title: XMLparser - unfortunately application stopped working
body: <p>I have problem when I run my android app (v 4.0.3) my app stopped working. It is basically XML parsing app</p>
  
  <p>here is mainactivity</p>
  
  <pre><code>    package cz.jiri.podlipny.weather_design;
  
  import java.io.IOException;
  import java.net.MalformedURLException;
  import java.net.URL;
  
  import javax.xml.parsers.ParserConfigurationException;
  import javax.xml.parsers.SAXParser;
  import javax.xml.parsers.SAXParserFactory;
  
  import org.xml.sax.InputSource;
  import org.xml.sax.SAXException;
  import org.xml.sax.XMLReader;
  
  import android.os.AsyncTask;
  import android.os.Bundle;
  import android.app.Activity;
  import android.view.Menu;
  import android.view.View;
  import android.widget.TextView;
  
  
  public class MainActivity extends Activity {
  
      @Override
      protected void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          setContentView(R.layout.activity_main);
          //new Stahni().execute();
  
      }
  
  
      @Override
      public boolean onCreateOptionsMenu(Menu menu) {
          getMenuInflater().inflate(R.menu.main, menu);
          return true;
      }
  
  private class Stahni extends AsyncTask&lt;Void, Void, ParserXMLObject&gt;{
  
          @Override
          protected ParserXMLObject doInBackground(Void... params){
              ParserXMLObject XMLdata = null;
              try {
                  URL url = new URL("http://www.anddev.org/images/tut/basic/parsingxml/example.xml");
                  //dostane SAXparser ze SUXFactory
                  SAXParserFactory spf = SAXParserFactory.newInstance();
                  SAXParser sp = spf.newSAXParser();
  
                  //Načte XML ze SAX parseru
                  XMLReader xr = sp.getXMLReader();
  
                  //vytvoříme obsluhu handle k XML
                  XMLHandler xmlHandle = new XMLHandler();
                  xr.setContentHandler(xmlHandle);
  
                  //postará se o parsování dat z XML
                  xr.parse(new InputSource(url.openStream()));
  
                  //samotná XMLdata
                  XMLdata = xmlHandle.getParsedData();
              } catch (MalformedURLException e) {
                  e.printStackTrace();
              } catch (ParserConfigurationException e) {
                  //parser catch
                  e.printStackTrace();
              } catch (SAXException e) {
                  // SAX exception
                  e.printStackTrace();
              } catch (IOException e) {
                  // IOException z openStreamu
                  e.printStackTrace();
              }
              return XMLdata;
  
          }
  
          protected void onPostExecute(ParserXMLObject xmldata){
              TextView teplota = (TextView) findViewById(R.id.CurTemp);
              teplota.setText(xmldata.toString());
          }
  
      }
  
  public void kliknuto(View v){
      new Stahni().execute(); 
  }
  
  
  }
  </code></pre>
  
  <p>here is parserXML object</p>
  
  <pre><code>    package cz.jiri.podlipny.weather_design;
  
  public class ParserXMLObject {
      /*
       * z XML dat vytváří objekt se kterým se dále pracuje
       */
      private String extractedString = null;
      private int extractedInt = 0;
  
      public String getExtractedString() {
              return extractedString;
      }
      public void setExtractedString(String extractedString) {
              this.extractedString = extractedString;
      }
  
      public int getExtractedInt() {
              return extractedInt;
      }
      public void setExtractedInt(int extractedInt) {
              this.extractedInt = extractedInt;
      }
  
      public String toString(){
              return "ExtractedString = " + this.extractedString
                              + "nExtractedInt = " + this.extractedInt;
      }
  }
  </code></pre>
  
  <p>and here is handlerer for parsing</p>
  
  <pre><code>    package cz.jiri.podlipny.weather_design;
  
  import java.util.jar.Attributes;
  
  import org.xml.sax.SAXException;
  import org.xml.sax.helpers.DefaultHandler;
  
  public class XMLHandler extends DefaultHandler {
      // ===========================================================
      // Fields
      // ===========================================================
  
      private boolean in_outertag = false;
      private boolean in_innertag = false;
      private boolean in_mytag = false;
  
      private ParserXMLObject myParsedExampleDataSet = new ParserXMLObject();
  
