在使用Ray Wenderlich的一些指南之前，我已经完成了xml解析，但这些通常适用于涉及多个项目的情况。我正在努力让应用程序在给定时间显示天气状况，并且提要的XML只具有检查时间的条件。这是有问题的饲料：
<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<rss version="2.0" xmlns:yweather="http://xml.weather.yahoo.com/ns/rss/1.0" xmlns:geo="http://www.w3.org/2003/01/geo/wgs84_pos#">
<channel>
<title>Yahoo! Weather - Montgomery, AL</title>
<link>http://us.rd.yahoo.com/dailynews/rss/weather/Montgomery__AL/*http://weather.yahoo.com/forecast/USAL0375_f.html</link>
<description>Yahoo! Weather for Montgomery, AL</description>
<language>en-us</language>
<lastBuildDate>Thu, 03 Jan 2013 11:55 am CST</lastBuildDate>
<ttl>60</ttl>
<yweather:location city="Montgomery" region="AL" country="United States"/>
<yweather:units temperature="F" distance="mi" pressure="in" speed="mph"/>
<yweather:wind chill="43" direction="0" speed="5" />
<yweather:atmosphere humidity="66" visibility="10" pressure="30.26" rising="2" />
<yweather:astronomy sunrise="6:46 am" sunset="4:52 pm"/>
<image>
<title>Yahoo! Weather</title>
<width>142</width>
<height>18</height>
<link>http://weather.yahoo.com</link>
<url>http://l.yimg.com/a/i/brand/purplelogo//uh/us/news-wea.gif</url>
</image>
<item>
<title>Conditions for Montgomery, AL at 11:55 am CST</title>
<geo:lat>32.38</geo:lat>
<geo:long>-86.3</geo:long>
<link>http://us.rd.yahoo.com/dailynews/rss/weather/Montgomery__AL/*http://weather.yahoo.com/forecast/USAL0375_f.html</link>
<pubDate>Thu, 03 Jan 2013 11:55 am CST</pubDate>
<yweather:condition text="Mostly Cloudy" code="28" temp="46" date="Thu, 03 Jan 2013 11:55 am CST" />
<description><![CDATA[
<img src="http://l.yimg.com/a/i/us/we/52/28.gif"/><br />
<b>Current Conditions:</b><br />
Mostly Cloudy, 46 F<BR />
<BR /><b>Forecast:</b><BR />
Thu - Partly Cloudy. High: 50 Low: 31<br />
Fri - Sunny. High: 57 Low: 35<br />
<br />
<a href="http://us.rd.yahoo.com/dailynews/rss/weather/Montgomery__AL/*http://weather.yahoo.com/forecast/USAL0375_f.html">Full Forecast at Yahoo! Weather</a><BR/><BR/>
(provided by <a href="http://www.weather.com" >The Weather Channel</a>)<br/>
]]></description>
<yweather:forecast day="Thu" date="3 Jan 2013" low="31" high="50" text="Partly Cloudy" code="30" />
<yweather:forecast day="Fri" date="4 Jan 2013" low="35" high="57" text="Sunny" code="32" />
<guid isPermaLink="false">USAL0375_2013_01_04_7_00_CST</guid>
</item>
</channel>
</rss>
基本上，我需要的应用程序是当前的温度和条件，在item标签下包含在yweather：conditions标签中。使用GDataXML，获取此信息并将NSString设置为等于它的最简单方法是什么？
现在，我正在使用Ray的教程中使用asihttprequest和块进行排序并将其全部放入NSMutableArray中的一些复杂内容，但我相当确定它现在不需要那么复杂。