我想从路透社热门新闻（http://feeds.reuters.com/reuters/topNews）获取 media:thumbnail 或 media:content . 但Feed由Feedburner生成，并且没有媒体：内容或媒体：缩略图标签 . 标签中有很多img src信息，但奇怪的是这些图像是空的（在下面的XML中突出显示） .

这是我从路透社提要的XML项目：

<item><title>U.S. banks seen falling short of new debt funding rule</title><link>http://feeds.reuters.com/~r/reuters/topNews/~3/M_C5zQtGkmM/story01.htm</link><description>WASHINGTON (Reuters) - Wells Fargo, State Street and JPMorgan Chase &amp; Co are below or almost at minimum capital thresholds expected to be included in a rule still being hammered out by U.S. regulators that's meant to mitigate taxpayer losses in another financial crisis, according to a Reuters analysis.&lt;img width='1' height='1' src='**http://reuters.us.feedsportal.com/c/35217/f/654200/s/3b92de13/sc/1/mf.gif**' border='0'/&gt;&lt;br clear='all'/&gt;&lt;br/&gt;&lt;br/&gt;&lt;a href="http://da.feedsportal.com/r/199119768574/u/49/f/654200/c/35217/s/3b92de13/sc/1/rc/1/rc.htm" rel="nofollow"&gt;&lt;img src="**http://da.feedsportal.com/r/199119768574/u/49/f/654200/c/35217/s/3b92de13/sc/1/rc/1/rc.img**" border="0"/&gt;&lt;/a&gt;&lt;br/&gt;&lt;a href="http://da.feedsportal.com/r/199119768574/u/49/f/654200/c/35217/s/3b92de13/sc/1/rc/2/rc.htm" rel="nofollow"&gt;&lt;img src="http://da.feedsportal.com/r/199119768574/u/49/f/654200/c/35217/s/3b92de13/sc/1/rc/2/rc.img" border="0"/&gt;&lt;/a&gt;&lt;br/&gt;&lt;a href="http://da.feedsportal.com/r/199119768574/u/49/f/654200/c/35217/s/3b92de13/sc/1/rc/3/rc.htm" rel="nofollow"&gt;&lt;img src="http://da.feedsportal.com/r/199119768574/u/49/f/654200/c/35217/s/3b92de13/sc/1/rc/3/rc.img" border="0"/&gt;&lt;/a&gt;&lt;br/&gt;&lt;br/&gt;&lt;a href="http://da.feedsportal.com/r/199119768574/u/49/f/654200/c/35217/s/3b92de13/sc/1/a2.htm"&gt;&lt;img src="http://da.feedsportal.com/r/199119768574/u/49/f/654200/c/35217/s/3b92de13/sc/1/a2.img" border="0"/&gt;&lt;/a&gt;&lt;img width="1" height="1" src="http://pi.feedsportal.com/r/199119768574/u/49/f/654200/c/35217/s/3b92de13/sc/1/a2t.img" border="0"/&gt;&lt;div class="feedflare"&gt;
&lt;a href="http://feeds.reuters.com/~ff/reuters/topNews?a=M_C5zQtGkmM:4K39DmkD6Z4:yIl2AUoC8zA"&gt;&lt;img src="http://feeds.feedburner.com/~ff/reuters/topNews?d=yIl2AUoC8zA" border="0"&gt;&lt;/img&gt;&lt;/a&gt; &lt;a href="http://feeds.reuters.com/~ff/reuters/topNews?a=M_C5zQtGkmM:4K39DmkD6Z4:V_sGLiPBpWU"&gt;&lt;img src="http://feeds.feedburner.com/~ff/reuters/topNews?i=M_C5zQtGkmM:4K39DmkD6Z4:V_sGLiPBpWU" border="0"&gt;&lt;/img&gt;&lt;/a&gt; &lt;a href="http://feeds.reuters.com/~ff/reuters/topNews?a=M_C5zQtGkmM:4K39DmkD6Z4:-BTjWOF_DHI"&gt;&lt;img src="http://feeds.feedburner.com/~ff/reuters/topNews?i=M_C5zQtGkmM:4K39DmkD6Z4:-BTjWOF_DHI" border="0"&gt;&lt;/img&gt;&lt;/a&gt;
&lt;/div&gt;&lt;img src="http://feeds.feedburner.com/~r/reuters/topNews/~4/M_C5zQtGkmM" height="1" width="1"/&gt;</description><category domain="">topNews</category><pubDate>Tue, 17 Jun 2014 05:39:07 GMT</pubDate><guid isPermaLink="false">http://www.reuters.com/article/2014/06/17/us-usa-banks-debt-analysis-idUSKBN0ES0C620140617?feedType=RSS&amp;feedName=topNews</guid><feedburner:origLink>http://reuters.us.feedsportal.com/c/35217/f/654200/s/3b92de13/sc/1/l/0L0Sreuters0N0Carticle0C20A140C0A60C170Cus0Eusa0Ebanks0Edebt0Eanalysis0EidUSKBN0AES0AC620A140A6170DfeedType0FRSS0GfeedName0FtopNews/story01.htm</feedburner:origLink></item>

以下是相同Feed的Pulse应用程序的屏幕截图 . 但他们能够从饲料中提取图像 . （https://www.dropbox.com/s/cwoi20ljgsign7s/Screenshot_2014-06-17-09-57-05.png）

所以我的问题是Pulse News如何从特定的Feed中获取图像？

谢谢！

android xml rss feed