      // ===========================================================
      // Getter &amp; Setter
      // ===========================================================
  
      public ParserXMLObject getParsedData() {
              return this.myParsedExampleDataSet;
      }
  
      // ===========================================================
      // Methods
      // ===========================================================
      @Override
      public void startDocument() throws SAXException {
              this.myParsedExampleDataSet = new ParserXMLObject();
      }
  
      @Override
      public void endDocument() throws SAXException {
              // Nothing to do
      }
  
      /** Gets be called on opening tags like:
       * &lt;tag&gt;
       * Can provide attribute(s), when xml was like:
      public void startElement(String namespaceURI, String localName,
                      String qName, Attributes atts) throws SAXException {
              if (localName.equals("outertag")) {
                      this.in_outertag = true;
              }else if (localName.equals("innertag")) {
                      this.in_innertag = true;
              }else if (localName.equals("mytag")) {
                      this.in_mytag = true;
              }else if (localName.equals("tagwithnumber")) {
                      // Extract an Attribute
                      String attrValue = atts.getValue("thenumber");
                      int i = Integer.parseInt(attrValue);
                      myParsedExampleDataSet.setExtractedInt(i);
              }
      }
  
      /** Gets be called on closing tags like:
       * &lt;/tag&gt; */
      @Override
      public void endElement(String namespaceURI, String localName, String qName)
                      throws SAXException {
              if (localName.equals("outertag")) {
                      this.in_outertag = false;
              }else if (localName.equals("innertag")) {
                      this.in_innertag = false;
              }else if (localName.equals("mytag")) {
                      this.in_mytag = false;
              }else if (localName.equals("tagwithnumber")) {
                      // Nothing to do here
              }
      }
  
      /** Gets be called on the following structure:
       * &lt;tag&gt;characters&lt;/tag&gt; */
      @Override
  public void characters(char ch[], int start, int length) {
              if(this.in_mytag){
              myParsedExampleDataSet.setExtractedString(new String(ch, start, length));
      }
  }
  }
  </code></pre>
  
