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POHow do I insert a new node to an existing XML
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  1. POHow do I insert a new node to an existing XML
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    copied!<p>I would like to insert a new node into a existent xml file, but The code below inserts all the nodes again.</p> <p>I do a test if the file exists. If not, I create a new xml file and write the tags. If exists, it also creates the nodes, but the wrong way.</p> <pre><code>//create a new file called "new.xml" in the SD card File newxmlfile = new File(Environment.getExternalStorageDirectory() + "/download/teste/audit.xml"); if (newxmlfile.exists()){ try{ fileos = new FileOutputStream(newxmlfile, true); }catch(FileNotFoundException e){ Log.e("FileNotFoundException", "can't create FileOutputStream"); } } else { try{ newxmlfile.createNewFile(); }catch(IOException e){ Log.e("IOException", "exception in createNewFile() method"); } try{ fileos = new FileOutputStream(newxmlfile); }catch(FileNotFoundException e){ Log.e("FileNotFoundException", "can't create FileOutputStream"); } } //we create a XmlSerializer in order to write xml data XmlSerializer serializer = Xml.newSerializer(); try { serializer.setOutput(fileos, "UTF-8"); serializer.startDocument(null, Boolean.valueOf(true)); serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); serializer.startTag(null, "root"); serializer.startTag(null, "child1"); serializer.endTag(null, "child1"); serializer.startTag(null, "child2"); serializer.attribute(null, "attribute", "value"); serializer.endTag(null, "child2"); serializer.startTag(null, "child3"); serializer.text("some text inside child3"); serializer.endTag(null, "child3"); serializer.endTag(null, "root"); serializer.endDocument(); serializer.flush(); fileos.close(); Context context = getApplicationContext(); CharSequence text = "Save!"; int duration = Toast.LENGTH_SHORT; Toast toast = Toast.makeText(context, text, duration); toast.show(); } catch (Exception e) { Log.e("Exception","error occurred while creating xml file"); } </code></pre> <p>The result is this:</p> <pre><code>&lt;?xml version='1.0' encoding='UTF-8' standalone='yes' ?&gt; &lt;root&gt; &lt;child1 /&gt; &lt;child2 attribute="value" /&gt; &lt;child3&gt;some text inside child3&lt;/child3&gt; &lt;/root&gt;&lt;?xml version='1.0' encoding='UTF-8' standalone='yes' ?&gt; &lt;root&gt; &lt;child1 /&gt; &lt;child2 attribute="value" /&gt; &lt;child3&gt;some text inside child3&lt;/child3&gt; &lt;/root&gt; </code></pre> <p>But I want the result like this:</p> <pre><code>&lt;?xml version='1.0' encoding='UTF-8' standalone='yes' ?&gt; &lt;root&gt; &lt;child1 /&gt; &lt;child2 attribute="value" /&gt; &lt;child3&gt;some text inside child3&lt;/child3&gt; &lt;child1 /&gt; &lt;child2 attribute="value" /&gt; &lt;child3&gt;some text inside child3&lt;/child3&gt; &lt;/root&gt; </code></pre> <p>Thanks!</p>
 

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