android - 如何在字符串中使用 **text** 来粗体文本

Question

我想将 ** 之间的文本加粗。我已尝试使用以下代码但没有成功。它正在将整个文本创建为粗体。

Original String : **Hi**, My Name is **XYZ** with **PQR**"

Want Output : Hi, My Name is XYZ with PQR

这是我尝试过的。

private SpannableStringBuilder getText() {
    String message = "**Hi**, My Name is **XYZ** with **PQR**";
    Pattern p = Pattern.compile(".+.+(.*?).+.+");
    Matcher matcher = p.matcher(message);

    SpannableStringBuilder spannable = new SpannableStringBuilder(message);
    StyleSpan span = new StyleSpan(Typeface.BOLD);
    while (matcher.find()) {
        spannable.setSpan(span, matcher.start(), matcher.end(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
    }
    return spannable;
}

Answer 1

请使用此代码解决上述问题

 private SpannableStringBuilder getActivityText(String message) {
    Pattern p = Pattern.compile("(\\*\\*)(.*?)(\\*\\*)");
    Matcher matcher = p.matcher(message);

    SpannableStringBuilder spannable = new SpannableStringBuilder(message);
    List<StyleSpan> spans = new ArrayList<>();
    //for making text bold
    while (matcher.find()) {
        StyleSpan span = new StyleSpan(Typeface.BOLD);
        spannable.setSpan(span, matcher.start(), matcher.end(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
        spans.add(span);
    }
    //for removing ** text
    for (StyleSpan span : spans) {
        spannable.replace(spannable.getSpanStart(span), spannable.getSpanStart(span) + 2, "");
        spannable.replace(spannable.getSpanEnd(span) - 2, spannable.getSpanEnd(span), "");
    }

    return spannable;
}