如何在EditText中添加数字分隔符

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

TextWatcher textWatcher = new TextWatcher() {
    private String currentText = "";

    @Override
    public void beforeTextChanged(CharSequence s, int start, int count, int after) {
        // 保存当前文本内容
        currentText = s.toString();
    }

    @Override
    public void onTextChanged(CharSequence s, int start, int before, int count) {
        // 移除之前添加的分隔符
        String newText = s.toString().replace(",", "");

        // 添加新的分隔符
        StringBuilder formattedText = new StringBuilder();
        int length = newText.length();
        for (int i = 0; i < length; i++) {
            formattedText.append(newText.charAt(i));
            if ((length - i) % 3 == 1 && i != length - 1) {
                formattedText.append(",");
            }
        }

        // 更新EditText的文本内容
        editText.removeTextChangedListener(this);
        editText.setText(formattedText.toString());
        editText.setSelection(formattedText.length());
        editText.addTextChangedListener(this);
    }

    @Override
    public void afterTextChanged(Editable s) {
        // 不需要实现任何逻辑
    }
};

editText.addTextChangedListener(textWatcher);