如何在Android中使用Regex和SpannableString更改特定文本的颜色

import android.graphics.Color;
import android.text.SpannableString;
import android.text.style.ForegroundColorSpan;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

private SpannableString changeTextColor(String text, String pattern) {
    SpannableString spannableString = new SpannableString(text);
    Pattern p = Pattern.compile(pattern);
    Matcher m = p.matcher(spannableString);
    while (m.find()) {
        int start = m.start();
        int end = m.end();
        spannableString.setSpan(new ForegroundColorSpan(Color.RED), start, end, SpannableString.SPAN_EXCLUSIVE_EXCLUSIVE);
    }
    return spannableString;
}

String text = "这是一段示例文本，其中的特定文本将被更改颜色。";
String pattern = "特定文本";
SpannableString spannableString = changeTextColor(text, pattern);
textView.setText(spannableString);