ResXmlPatcher.java 文件源码

/**
 * Finds key in strings.xml file and returns text value
 *
 * @param directory Root directory of apk
 * @param key String reference (ie @string/foo)
 * @return String|null
 * @throws AndrolibException
 */
public static String pullValueFromStrings(File directory, String key) throws AndrolibException {
    if (! key.contains("@")) {
        return null;
    }

    File file = new File(directory, "/res/values/strings.xml");
    key = key.replace("@string/", "");

    if (file.exists()) {
        try {
            Document doc = loadDocument(file);
            XPath xPath = XPathFactory.newInstance().newXPath();
            XPathExpression expression = xPath.compile("/resources/string[@name=" + '"' + key + "\"]/text()");

            Object result = expression.evaluate(doc, XPathConstants.STRING);

            if (result != null) {
                return (String) result;
            }

        }  catch (SAXException | ParserConfigurationException | IOException | XPathExpressionException ignored) {
        }
    }

    return null;
}