android - Android:在WebView中更改YouTube链接名称

Question

我从RSS Feed中获取了一个字符串，有时其中包含指向YouTube视频的链接。我已经能够从字符串中解析URL。

我希望在WebView内将URL替换为“视频链接”，但单击此链接后，应使用YouTube链接。

目前，我替换了字符串，但是单击该字符串时，将转发新字符串，而不转发YouTube URL。

我的代码:

String description = fFeed.getItem(fPos).getDescription();

    // get all links from the description string
    ArrayList<String> links_in_string = retrieveLinks(description);
    Log.d("debug", "All Links: " + links_in_string.toString());

    // search for YouTube links
    ArrayList<String> resList = new ArrayList<String>();
    String searchString = "www.youtube.com/watch?v=";

    for (String curVal : links_in_string) {
        if (curVal.contains(searchString)) {
            resList.add(curVal);
        }
    }
    Log.d("debug", "YouTube Links: " + resList.toString());

    // convert to single YouTube URL strings and replace
    // them in the description string
    Object[] mStringArray = resList.toArray();
    for (int i = 0; i < mStringArray.length; i++) {
        Log.d("string is", (String) mStringArray[i]);
        description = description.replace((String) mStringArray[i],
                "Link zum Video");
    }


/**
 * Retrieve all the links from the description string
 * of the RSS Feed
 */
private ArrayList<String> retrieveLinks(String text) {
    ArrayList<String> links = new ArrayList<String>();

    String regex = "\\(?\\b(http://|www[.])[-A-Za-z0-9+&@#/%?=~_()|!:,.;]*[-A-Za-z0-9+&@#/%=~_()|]";
    Pattern p = Pattern.compile(regex);
    Matcher m = p.matcher(text);
    while (m.find()) {
        String urlStr = m.group();
        if (urlStr.startsWith("(") && urlStr.endsWith(")")) {
            urlStr = urlStr.substring(1, urlStr.length() - 1);
        }
        links.add(urlStr);
    }
    return links;
}

更新

我必须第二次搜索网址出现在字符串中。我以这种方式尝试过，但是现在它不能代替URL

// convert to single YouTube URL strings and replace
        // them in the description string
        Object[] mStringArray = resList.toArray();
        for (int i = 0; i < mStringArray.length; i++) {

            //replace every second URL by "Link zum Video"
            StringBuffer sb = new StringBuffer();
            Pattern p = Pattern.compile((String) mStringArray[i]);
            Matcher m = p.matcher(description);
            int count = 0;
            while (m.find()) {
                if (count++ % 2 != 0) {
                    m.appendReplacement(sb, "Link zum Video");
                }
            }
            m.appendTail(sb);
            description = sb.toString();

            Log.d("debug", "Description with replaced link: " + description);
        }

Answer 1

我没有对其进行测试，但是也许可以使用 anchor 标记:

description = description.replace((String) mStringArray[i],
                "<a href=\""+(String) mStringArray[i]+"\">Link zum Video</a>");