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/**
* Android ownCloud News
*
* @author David Luhmer
* @copyright 2013 David Luhmer david-dev@live.de
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
* License as published by the Free Software Foundation; either
* version 3 of the License, or any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU AFFERO GENERAL PUBLIC LICENSE for more details.
*
* You should have received a copy of the GNU Affero General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
*/
package de.luhmer.owncloudnewsreader.helper;
import com.nostra13.universalimageloader.core.ImageLoader;
import java.util.ArrayList;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class ImageHandler {
private static final Pattern patternImg = Pattern.compile("<img[^>]*>");
private static final Pattern patternImgSrcLink = Pattern.compile("src=\"(.*?)\"");
public static List<String> getImageLinksFromText(String text)
{
List<String> links = new ArrayList<>();
Matcher matcher = patternImg.matcher(text);
// Check all occurrences
while (matcher.find()) {
Matcher matcherSrcLink = patternImgSrcLink.matcher(matcher.group());
if(matcherSrcLink.find()) {
String link = matcherSrcLink.group(1);
if(link.startsWith("//")) { //Maybe the text contains image urls without http or https prefix.
link = "https:" + link;
}
links.add(link);
}
}
return links;
}
public static void clearCache()
{
if(ImageLoader.getInstance().isInited()) {
ImageLoader.getInstance().clearDiskCache();
ImageLoader.getInstance().clearMemoryCache();
}
}
}
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