Android Open Source - introToDroid4ed Contact Adapter Activity

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License

The source code is released under:

GNU General Public License

Java Source Code

package com.introtoandroid.advancedlayouts;
// w w  w .  j a  v  a2  s .co  m

import android.app.ListActivity;
import android.content.CursorLoader;
import android.database.Cursor;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.util.Log;
import android.view.View;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.SimpleCursorAdapter;
import android.widget.TextView;

public class ContactAdapterActivity extends ListActivity {
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    String[] requestedColumns = {
        ContactsContract.CommonDataKinds.Phone._ID,
        ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME,
        ContactsContract.CommonDataKinds.Phone.NUMBER,
    };
    CursorLoader loader = new CursorLoader(this, 
        ContactsContract.CommonDataKinds.Phone.CONTENT_URI, 
        requestedColumns, null, null, null);
    Cursor contacts = loader.loadInBackground();
    setContentView(R.layout.contact);
    
    ListAdapter adapter = new SimpleCursorAdapter(this, 
        R.layout.contact_item_simple, 
        contacts, 
        new String[] { 
          ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME 
        }, 
        new int[] { 
          R.id.contact_item_simple_text
        }, 0);
    setListAdapter(adapter);
  }

  /*
   * (non-Javadoc)
   * 
   * @see android.app.ListActivity#onListItemClick(android.widget.ListView,
   * android.view.View, int, long)
   */
  @Override
  protected void onListItemClick(ListView l, View v, int position, long id) {
    Cursor phone = (Cursor) l.getItemAtPosition(position);

    TextView tv = ((TextView) v);
    String name = phone.getString(phone.getColumnIndex(
        ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
    String num = phone.getString(phone.getColumnIndex(
        ContactsContract.CommonDataKinds.Phone.NUMBER));

    String displayed = tv.getText().toString();
    if (displayed.compareTo(name) == 0) {
      tv.setText(num);
    } else {
      tv.setText(name);
    }
    Log.d(AdvancedLayoutsActivity.DEBUG_TAG, "Cursor pos: "  + 
        phone.getPosition() + "== list pos: "  + position);
    Log.d(AdvancedLayoutsActivity.DEBUG_TAG, "Cursor id: " + 
        phone.getString(phone.getColumnIndex(
            ContactsContract.CommonDataKinds.Phone._ID)) + 
            "== list id: " + id);
  }
}

Java Source Code List

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