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POCaused by: android.view.ViewRootImpl$CalledFromWrongThreadException: Only the original thread that created a view hierarchy can touch its views
 

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  1. POCaused by: android.view.ViewRootImpl$CalledFromWrongThreadException: Only the original thread that created a view hierarchy can touch its views
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    <p>I am trying to write a program to parse the given xml. However, it throws that error message:"<strong>Caused by: android.view.ViewRootImpl$CalledFromWrongThreadException: Only the original thread that created a view hierarchy can touch its views.</strong> " This is my code </p> <pre><code> package com.example.xmlparserdeneme; import java.io.IOException; import java.util.ArrayList; import javax.xml.parsers.ParserConfigurationException; import javax.xml.parsers.SAXParser; import javax.xml.parsers.SAXParserFactory; import org.xml.sax.Attributes; import org.xml.sax.SAXException; import org.xml.sax.helpers.DefaultHandler; import android.app.Activity; import android.content.Context; import android.os.AsyncTask; import android.os.Bundle; import android.util.Log; import android.view.Menu; import android.widget.ListView; public class MainActivity extends Activity { ArrayList&lt;String&gt; titles = new ArrayList&lt;String&gt;(); Context ctx = this; CustomAdapter adapter = null; ListView lv; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); ((Activity) ctx).setContentView(R.layout.activity_main); new parseXML().execute(); Log.i("info2", titles.toString()); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu); return true; } class parseXML extends AsyncTask&lt;String, Void, String&gt; { MySaxHandler handler; @Override protected String doInBackground(String... params) { SAXParserFactory spf = SAXParserFactory.newInstance(); SAXParser parser = null; try { parser = spf.newSAXParser(); } catch (ParserConfigurationException e) { e.printStackTrace(); } catch (SAXException e) { e.printStackTrace(); } handler = new MySaxHandler(); try { parser.parse( "/xmlParserDeneme/src/Database.xml", handler); } catch (SAXException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } Log.i("info", titles.toString()); return "a"; } @Override protected void onPostExecute(String result) { lv = (ListView) findViewById(R.id.listView); lv.setAdapter(new CustomAdapter(titles, ctx)); } public ArrayList&lt;String&gt; getArray() { return titles; } public class MySaxHandler extends DefaultHandler { StringBuffer chars; public void startElement(String uri, String localName, String qName, Attributes atts) { chars = new StringBuffer(); } public void endElement(String uri, String localName, String qName) throws SAXException { if (localName.equalsIgnoreCase("description")) titles.add(chars.toString()); } public void characters(char ch[], int start, int length) { chars.append(new String(ch, start, length)); } } } } </code></pre> <p>I am new at android, I don't know where to change. I'd be appreciated if anyone tell me how to fix it?</p>
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    1. USanilbey
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      1. POCaused by: android.view.ViewRootImpl$CalledFromWrongThreadException: Only the original thread that created a view hierarchy can touch its views
      1. USanilbey
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    1. COthis happen when you update ui from another thread. Also remove this `((Activity) ctx).setContentView(R.layout.activity_main)`.
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      1. USRaghunandan
    2. COalso what is this `"/xmlParserDeneme/src/Database.xml"` where is your Database.xml?
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      1. USRaghunandan
    3. CO@Raghunandan, my database is a plist file.
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      1. USanilbey
 

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