Android TextView 实现文字大小不同和文字颜色不同

来源：互联网发布：c语言如何调用opencv 编辑：程序博客网时间：2024/05/16 01:55

效果图如下：

关键代码如下：

[java] view plaincopy

StringBuffer sb = new StringBuffer();
if(day > 0) {
sb.append("<a href=\"1\">");
sb.append(""+day);
sb.append("</a>");
sb.append(""+Global.getString(R.string.unit_Day2));
}
sb.append("<a href=\"2\">");
if(hour > 9) {
sb.append(" "+hour);
} else {
sb.append(" 0"+hour);
}
sb.append("</a>");
sb.append(""+Global.getString(R.string.unit_Hour2));
sb.append("<a href=\"3\">");
if(minute > 9) {
sb.append(" "+minute);
} else {
sb.append(" 0"+minute);
}
sb.append("</a>");
sb.append(""+Global.getString(R.string.unit_Minute2));
sb.append("<a href=\"4\">");
if(second > 9) {
sb.append(" " + second);
} else {
sb.append(" 0" + second);
}
sb.append("</a>");
sb.append(""+Global.getString(R.string.unit_Second));
int end = sb.length();
SpannableString ss = new SpannableString(Html.fromHtml(sb.toString()));
URLSpan[] urls = ss.getSpans(0, end, URLSpan.class);
String resultStr = sb.toString();
Pattern p_html = Pattern.compile(REGEX_HTML, Pattern.CASE_INSENSITIVE);
Matcher m_html = p_html.matcher(resultStr);
resultStr = m_html.replaceAll(""); // 过滤html标签
SpannableString span = new SpannableString(resultStr);
for (URLSpan url : urls) {
int startIndex = ss.getSpanStart(url);
int endIndex = ss.getSpanEnd(url);
// 原字两倍大小
span.setSpan(new AbsoluteSizeSpan(Global.dpToPx(24)), startIndex, endIndex,
Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
// 设置样式2
span.setSpan(new ForegroundColorSpan(Color.WHITE),
startIndex, endIndex,
Spannable.SPAN_EXCLUSIVE_INCLUSIVE);
// 设置样式3
span.setSpan(new StyleSpan(Typeface.BOLD),
startIndex, endIndex,
Spannable.SPAN_EXCLUSIVE_INCLUSIVE);
}
mBottomLL2_Detail.setText(span);

说明：

1.主要原理为使用SpannableString来做多样式的String给TextView显示

2.用到<a href>标签的原因是为了做到国际化，因为span是按照index来多样化的，所以需要用href来标识多样化的index

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