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Retrieving a List of Contacts android

I want to display the Contact List using Fragment. The number will show on toast when the user selects names from the list.The list will show only name.How can I get the numbers form contact. I went through the android developer training for retrieving a contact list, but the tutorial is incomplete and even downloading the sample code doesn't help because the sample code is for more advanced contact list manipulation (search, etc.)
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
Context context = getActivity();
int layout = android.R.layout.simple_list_item_1;
Cursor c = null; // there is no cursor yet
int flags = 0; // no auto-requery! Loader requeries.
mAdapter = new SimpleCursorAdapter(context, layout, c, FROM, TO, flags);
}
#Override
public void onActivityCreated(Bundle savedInstanceState)
{
super.onActivityCreated(savedInstanceState);
final ListView lv = getListView();
lv.setTextFilterEnabled(true);
lv.setOnItemClickListener(new OnItemClickListener()
{
public void onItemClick(AdapterView<?> parent, View view, int position, long id)
{
Toast.makeText(getActivity(), " Clicked!"
, Toast.LENGTH_SHORT).show();
}
});
// each time we are started use our listadapter
setListAdapter(mAdapter);
// and tell loader manager to start loading
getLoaderManager().initLoader(0, null, this);
}
#SuppressLint("InlinedApi")
private static final String SELECTION = Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB ? Contacts.DISPLAY_NAME_PRIMARY + " LIKE ?" : Contacts.DISPLAY_NAME + " LIKE ?";
private String mSearchString;
private String[] mSelectionArgs = { mSearchString };
private static final String[] PROJECTION =
{
Contacts._ID,
Contacts.LOOKUP_KEY,
Build.VERSION.SDK_INT
>= Build.VERSION_CODES.HONEYCOMB ?
Contacts.DISPLAY_NAME_PRIMARY :
Contacts.DISPLAY_NAME
};
private static final String[] FROM = { Contacts.DISPLAY_NAME_PRIMARY };
private static final int[] TO = { android.R.id.text1 };
#Override
public Loader<Cursor> onCreateLoader(int id, Bundle args)
{
Uri contentUri = Contacts.CONTENT_URI;
return new CursorLoader(getActivity(), Contacts.CONTENT_URI, PROJECTION, null, null, Contacts.DISPLAY_NAME+" ASC");
}
#Override
public void onLoadFinished(Loader<Cursor> loader, Cursor data)
{
mAdapter.swapCursor(data);
}
#Override
public void onLoaderReset(Loader<Cursor> loader)
{
mAdapter.swapCursor(null);
}

How can I get the numbers form contact
I'd start with editing your PROJECTION array and adding HAS_PHONE_NUMBER column to not proceed if there's no phone number associated.
If there's is, then using your contact's ID you can do something like this (note the type constrain, so edit according to your needs):
Cursor cursorPhone = getContentResolver()
.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
new String[]{ ContactsContract.CommonDataKinds.Phone.NUMBER },
ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = ? AND " +
ContactsContract.CommonDataKinds.Phone.TYPE + " = " +
ContactsContract.CommonDataKinds.Phone.TYPE_MOBILE,
new String[]{ contactId },
null);
if (cursorPhone.moveToFirst()) {
contactNumber = cursorPhone.getString(cursorPhone
.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
}
cursorPhone.close();

How to get some informations of a contact by using cursor loader?

I want to get: id, name, phone number and company of all contacts which stored in default contact of the phone. After that, I want to display them into list view.
I use cursor loader to do that. BUT, i have just get id and name of each contact. I CAN NOT get phone number & company. You can see all my code below.
I think I may be wrong at: PROJECTION & SELECTION (?)
What about your opinion?? Could you show me what my error is?
public class MainActivity extends ListActivity implements LoaderManager.LoaderCallbacks<Cursor>{
final Context context = this;
protected Intent intent;
protected TextView contactId;
protected ListView lv;
protected EditText inputSearch;
protected SimpleAdapter adapter;
SimpleCursorAdapter curAdapter;
public MatrixCursor extras;
SimpleCursorAdapter mAdapter;
static final String[] PROJECTION = new String[] {
ContactsContract.Contacts._ID,
ContactsContract.Contacts.DISPLAY_NAME,
ContactsContract.CommonDataKinds.Phone.NUMBER,
ContactsContract.CommonDataKinds.Organization.DATA};
static final String SELECTION = "("+
ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = " + ContactsContract.Contacts._ID + " AND " +
ContactsContract.Data.CONTACT_ID + " = " + ContactsContract.Contacts._ID + " AND " +
ContactsContract.Data.MIMETYPE + " = " + ContactsContract.CommonDataKinds.Organization.CONTENT_ITEM_TYPE +
")";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
String[] fromColumns = {ContactsContract.Contacts._ID,
ContactsContract.Contacts.DISPLAY_NAME,
ContactsContract.CommonDataKinds.Phone.NUMBER,
ContactsContract.CommonDataKinds.Organization.DATA};
int[] toViews = { R.id.contactId,
R.id.contactName,
R.id.phone,
R.id.company};
mAdapter = new SimpleCursorAdapter(this,
R.layout.view_contact_entry, null,
fromColumns, toViews, 0);
setListAdapter(mAdapter);
getLoaderManager().initLoader(0, null, this);
}
public Loader<Cursor> onCreateLoader(int id, Bundle args) {
return new CursorLoader(this, ContactsContract.Contacts.CONTENT_URI,
PROJECTION, SELECTION, null, "DISPLAY_NAME ASC");
}
public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
mAdapter.swapCursor(data);
}
public void onLoaderReset(Loader<Cursor> loader) {
mAdapter.swapCursor(null);
}
}
OK. And here is all information in logcat:
https://lh5.googleusercontent.com/-rXZ0iSq_CEg/Uf9bk-CmwBI/AAAAAAAAAVQ/SvieJesBqqQ/s800/Untitled.png

