This may help:
if (cbProhibitEditPW.isChecked()) { // disable editing password
editTextPassword.setFocusable(false);
editTextPassword.setFocusableInTouchMode(false); // user touches widget on phone with touch screen
editTextPassword.setClickable(false); // user navigates with wheel and selects widget
isProhibitEditPassword= true;
} else { // enable editing of password
editTextPassword.setFocusable(true);
editTextPassword.setFocusableInTouchMode(true);
editTextPassword.setClickable(true);
isProhibitEditPassword= false;
}