Android widget: How to change the text of a button

Question

How can I change the text of an Android button widget within code and not the XML file?

Answer 1

use the exchange using java. setText = "...", for class java there are many more methods for implementation.

    //button fechar
    btnclose.setEnabled(false);
    btnclose.setText("FECHADO");
    View.OnClickListener close = new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            if (btnclose.isClickable()) {
                btnOpen.setEnabled(true);
                btnOpen.setText("ABRIR");
                btnclose.setEnabled(false);
                btnclose.setText("FECHADO");
            } else {
                btnOpen.setEnabled(false);
                btnOpen.setText("ABERTO");
                btnclose.setEnabled(true);
                btnclose.setText("FECHAR");
            }

            Toast.makeText(getActivity(), "FECHADO", Toast.LENGTH_SHORT).show();
        }
    };

    btnclose.setOnClickListener(close);