如何更新从另一个XML文件动态xml文件？

问题描述

我想更新从另一个XML file.I一个XML文件中使用了一个XML文件，如波纹管：

I would like to update an xml file from another xml file.I have used an xml file as shown bellow:

one.xml

    <?xml version="1.0" encoding="utf-8"?>
   <ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" android:background="#00BFFF">
   <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical">
<LinearLayout
    android:id="@+id/linearLayout1"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content" android:gravity="center" android:visibility="visible">
</LinearLayout>
<LinearLayout
    android:id="@+id/linearLayout2"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content" android:gravity="center" android:visibility="visible">

</LinearLayout>

</LinearLayout>
</ScrollView>

two.xml 如下：

      <?xml version='1.0' encoding='utf-8' standalone='yes' ?>
       <map>
      <int name="linearLayout1" value="8" />
      <int name="linearLayout2" value="0" />
      </map>

从以上两个XML文件，我想改变的属性值之一。 XML时如果

from the above two xml files i would like to change the attribute value one. xml whenif

  <int name ="linearLayout1" value = "8"/>

从 two.xml ，然后我想更新的 one.xml 文件，其中的LinearLayout 机器人：ID =@ + ID / linearLayout1，然后更改属性值，机器人：知名度=水涨船高。请任何机构给出programetic想法就可以了。

from two.xml then i would like to update one.xml file as where LinearLayout android:id="@+id/linearLayout1" then change the attribute value as android:visibility="gone".please any body give an programetic idea on it.

推荐答案

下面是code你想要的是

Here is code what you want it's

    DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance();
    DocumentBuilder docBuilder = docFactory.newDocumentBuilder();
    Document doc = docBuilder.parse("/home/riddhish/developerworkspace/SplitString/src/com/updatexmlwithjava/two.xml");
    DocumentTraversal traversal = (DocumentTraversal) doc;
    Node a = doc.getDocumentElement();
    NodeIterator iterator = traversal.createNodeIterator(a, NodeFilter.SHOW_ELEMENT, null, true);

/ **    *逻辑检查    ** /

/** * Logic for checking **/

boolean flag=false;
for (Node n = iterator.nextNode(); n != null; n = iterator.nextNode()) {
       Element e = (Element) n;
            if ("int".equals(e.getTagName())) {
                if(e.getAttribute("name").equals("linearLayout1")){
                        if(e.getAttribute("value").equals("8"))
                            flag=true;
                    }
            }
}

/ ***逻辑阅读one.xml和设置的android：知名度=水涨船高** /

/*** Logic for reading one.xml and setting android:visibility="gone"**/

docFactory = DocumentBuilderFactory.newInstance();
docBuilder = docFactory.newDocumentBuilder();
doc = docBuilder.parse("/home/riddhish/developerworkspace/SplitString/src/com/updatexmlwithjava/one.xml");
traversal = (DocumentTraversal) doc;
a = doc.getDocumentElement();
iterator = traversal.createNodeIterator(a, NodeFilter.SHOW_ELEMENT, null, true);
for (Node n = iterator.nextNode(); n != null; n = iterator.nextNode()) {
      Element e = (Element) n;
          if ("LinearLayout".equals(e.getTagName())) {
                if(e.getAttribute("android:id").equals("@+id/linearLayout1")){
                        if(flag==true){
                            System.out.println(""+e.getAttribute("android:visibility"));
                            e.setAttribute("android:visibility", "gone");
                        }
                }
          }
}

/ ***逻辑改写one.xml** /

/*** Logic for rewriting one.xml**/

TransformerFactory transformerFactory = TransformerFactory.newInstance();
Transformer transformer = transformerFactory.newTransformer();
DOMSource source = new DOMSource(doc);
StreamResult result = new StreamResult(new File("/home/riddhish/developerworkspace/SplitString/src/com/updatexmlwithjava/one.xml"));
iterator = traversal.createNodeIterator(a, NodeFilter.SHOW_ELEMENT, null, true);
doc = docBuilder.newDocument();
Element rootElement = doc.createElement("ScrollView");
doc.appendChild(rootElement);
for (Node n = iterator.nextNode(); n != null; n = iterator.nextNode()) {
        rootElement.appendChild(doc.importNode(n, true));
}
transformer.transform(source, result);

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