private void obtainBackButtonText() {
        CharSequence text;

        try {
            text = ThemeUtil.getText(this, R.attr.backButtonText);
        } catch (NotFoundException e) {
            text = getText(R.string.back_button_text);
        }

        setBackButtonText(text);
    }
private void obtainBackButtonText ( ) { CharSequence text ; try { text = ThemeUtil . getText ( this , R . attr . backButtonText ) ; } catch ( NotFoundException e ) { text = getText ( R . string . back_button_text ) ; } setBackButtonText ( text ) ; }
Obtains the text of the back button from the activity's theme.