  <p>HERE IS LOGCAT:</p>
  
  <pre><code>04-11 12:40:48.773: I/Adreno200-EGLSUB(25887): &lt;ConfigWindowMatch:2078&gt;: Format RGBA_8888.
  04-11 12:40:48.783: D/memalloc(25887): /dev/pmem: Mapped buffer base:0x4b966000 size:1536000 offset:0 fd:53
  04-11 12:40:48.893: D/memalloc(25887): /dev/pmem: Mapped buffer base:0x4bde7000 size:9154560 offset:7618560 fd:56
  04-11 12:40:51.553: D/memalloc(25887): /dev/pmem: Mapped buffer base:0x4c81c000 size:7557120 offset:6021120 fd:59
  04-11 12:40:51.593: W/dalvikvm(25887): threadid=1: thread exiting with uncaught exception (group=0x40c5d1f8)
  04-11 12:40:51.603: E/AndroidRuntime(25887): FATAL EXCEPTION: main
  04-11 12:40:51.603: E/AndroidRuntime(25887): java.lang.IllegalStateException: Could not find a method Kliknuto(View) in the activity class cz.jiri.podlipny.weather_design.MainActivity for onClick handler on view class android.widget.Button with id 'button1'
  04-11 12:40:51.603: E/AndroidRuntime(25887):    at android.view.View$1.onClick(View.java:3039)
  04-11 12:40:51.603: E/AndroidRuntime(25887):    at android.view.View.performClick(View.java:3519)
  04-11 12:40:51.603: E/AndroidRuntime(25887):    at android.view.View$PerformClick.run(View.java:14140)
  04-11 12:40:51.603: E/AndroidRuntime(25887):    at android.os.Handler.handleCallback(Handler.java:605)
  04-11 12:40:51.603: E/AndroidRuntime(25887):    at android.os.Handler.dispatchMessage(Handler.java:92)
  04-11 12:40:51.603: E/AndroidRuntime(25887):    at android.os.Looper.loop(Looper.java:137)
  04-11 12:40:51.603: E/AndroidRuntime(25887):    at android.app.ActivityThread.main(ActivityThread.java:4424)
  04-11 12:40:51.603: E/AndroidRuntime(25887):    at java.lang.reflect.Method.invokeNative(Native Method)
  04-11 12:40:51.603: E/AndroidRuntime(25887):    at java.lang.reflect.Method.invoke(Method.java:511)
  04-11 12:40:51.603: E/AndroidRuntime(25887):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:787)
  04-11 12:40:51.603: E/AndroidRuntime(25887):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:554)
  04-11 12:40:51.603: E/AndroidRuntime(25887):    at dalvik.system.NativeStart.main(Native Method)
  04-11 12:40:51.603: E/AndroidRuntime(25887): Caused by: java.lang.NoSuchMethodException: Kliknuto [class android.view.View]
  04-11 12:40:51.603: E/AndroidRuntime(25887):    at java.lang.Class.getConstructorOrMethod(Class.java:460)
  04-11 12:40:51.603: E/AndroidRuntime(25887):    at java.lang.Class.getMethod(Class.java:915)
  04-11 12:40:51.603: E/AndroidRuntime(25887):    at android.view.View$1.onClick(View.java:3032)
  04-11 12:40:51.603: E/AndroidRuntime(25887):    ... 11 more
  04-11 12:42:34.123: I/Adreno200-EGLSUB(25988): &lt;ConfigWindowMatch:2078&gt;: Format RGBA_8888.
  04-11 12:42:34.163: D/memalloc(25988): /dev/pmem: Mapped buffer base:0x4bac1000 size:9154560 offset:7618560 fd:53
  04-11 12:42:34.283: D/memalloc(25988): /dev/pmem: Mapped buffer base:0x4c4bc000 size:1536000 offset:0 fd:56
  04-11 12:42:35.333: D/memalloc(25988): /dev/pmem: Mapped buffer base:0x4c79e000 size:7557120 offset:6021120 fd:59
  04-11 12:42:35.353: W/dalvikvm(25988): threadid=1: thread exiting with uncaught exception (group=0x40c5d1f8)
  04-11 12:42:35.363: E/AndroidRuntime(25988): FATAL EXCEPTION: main
  04-11 12:42:35.363: E/AndroidRuntime(25988): java.lang.IllegalStateException: Could not find a method Kliknuto(View) in the activity class cz.jiri.podlipny.weather_design.MainActivity for onClick handler on view class android.widget.Button with id 'button1'
  04-11 12:42:35.363: E/AndroidRuntime(25988):    at android.view.View$1.onClick(View.java:3039)
  04-11 12:42:35.363: E/AndroidRuntime(25988):    at android.view.View.performClick(View.java:3519)
  04-11 12:42:35.363: E/AndroidRuntime(25988):    at android.view.View$PerformClick.run(View.java:14140)
  04-11 12:42:35.363: E/AndroidRuntime(25988):    at android.os.Handler.handleCallback(Handler.java:605)
