Android Open Source - introToDroid4ed Simple Contacts Activity






From Project

Back to project page introToDroid4ed.

License

The source code is released under:

GNU General Public License

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Java Source Code

package com.introtoandroid.simplecontacts;
/*  ww w . j ava  2s.  c o m*/

import android.app.Activity;
import android.support.v4.content.CursorLoader;
import android.database.Cursor;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.util.Log;
import android.view.View;

public class SimpleContactsActivity extends Activity {
    
  public static final String DEBUG_TAG = "SimpleContactsActivity";
  
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);        
    }
  
    public void listContact(View v) {
      String[] requestedColumns = {
          ContactsContract.Contacts.DISPLAY_NAME,
          ContactsContract.CommonDataKinds.Phone.NUMBER,
      };
      CursorLoader loader = new CursorLoader(this, 
        ContactsContract.Data.CONTENT_URI, 
        requestedColumns, null,  null, "display_name desc limit 1");
    Cursor contacts = loader.loadInBackground();

    int recordCount = contacts.getCount();
    Log.d(DEBUG_TAG, "Record Count: " + recordCount);
    
    if(recordCount > 0) {
      int nameIdx = contacts
            .getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME);
        int phoneIdx = contacts
            .getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER);
        
        contacts.moveToFirst();
        Log.d(DEBUG_TAG, "Name: " + contacts.getString(nameIdx));
        Log.d(DEBUG_TAG, "Phone: " + contacts.getString(phoneIdx));
    }
    }
}




Java Source Code List

com.introtoandroid.advancedlayouts.AdaptersActivity.java
com.introtoandroid.advancedlayouts.AdvancedLayoutsActivity.java
com.introtoandroid.advancedlayouts.BasicLayoutActivity.java
com.introtoandroid.advancedlayouts.ContactAdapterActivity.java
com.introtoandroid.advancedlayouts.DialogActivity.java
com.introtoandroid.advancedlayouts.GridAdapterSampleActivity.java
com.introtoandroid.advancedlayouts.GridLayoutActivity.java
com.introtoandroid.advancedlayouts.GridListMenuActivity.java
com.introtoandroid.advancedlayouts.ListAdapterSampleActivity.java
com.introtoandroid.advancedlayouts.MenuActivity.java
com.introtoandroid.advancedlayouts.MyListActivity.java
com.introtoandroid.advancedlayouts.StyleSamplesActivity.java
com.introtoandroid.filesoc.FileStreamOfConsciousnessActivity.java
com.introtoandroid.filesoc.ViewLogActivity.java
com.introtoandroid.myfirstandroidapp.MyFirstAndroidAppActivity.java
com.introtoandroid.navigation.FirstChildActivity.java
com.introtoandroid.navigation.ParentActivity.java
com.introtoandroid.navigation.SecondChildActivity.java
com.introtoandroid.navigation.ThirdChildActivity.java
com.introtoandroid.parisview.ParisViewActivity.java
com.introtoandroid.passwordmatcher.PasswordMatcherActivity.java
com.introtoandroid.resourceroundup.ResourceRoundupActivity.java
com.introtoandroid.samelayout.MenuActivity.java
com.introtoandroid.samelayout.ProgrammaticLayoutActivity.java
com.introtoandroid.samelayout.ResourceLayoutActivity.java
com.introtoandroid.samelayout.SameLayoutActivity.java
com.introtoandroid.simpleactionbar.SimpleActionBarActivity.java
com.introtoandroid.simplealtresources.SimpleAltResourcesActivity.java
com.introtoandroid.simplecontacts.SimpleContactsActivity.java
com.introtoandroid.simplecontentprovider.MenuActivity.java
com.introtoandroid.simplecontentprovider.SimpleBookmarks.java
com.introtoandroid.simplecontentprovider.SimpleCallLog.java
com.introtoandroid.simplecontentprovider.SimpleContentProviderMenuActivity.java
com.introtoandroid.simplecontentprovider.SimpleMediaStore.java
com.introtoandroid.simplefiles.SimpleFilesActivity.java
com.introtoandroid.simplefragdialogs.SimpleFragDialogActivity.java
com.introtoandroid.simplefragments.FieldNoteListFragment.java
com.introtoandroid.simplefragments.FieldNoteViewActivity.java
com.introtoandroid.simplefragments.FieldNoteWebViewFragment.java
com.introtoandroid.simplefragments.SimpleFragmentsActivity.java
com.introtoandroid.simplelayout.FrameLayoutActivity.java
com.introtoandroid.simplelayout.GridLayoutActivity.java
com.introtoandroid.simplelayout.LinearLayoutActivity.java
com.introtoandroid.simplelayout.MenuActivity.java
com.introtoandroid.simplelayout.MultipleLayoutActivity.java
com.introtoandroid.simplelayout.RelativeLayoutActivity.java
com.introtoandroid.simplelayout.SimpleLayoutActivity.java
com.introtoandroid.simplelayout.TableLayoutActivity.java
com.introtoandroid.simplemultimedia.AudioActivity.java
com.introtoandroid.simplemultimedia.MenuActivity.java
com.introtoandroid.simplemultimedia.SimpleMultimediaActivity.java
com.introtoandroid.simplemultimedia.StillImageActivity.java
com.introtoandroid.simplemultimedia.VideoPlayActivity.java
com.introtoandroid.simplepreferences.MoreSimplePreferencesActivity.java
com.introtoandroid.simplepreferences.SimplePreferencesActivity.java
com.introtoandroid.simplepreferences.SuperSimplePreferencesActivity.java
com.introtoandroid.simpleresourceview.SimpleResourceViewActivity.java
com.introtoandroid.simplescrolling.BothScrollActivity.java
com.introtoandroid.simplescrolling.HorizontalScrollActivity.java
com.introtoandroid.simplescrolling.MenuActivity.java
com.introtoandroid.simplescrolling.NoScrollActivity.java
com.introtoandroid.simplescrolling.SimpleScrollingActivity.java
com.introtoandroid.simplescrolling.VerticalScrollActivity.java
com.introtoandroid.simpleuserprefs.SimpleUserPrefsActivity.java
com.introtoandroid.supportfragdialog.MyAlertDialogFragment.java
com.introtoandroid.supportfragdialog.SupportFragDialogActivity.java
com.introtoandroid.userprefsheaders.UserPrefsActivity.java
com.introtoandroid.viewsamples.ButtonsActivity.java
com.introtoandroid.viewsamples.ContainersActivity.java
com.introtoandroid.viewsamples.EventsActivity.java
com.introtoandroid.viewsamples.FormsActivity.java
com.introtoandroid.viewsamples.IndicatorsActivity.java
com.introtoandroid.viewsamples.MenuActivity.java
com.introtoandroid.viewsamples.PickersActivity.java
com.introtoandroid.viewsamples.TextDisplayActivity.java
com.introtoandroid.viewsamples.TextInputActivity.java
com.introtoandroid.viewsamples.ViewSampleActivity.java