如何在rss提要的xml解析中获取

Question

如何在android中获取url <img src=''>并打开rss feed

<description>
<img src="http://static.ibnlive.in.com/ibnlive/pix/sitepix/03_2010/google_new_630_90x62.jpg" alt="REDIRECTED: Google shut its Chinese portal over censorship and visitors were being redirected to Hong Kong-based site." title="REDIRECTED: Google shut its Chinese portal over censorship and visitors were being redirected to Hong Kong-based site." border="0" width="70" height="50" align="left" hspace="5"/>The company joins Google in protesting cyber attacks and censorship in China.
</description>

Answer 1

如果你想从上面的XML获取一个URL，你可以尝试使用jsoup库：

String input = "<description>\n" +
            "<img src=\"http://static.ibnlive.in.com/ibnlive/pix/sitepix/03_2010/google_new_630_90x62.jpg\"" +
            " alt=\"REDIRECTED: Google shut its Chinese portal over censorship and visitors were being redirected" +
            " to Hong Kong-based site.\" title=\"REDIRECTED: Google shut its Chinese portal" +
            " over censorship and visitors were being redirected to Hong Kong-based site.\"" +
            " border=\"0\" width=\"70\" height=\"50\" align=\"left\" hspace=\"5\"/>The company" +
            " joins Google in protesting cyber attacks and censorship in China.\n" +
            "</description>";
Document document = Jsoup.parse(input);
String output = document.select("img").first().attr("src");

Answer 2

首先，您应该使用RssParser获取描述字符串，然后将该字符串发送到此方法。你不需要去图书馆。当然，首先你应该用‘代替’来匹配你的例子和我的答案，并选择一个特殊的单词，它只存在于你的img url中，代表我的代码中的"equals“，比如你问题中存在的"pix”单词。

private String helperString(String str) {
    String[] strings = str.split("'");
    for (String string: strings) {
        Log.i("STR", "string : " + string);
        String[] newString = string.split("/");
        for (String a: newString) {
            if (a.equals("images")){  //in your question pix or other words
                Log.i("URL", "Image Url is : " + string);
                return string;
            }
        }
    }
    return "";
}