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POPassing value of item clicked in list view from one screen to another in android
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  1. POPassing value of item clicked in list view from one screen to another in android
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    copied!<p>I am trying to send the item clicked in list to another screen but getting an error... </p> <p>Heres my main file...</p> <pre><code>package com.bmc; import java.util.ArrayList; import java.util.HashMap; import org.w3c.dom.Document; import org.w3c.dom.Element; import org.w3c.dom.NodeList; import android.app.ListActivity; import android.content.Context; import android.content.Intent; import android.os.Bundle; import android.view.View; import android.widget.AdapterView; import android.widget.AdapterView.AdapterContextMenuInfo; import android.widget.AdapterView.OnItemClickListener; import android.widget.ListAdapter; import android.widget.ListView; import android.widget.SimpleAdapter; import android.widget.Toast; public class Main extends ListActivity { /** Called when the activity is first created. */ private Context mCtx; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.myrequest); mCtx = this; ArrayList&lt;HashMap&lt;String, String&gt;&gt; mylist = new ArrayList&lt;HashMap&lt;String, String&gt;&gt;(); String xml = XMLfunctions.getXML("http://10.0.2.2/ss.htm"); Document doc = XMLfunctions.XMLfromString(xml); int numResults = XMLfunctions.numResults(doc); if((numResults &lt;= 0)){ Toast.makeText(Main.this, "Error", Toast.LENGTH_LONG).show(); finish(); } NodeList nodes = doc.getElementsByTagName("result"); for (int i = 0; i &lt; nodes.getLength(); i++) { HashMap&lt;String, String&gt; map = new HashMap&lt;String, String&gt;(); Element e = (Element)nodes.item(i); map.put("id", XMLfunctions.getValue(e, "id")); map.put("name", XMLfunctions.getValue(e, "id") + "-" + XMLfunctions.getValue(e, "name") + " :"); mylist.add(map); } ListAdapter adapter = new SimpleAdapter(this, mylist , R.layout.main, new String[] { "name"}, new int[] { R.id.item_title }); setListAdapter(adapter); final ListView lv = getListView(); lv.setTextFilterEnabled(true); lv.setOnItemClickListener(new OnItemClickListener() { public void onItemClick(AdapterView&lt;?&gt; parent, View view, int position, long id) { @SuppressWarnings("unchecked") HashMap&lt;String, String&gt; o = (HashMap&lt;String, String&gt;) lv.getItemAtPosition(position); Toast.makeText(Main.this, "ID '" + o.get("id") + "' was clicked.", Toast.LENGTH_LONG).show(); String selectedFromList = (String) (lv.getItemAtPosition(position)); Intent i = new Intent(mCtx, Details.class); Bundle extras=new Bundle(); extras.putSerializable("obj_to_pass", selectedFromList); i.putExtras(extras); startActivity(i); // Main.this.finish(); } }); } } </code></pre> <p>Heres my Details.java file...</p> <pre><code>package com.bmc; import android.app.Activity; import android.os.Bundle; import android.widget.EditText; public class Details extends Activity { public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.details); EditText txt; Bundle extras = getIntent().getExtras(); Object my_obj = extras.getSerializable("obj_to_pass"); txt=(EditText) findViewById(R.id.editText_desc1); txt.setText((CharSequence) my_obj); } } </code></pre> <p>Log file...</p> <pre><code>12-27 01:46:55.994: E/AndroidRuntime(311): FATAL EXCEPTION: main 12-27 01:46:55.994: E/AndroidRuntime(311): java.lang.ClassCastException: java.util.HashMap 12-27 01:46:55.994: E/AndroidRuntime(311): at com.bmc.Main$1.onItemClick(Main.java:73) 12-27 01:46:55.994: E/AndroidRuntime(311): at android.widget.AdapterView.performItemClick(AdapterView.java:284) 12-27 01:46:55.994: E/AndroidRuntime(311): at android.widget.ListView.performItemClick(ListView.java:3382) 12-27 01:46:55.994: E/AndroidRuntime(311): at android.widget.AbsListView$PerformClick.run(AbsListView.java:1696) 12-27 01:46:55.994: E/AndroidRuntime(311): at android.os.Handler.handleCallback(Handler.java:587) 12-27 01:46:55.994: E/AndroidRuntime(311): at android.os.Handler.dispatchMessage(Handler.java:92) 12-27 01:46:55.994: E/AndroidRuntime(311): at android.os.Looper.loop(Looper.java:123) 12-27 01:46:55.994: E/AndroidRuntime(311): at android.app.ActivityThread.main(ActivityThread.java:4627) 12-27 01:46:55.994: E/AndroidRuntime(311): at java.lang.reflect.Method.invokeNative(Native Method) 12-27 01:46:55.994: E/AndroidRuntime(311): at java.lang.reflect.Method.invoke(Method.java:521) 12-27 01:46:55.994: E/AndroidRuntime(311): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868) 12-27 01:46:55.994: E/AndroidRuntime(311): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626) 12-27 01:46:55.994: E/AndroidRuntime(311): at dalvik.system.NativeStart.main(Native Method) </code></pre> <p>After running above project am getting error and msg box with option "Force Close"... So if anyone has solution then help...!!! thanx..!!</p>
 

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