  04-11 12:42:35.363: E/AndroidRuntime(25988):    at android.os.Handler.dispatchMessage(Handler.java:92)
  04-11 12:42:35.363: E/AndroidRuntime(25988):    at android.os.Looper.loop(Looper.java:137)
  04-11 12:42:35.363: E/AndroidRuntime(25988):    at android.app.ActivityThread.main(ActivityThread.java:4424)
  04-11 12:42:35.363: E/AndroidRuntime(25988):    at java.lang.reflect.Method.invokeNative(Native Method)
  04-11 12:42:35.363: E/AndroidRuntime(25988):    at java.lang.reflect.Method.invoke(Method.java:511)
  04-11 12:42:35.363: E/AndroidRuntime(25988):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:787)
  04-11 12:42:35.363: E/AndroidRuntime(25988):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:554)
  04-11 12:42:35.363: E/AndroidRuntime(25988):    at dalvik.system.NativeStart.main(Native Method)
  04-11 12:42:35.363: E/AndroidRuntime(25988): Caused by: java.lang.NoSuchMethodException: Kliknuto [class android.view.View]
  04-11 12:42:35.363: E/AndroidRuntime(25988):    at java.lang.Class.getConstructorOrMethod(Class.java:460)
  04-11 12:42:35.363: E/AndroidRuntime(25988):    at java.lang.Class.getMethod(Class.java:915)
  04-11 12:42:35.363: E/AndroidRuntime(25988):    at android.view.View$1.onClick(View.java:3032)
  04-11 12:42:35.363: E/AndroidRuntime(25988):    ... 11 more
  04-11 13:14:30.589: I/Adreno200-EGLSUB(26277): &lt;ConfigWindowMatch:2078&gt;: Format RGBA_8888.
  04-11 13:14:30.609: D/memalloc(26277): /dev/pmem: Mapped buffer base:0x4ba23000 size:1536000 offset:0 fd:53
  04-11 13:14:30.719: D/memalloc(26277): /dev/pmem: Mapped buffer base:0x4be17000 size:7557120 offset:6021120 fd:56
  04-11 13:14:32.039: D/memalloc(26277): /dev/pmem: Mapped buffer base:0x4c680000 size:9154560 offset:7618560 fd:59
  04-11 13:14:32.069: W/dalvikvm(26277): threadid=1: thread exiting with uncaught exception (group=0x40c5d1f8)
  04-11 13:14:32.079: E/AndroidRuntime(26277): FATAL EXCEPTION: main
  04-11 13:14:32.079: E/AndroidRuntime(26277): java.lang.IllegalStateException: Could not find a method Kliknuto(View) in the activity class cz.jiri.podlipny.weather_design.MainActivity for onClick handler on view class android.widget.Button with id 'button1'
  04-11 13:14:32.079: E/AndroidRuntime(26277):    at android.view.View$1.onClick(View.java:3039)
  04-11 13:14:32.079: E/AndroidRuntime(26277):    at android.view.View.performClick(View.java:3519)
  04-11 13:14:32.079: E/AndroidRuntime(26277):    at android.view.View$PerformClick.run(View.java:14140)
  04-11 13:14:32.079: E/AndroidRuntime(26277):    at android.os.Handler.handleCallback(Handler.java:605)
  04-11 13:14:32.079: E/AndroidRuntime(26277):    at android.os.Handler.dispatchMessage(Handler.java:92)
  04-11 13:14:32.079: E/AndroidRuntime(26277):    at android.os.Looper.loop(Looper.java:137)
  04-11 13:14:32.079: E/AndroidRuntime(26277):    at android.app.ActivityThread.main(ActivityThread.java:4424)
  04-11 13:14:32.079: E/AndroidRuntime(26277):    at java.lang.reflect.Method.invokeNative(Native Method)
  04-11 13:14:32.079: E/AndroidRuntime(26277):    at java.lang.reflect.Method.invoke(Method.java:511)
  04-11 13:14:32.079: E/AndroidRuntime(26277):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:787)
  04-11 13:14:32.079: E/AndroidRuntime(26277):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:554)
  04-11 13:14:32.079: E/AndroidRuntime(26277):    at dalvik.system.NativeStart.main(Native Method)
  04-11 13:14:32.079: E/AndroidRuntime(26277): Caused by: java.lang.NoSuchMethodException: Kliknuto [class android.view.View]
  04-11 13:14:32.079: E/AndroidRuntime(26277):    at java.lang.Class.getConstructorOrMethod(Class.java:460)
  04-11 13:14:32.079: E/AndroidRuntime(26277):    at java.lang.Class.getMethod(Class.java:915)
  04-11 13:14:32.079: E/AndroidRuntime(26277):    at android.view.View$1.onClick(View.java:3032)
  04-11 13:14:32.079: E/AndroidRuntime(26277):    ... 11 more
  </code></pre>