Problems with listview and checkbox event

[Jack Alex]

I'm having problems with what's suppose to be a simple thing to code. I create a list view with two columns: a checkbox and a text view. When the user clicks on the text view, I fire up an intent and when the user clicks on the checkbox (one or more of them) I want to grab the id and show a 'delete this textview' icon in the action bar. I don't understand how to listen for the event when the users checks a checkbox.

This sums up what I'm trying to accomplish


This is my main.xml which contains the List View:
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" > <ListView android:id="@android:id/list" android:layout_width="fill_parent" android:layout_height="fill_parent" > </ListView> </LinearLayout>

The custom layout which is used to display the checkbox and the textview in the listview (msg.xml):
<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" > <LinearLayout android:id="@+id/linearLayout1" android:layout_width="wrap_content" android:layout_height="fill_parent" android:layout_alignParentLeft="true" android:layout_alignParentTop="true" > <CheckBox android:id="@+id/deleteMessage" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center_vertical" android:focusable="false" /> </LinearLayout> <LinearLayout android:id="@+id/linearLayout2" android:layout_width="wrap_content" android:layout_height="fill_parent" android:layout_alignParentRight="true" android:layout_alignParentTop="true" android:layout_toRightOf="@+id/linearLayout1" > <TextView android:id="@+id/message" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="10dp" android:gravity="center_vertical" android:paddingBottom="2dp" android:paddingTop="2dp" android:textSize="22dp" /> </LinearLayout> </RelativeLayout>

Main class:

import android.app.ListActivity;
import android.app.LoaderManager.LoaderCallbacks;
import android.content.Context;
import android.content.CursorLoader;
import android.content.Intent;
import android.content.Loader;
import android.database.Cursor;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.CheckBox;
import android.widget.ListView;
import android.widget.SimpleCursorAdapter;
import android.widget.TextView;

public class SimpleNotepad extends ListActivity implements LoaderCallbacks<Cursor> {

	SimpleCursorAdapter mAdapter;

	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);
		getListView().setDividerHeight(1);
		
		String[] from = new String[] { SimpleDb.TABLE_TITLE };
		int[] to = new int[] { R.id.message };

		mAdapter = new SimpleCursorAdapter(this, R.layout.msg, null, from, to, 0);	
		setListAdapter(mAdapter);

		getLoaderManager().initLoader(0, null, this);
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		MenuInflater inflater = getMenuInflater();
		inflater.inflate(R.menu.mainmenu, menu);

		return true;
	}

	@Override
	public boolean onOptionsItemSelected(MenuItem item) {
		switch (item.getItemId()) {
		case R.id.newMsg:
			Intent i = new Intent(this, EXActivity.class);
			startActivity(i);

			return true;

		default:
			return super.onOptionsItemSelected(item);
		}
	}

	@Override
	protected void onListItemClick(ListView l, View v, int position, long id) {
             // do something here when a textview in the listview is clicked
	}
	
	public Loader<Cursor> onCreateLoader(int id, Bundle args) {
		String[] projection = { SimpleDb.TABLE_ID,
				SimpleDb.TABLE_TITLE };

		CursorLoader c = new CursorLoader(this,
				SimpleProvider.CONTENT_URI, projection, null, null, null);
		return c;
	}

	public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
		mAdapter.swapCursor(data);
	}

	public void onLoaderReset(Loader<Cursor> loader) {
		mAdapter.swapCursor(null);
	}
}

If anyone can help I would be very grateful, I've been struggling with this for 2 days now.

[Mohan Prasath]

The following code is a sample for CheckBox on Checked Event.

CheckBox box = (CheckBox) findViewById(R.id.checkBox1);
box.setOnCheckedChangeListener(new OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if(isChecked){
// Your Logic here
}
}
});

Is this what you are looking for ?.