在Android EditText中，按空格键替换editText中以前的最新单词

EditText editText = findViewById(R.id.editText);

editText.setOnKeyListener(new View.OnKeyListener() {
    @Override
    public boolean onKey(View v, int keyCode, KeyEvent event) {
        if (keyCode == KeyEvent.KEYCODE_SPACE && event.getAction() == KeyEvent.ACTION_DOWN) {
            String text = editText.getText().toString();
            String[] words = text.split(" ");
            
            if (words.length > 1) {
                String lastWord = words[words.length - 2];
                String newWord = "replacement"; // 替换为新的单词
                
                text = text.replace(lastWord, newWord);
                editText.setText(text);
            }
        }
        return false;
    }
});