can not process more and crash.
                        dialog.setOnAcceptButtonClickListener(new OnClickListener() {
                            @Override
                            public void onClick(View v) {
                                //do sth.....
                            }
                        });