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POhow to write streamly xml file using serializer
 

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    <p>hi i need to write xml file in android app which add longitude latitude and heart rate</p> <p>when i use it like this </p> <p>declare:<code>public XmlSerializer serializer = Xml.newSerializer();</code> init:</p> <pre><code>try { //we set the FileOutputStream as output for the serializer, using UTF-8 encoding serializer.setOutput(outputStream, "UTF-8"); //Write &lt;?xml declaration with encoding (if encoding not null) and standalone flag (if standalone not null) serializer.startDocument(null, Boolean.valueOf(true)); //set indentation option serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); //start a tag called "root" serializer.startTag(null, "root"); Log.e("Exception","++xml++ created xml file header"); } catch (Exception e) { Log.e("Exception","++xml++ error occurred while creating xml file"); } </code></pre> <p>procedure to end xml file:</p> <pre><code>final Button buttonEnd = (Button) findViewById(R.id.buttonEnd); buttonEnd.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { //XmlSerializer serializer2 = Xml.newSerializer(); try{ serializer.setOutput(outputStream, "UTF-8"); //serializer.endTag(null, "root"); serializer.endDocument(); //write xml data into the FileOutputStream serializer.flush(); serializer = null; //finally we close the file stream outputStream.close(); Log.d("HXMTEST", "+++++ end of creating xml"); }catch (Exception e) { Log.e("Exception","++xml++ error occurred while ending xml file"); } if(mConnectThread != null){ mConnectThread.cancel(); } textview3.setText("the monitoring has been cancelled"); } }); </code></pre> <p>procedure to add nodes:</p> <pre><code>public void AddNodes(String heartBeat, String latitude, String longitude){ //serializer = Xml.newSerializer(); try{ serializer.setOutput(outputStream, "UTF-8"); serializer.startTag(null, "hb"); if(heartBeat != null){ serializer.text(heartBeat); }else{ serializer.text("-1"); } serializer.endTag(null, "hb"); serializer.startTag(null, "latitude"); if(latitude != null){ serializer.text(latitude); }else{ serializer.text("-1"); } serializer.endTag(null, "latitude"); serializer.startTag(null, "longitude"); if(longitude != null){ serializer.text(longitude); }else{ serializer.text("-1"); } serializer.endTag(null, "longitude"); } catch (Exception e) { Log.e("Exception","++xml++ error occurred while adding xml file " +e.toString()); } } </code></pre> <p>it does not throw any exception but create only a bald xml file. i do not know why but when at the function which ends the saving i write <code>serializer.endTag(null, "root");</code> it throws exception array out of bounds. it behaves like it does not save streamly the data.</p> <p><strong>i need something like in objective C is <code>retain</code></strong></p> <p>please help</p>
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