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copied!<p>Below Snippet does exactly what you want.</p> <pre><code>package com.windrealm.android; import java.util.ArrayList; import java.util.Arrays; import java.util.List; import android.app.Activity; import android.content.Context; import android.os.Bundle; import android.view.LayoutInflater; import android.view.View; import android.view.View.OnClickListener; import android.view.ViewGroup; import android.widget.AdapterView; import android.widget.ArrayAdapter; import android.widget.Button; import android.widget.CheckBox; import android.widget.ListView; import android.widget.TextView; import android.widget.Toast; public class PlanetsActivity extends Activity { private ListView mainListView; private Planet[] planets; private ArrayAdapter<Planet> listAdapter; private Button check; private Context context; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); context = PlanetsActivity.this; check = (Button) findViewById(R.id.check); // Find the ListView resource. mainListView = (ListView) findViewById(R.id.mainListView); // When item is tapped, toggle checked properties of CheckBox and // Planet. mainListView .setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView<?> parent, View item, int position, long id) { Planet planet = listAdapter.getItem(position); planet.toggleChecked(); PlanetViewHolder viewHolder = (PlanetViewHolder) item .getTag(); viewHolder.getCheckBox().setChecked(planet.isChecked()); } }); // Create and populate planets. planets = (Planet[]) getLastNonConfigurationInstance(); if (planets == null) { planets = new Planet[] { new Planet("Mercury"), new Planet("Venus"), new Planet("Earth"), new Planet("Mars"), new Planet("Jupiter"), new Planet("Saturn"), new Planet("Uranus"), new Planet("Neptune"), new Planet("Ceres"), new Planet("Pluto"), new Planet("Haumea"), new Planet("Makemake"), new Planet("Eris") }; } ArrayList<Planet> planetList = new ArrayList<Planet>(); planetList.addAll(Arrays.asList(planets)); // Set our custom array adapter as the ListView's adapter. listAdapter = new PlanetArrayAdapter(this, planetList); mainListView.setAdapter(listAdapter); check.setOnClickListener(new OnClickListener() { @Override public void onClick(View view) { for (int i = 0; i < listAdapter.getCount(); i++) { Planet planet = listAdapter.getItem(i); if (planet.isChecked()) { Toast.makeText(context, planet.getName() + " is Checked!!", Toast.LENGTH_SHORT).show(); } } } }); } /** Holds planet data. */ private static class Planet { private String name = ""; private boolean checked = false; public Planet() { } public Planet(String name) { this.name = name; } public Planet(String name, boolean checked) { this.name = name; this.checked = checked; } public String getName() { return name; } public void setName(String name) { this.name = name; } public boolean isChecked() { return checked; } public void setChecked(boolean checked) { this.checked = checked; } public String toString() { return name; } public void toggleChecked() { checked = !checked; } } /** Holds child views for one row. */ private static class PlanetViewHolder { private CheckBox checkBox; private TextView textView; public PlanetViewHolder() { } public PlanetViewHolder(TextView textView, CheckBox checkBox) { this.checkBox = checkBox; this.textView = textView; } public CheckBox getCheckBox() { return checkBox; } public void setCheckBox(CheckBox checkBox) { this.checkBox = checkBox; } public TextView getTextView() { return textView; } public void setTextView(TextView textView) { this.textView = textView; } } /** Custom adapter for displaying an array of Planet objects. */ private static class PlanetArrayAdapter extends ArrayAdapter<Planet> { private LayoutInflater inflater; public PlanetArrayAdapter(Context context, List<Planet> planetList) { super(context, R.layout.simplerow, R.id.rowTextView, planetList); // Cache the LayoutInflate to avoid asking for a new one each time. inflater = LayoutInflater.from(context); } @Override public View getView(int position, View convertView, ViewGroup parent) { // Planet to display Planet planet = (Planet) this.getItem(position); // The child views in each row. CheckBox checkBox; TextView textView; // Create a new row view if (convertView == null) { convertView = inflater.inflate(R.layout.simplerow, null); // Find the child views. textView = (TextView) convertView .findViewById(R.id.rowTextView); checkBox = (CheckBox) convertView.findViewById(R.id.CheckBox01); // Optimization: Tag the row with it's child views, so we don't // have to // call findViewById() later when we reuse the row. convertView.setTag(new PlanetViewHolder(textView, checkBox)); // If CheckBox is toggled, update the planet it is tagged with. checkBox.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { CheckBox cb = (CheckBox) v; Planet planet = (Planet) cb.getTag(); planet.setChecked(cb.isChecked()); } }); } // Reuse existing row view else { // Because we use a ViewHolder, we avoid having to call // findViewById(). PlanetViewHolder viewHolder = (PlanetViewHolder) convertView .getTag(); checkBox = viewHolder.getCheckBox(); textView = viewHolder.getTextView(); } // Tag the CheckBox with the Planet it is displaying, so that we can // access the planet in onClick() when the CheckBox is toggled. checkBox.setTag(planet); // Display planet data checkBox.setChecked(planet.isChecked()); textView.setText(planet.getName()); return convertView; } } public Object onRetainNonConfigurationInstance() { return planets; } } </code></pre>

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