SpannableStringUtils.java

package im.zico.wingtwitter.utils;

import android.text.Spannable;
import android.text.SpannableString;
import android.text.Spanned;
import android.text.TextPaint;
import android.text.style.URLSpan;
import android.text.util.Linkify;
import android.util.Log;
import android.util.Patterns;

import java.util.regex.Pattern;

public class SpannableStringUtils {

    private static final Pattern PATTERN_WEB = Patterns.WEB_URL;

//	private static final Pattern PATTERN_TOPIC = Pattern.compile(Regex.HASHTAG_PATTERN);
//	private static final Pattern PATTERN_MENTION = Pattern.compile("@([A-Za-z0-9_-]+)");

    private static final String HTTP_SCHEME = "http://";
    private static final String TOPIC_SCHEME = "im.zico.wingtwittert.topic://";
    private static final String MENTION_SCHEME = "im.zico.wingtwitter.user://";

    public static SpannableString span(String text) {

        SpannableString ss = SpannableString.valueOf(text);
        Linkify.addLinks(ss, PATTERN_WEB, HTTP_SCHEME);
        Linkify.addLinks(ss, Regex.HASHTAG_PATTERN, TOPIC_SCHEME);
        Linkify.addLinks(ss, Regex.MENTION_PATTERN, MENTION_SCHEME);

        // Convert to our own span
        URLSpan[] spans = ss.getSpans(0, ss.length(), URLSpan.class);
        for (URLSpan span : spans) {
            WeiboSpan s = new WeiboSpan(span.getURL());
            int start = ss.getSpanStart(span);
            int end = ss.getSpanEnd(span);
            ss.removeSpan(span);
//            if(ss.charAt(end-1) == ')') {
//                // Fix when url ended by ')'
//                s = new WeiboSpan(span.getURL().substring(0, span.getURL().length()-1));
//                end--;
//            }
//
//            if (span.getURL().startsWith("http") && span.getURL().length() > 30) {
////                s = new WeiboSpan(span.getURL().substring(0, span.getURL().length()-1));
//                Log.d("DEBUG", "Long url: " + span.getURL());
//            }
            ss.setSpan(s, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
        }

        return ss;
    }

    public static void removeUnderlines(Spannable p_Text) {
        URLSpan[] spans = p_Text.getSpans(0, p_Text.length(), URLSpan.class);

        for(URLSpan span:spans) {
            int start = p_Text.getSpanStart(span);
            int end = p_Text.getSpanEnd(span);
            p_Text.removeSpan(span);
            span = new URLSpanNoUnderline(span.getURL());
            p_Text.setSpan(span, start, end, 0);
        }
    }

    static class URLSpanNoUnderline extends URLSpan {
        public URLSpanNoUnderline(String p_Url) {
            super(p_Url);
        }

        public void updateDrawState(TextPaint p_DrawState) {
            super.updateDrawState(p_DrawState);
            p_DrawState.setUnderlineText(false);
        }
    }


}