Question

我有一个xml文件并从该文件中获取数据并将其保存在arraylist

中

xml文件：

    <head>33</head>
   <link>http://hamrahtest.ir/testcenterv13.apk</link>
</group>
<group>

    <head>355</head>
   <link>http://hamrahtest.ir/testcenterv5555.apk</link>
</group>

 protected void onPostExecute(Document doc) {

        ArrayList<HashMap<String, String>> songsList = new ArrayList<HashMap<String, String>>();

        NodeList nl = doc.getElementsByTagName(KEY_GROUPS);
        // looping through all song nodes <song>
        for (int i = 0; i < nl.getLength(); i++) {
            // creating new HashMap
            HashMap<String, String> map = new HashMap<String, String>();
             Element e = (Element) nl.item(i);
            // adding each child node to HashMap key => value

            map.put(KEY_HEAD, parser.getValue(e, KEY_HEAD));
            map.put(KEY_LINK, parser.getValue(e, KEY_LINK));

            // adding HashList to ArrayList
            songsList.add(map);
        }
        Log.d("tagname",songsList.get(1).get(KEY_HEAD).toString());

     }

根据此代码我有一行：

private static final String[] CONTENT = new String[] {" page1","page2"};

我如何将KEY_HEAD valuse插入CONTENT而不是{“page1”，“page2”}？

Answer 1

您可以使用HashMap获取Set Set<String>个密钥，使用toArray(T[] a)将Set<String>转换为String[]

Set<String> keys = map.keySet();
String[] CONTENT = new String[keys .size()];
keys.toArray(CONTENT);

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1 个答案: