自定义TextView 链接

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最新推荐文章于 2025-08-12 21:29:04 发布

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文章标签： string 正则表达式 input class url android

本文介绍了一种用于解析微博内容并自定义TextView中链接的方法。通过使用正则表达式匹配@提及、#话题#、语音链接及URL，文章详细展示了如何为这些元素设置点击事件，实现更丰富的交互体验。

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android 解析微博内容，自定义TextView 链接

Posted in: 未分类 | By bojianqiu | 八月 11, 2011 | 0 Comment

参考

http://willvvv.iteye.com/blog/1059370

/**

* 解析微博内容的类

* @author boss

public class WeiboContentParser {

SpannableString mSpannableString;

private static WeiboContentParser mWeiboContentParser;

public static WeiboContentParser getInstance(){

if(mWeiboContentParser == null){

mWeiboContentParser = new WeiboContentParser();

}

return mWeiboContentParser;

}

private final static String VOICE_TAG = “#

#”;

private final static String SINA_HTTP = “http://t\\.cn/\\w+”;

/**

* 微博内容中的at正则表达式

private final Pattern AT_PATTERN = Pattern.compile(“@[\\u4e00-\\u9fa5\\w\\-]+”);

/**

* 微博内容中的#话题#正则表达式

private final Pattern TAG_PATTERN = Pattern.compile(“#([^\\#|.]+)#”);

/**

* 微博内容中的at正则表达式

private final Pattern VOICE_PATTERN = Pattern.compile(VOICE_TAG+SINA_HTTP);

/**

* 微博内容中的url正则表达式

private final Pattern URL_PATTERN = Pattern.compile(SINA_HTTP);

public SpannableString parse(String input) {

SpannableString mSpannableString = new SpannableString(input);

Matcher mAtMatcher = AT_PATTERN.matcher(input);

while(mAtMatcher.find()){

String atNameMatch = mAtMatcher.group();

String subAtNameMatch = atNameMatch.substring(1, atNameMatch.length());

mSpannableString.setSpan(new WeiboAtClickSpan(subAtNameMatch), mAtMatcher.start(), mAtMatcher.end(), SpannableString.SPAN_EXCLUSIVE_EXCLUSIVE);

}

Matcher mTopicMatcher = TAG_PATTERN.matcher(input);

while(mTopicMatcher.find()){

String tagNameMatch = mTopicMatcher.group();

String subTagNameMatch = tagNameMatch.substring(1, tagNameMatch.length()-1);

mSpannableString.setSpan(new WeiboTagClickSpan(subTagNameMatch), mTopicMatcher.start(), mTopicMatcher.end(), SpannableString.SPAN_EXCLUSIVE_EXCLUSIVE);

}

Matcher mVoiceMatcher = VOICE_PATTERN.matcher(input);

while(mVoiceMatcher.find()){

String voiceNameMatch = mVoiceMatcher.group();

String subVoiceNameMatch = voiceNameMatch.substring(VOICE_TAG.length(), voiceNameMatch.length());

mSpannableString.setSpan(new BackgroundColorSpan(Color.RED), mVoiceMatcher.start()+VOICE_TAG.length(), mVoiceMatcher.end(), SpannableString.SPAN_EXCLUSIVE_EXCLUSIVE);

mSpannableString.setSpan(new WeiboVoiceClickSpan(subVoiceNameMatch), mVoiceMatcher.start()+VOICE_TAG.length(), mVoiceMatcher.end(), SpannableString.SPAN_EXCLUSIVE_EXCLUSIVE);

Matcher mUrlMatcher = URL_PATTERN.matcher(input);

while(mUrlMatcher.find()){

String urlNameMatch = mUrlMatcher.group();

mSpannableString.setSpan(new WeiboUrlClickSpan(urlNameMatch), mUrlMatcher.start(), mUrlMatcher.end(), SpannableString.SPAN_EXCLUSIVE_EXCLUSIVE);

}

return mSpannableString;

}

/**

*WeiboClickSpan类，WeiboAtClickSpan 等类继承自此类，在onClick(View widget, String content)方法中做调用操作

public abstract class WeiboClickSpan extends ClickableSpan {

// 点击的内容

String mContent;