Multi-column ListActivity

   
package app.test;

import android.app.ListActivity;
import android.database.Cursor;
import android.os.Bundle;
import android.provider.Contacts.People;
import android.util.Log;
import android.util.SparseBooleanArray;
import android.view.View;
import android.widget.ListView;
import android.widget.SimpleCursorAdapter;

public class Test extends ListActivity
{
    private static final String TAG = "ListViewActivity3";
    private ListView lv = null;
    private Cursor cursor = null;
    private int idCol = -1;
    private int nameCol = -1;
    private int notesCol = -1;

    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        lv = getListView();
        
        cursor = managedQuery(People.CONTENT_URI, 
                        null, null, null, People.NAME);

        String[] cols = new String[]{People.NAME};
        idCol = cursor.getColumnIndex(People._ID);
        nameCol = cursor.getColumnIndex(People.NAME);
        notesCol = cursor.getColumnIndex(People.NOTES);
        
        int[] views = new int[]{android.R.id.text1};
        
        SimpleCursorAdapter adapter = new SimpleCursorAdapter(this,
            android.R.layout.simple_list_item_multiple_choice,
            cursor, cols, views);
        
        this.setListAdapter(adapter);
        
        lv.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
    }
    
    public void doClick(View view) {
        int count=lv.getCount();
        SparseBooleanArray viewItems = lv.getCheckedItemPositions();
        for(int i=0; i<count; i++) {
          if(viewItems.get(i)) {
            cursor.moveToPosition(i);
            long id = cursor.getLong(idCol);
            String name = cursor.getString(nameCol);
            String notes = cursor.getString(notesCol);
            Log.v(TAG, name + " is checked. Notes: " + notes +
                ". Position = " + i + ". Id = " + id);
          }
        }
    }
}
//main.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- This file is at /res/layout/list.xml -->
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"  android:layout_height="fill_parent">

    <ListView android:id="@android:id/list"
        android:layout_width="fill_parent"  android:layout_height="0dip"
        android:layout_weight="1" />

    <Button android:id="@+id/btn" android:onClick="doClick"
     android:layout_width="wrap_content"  android:layout_height="wrap_content"
     android:text="Submit Selection" />

</LinearLayout>

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Multi-column ListActivity : ListActivity « UI « Android

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