Try changing each ContactsContract.Contacts._ID for ContactsContract.CommonDataKinds.Phone._ID
and ContactsContract.Contacts.DISPLAY_NAME for ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME

Android: How can I get DISPLAY_NAME & COMPANY name of all contact the same time by using cursorloader?

I want to get DISPLAY_NAME & COMAPNY name of all contacts the same time by using cursorloader. And I have already get DISPLAY NAME of them.
My problem is that I do not know how to get COMPANY name the same time with DISPLAY_NAME!
Could you show me the way to solve my question. Here is my code.
public class MainActivity extends ListActivity implements LoaderManager.LoaderCallbacks<Cursor>{
SimpleCursorAdapter mAdapter;
LoaderManager loadermanager;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
loadermanager = getLoaderManager();
String[] fromColumns = {ContactsContract.Contacts._ID,
ContactsContract.Contacts.DISPLAY_NAME};
int[] toViews = {R.id.contactId,
R.id.contactName};
mAdapter = new SimpleCursorAdapter(this,
R.layout.view_contact_entry, null,
fromColumns, toViews, 0);
setListAdapter(mAdapter);
loadermanager.initLoader(1, null, this);
}
public Loader<Cursor> onCreateLoader(int id, Bundle args) {
String[] projection = new String[] {ContactsContract.CommonDataKinds.Phone._ID,
ContactsContract.Contacts.DISPLAY_NAME};
String selection = ContactsContract.Contacts.IN_VISIBLE_GROUP + " = '1'";
String sortOrder = ContactsContract.Contacts.DISPLAY_NAME + " COLLATE LOCALIZED ASC";
return new CursorLoader(this, ContactsContract.Contacts.CONTENT_URI,
projection, selection, null, sortOrder);
}
public void onLoadFinished(Loader<Cursor> loader, Cursor cursor) {
if(mAdapter!=null && cursor!=null)
mAdapter.swapCursor(cursor);
else
Log.v("MAIN","OnLoadFinished: mAdapter is null");
}
public void onLoaderReset(Loader<Cursor> loader) {
mAdapter.swapCursor(null);
}
#Override
public void onListItemClick(ListView l, View v, int position, long id) {
try {
Cursor cs = (Cursor)l.getItemAtPosition(position);
Intent objIndent = new Intent(getApplicationContext(),DetailContact.class);
objIndent.putExtra("contactId", cs.getString(0));
objIndent.putExtra("contactName", cs.getString(1));
startActivity(objIndent);
} catch (Exception e) {
Log.e("ERROR: ", e.getMessage());
}
}
}

I think you need to look at querying against the ContactsContract.Data
There is an example of joining and pulling in additional data from the contact in the docs
along with this special constant ContactsContract.CommonDataKinds.Organization.COMPANY

Using CursorLoader to get emails causes duplication of emails

I am trying to get email ids of uses contacts. For that I am using Cursor Loader. There is one problem I am getting duplicate email ids also. How to remove email duplicacy. Should I use raw query "SELECT DISTINCT" instead of using CursorLoader or there is some other solution?
#Override
public Loader<Cursor> onCreateLoader(int arg0, Bundle arg1) {
String[] projection = new String[] { ContactsContract.Contacts._ID, ContactsContract.Contacts.DISPLAY_NAME, ContactsContract.CommonDataKinds.Email.DATA};
String sortOrder = ContactsContract.Contacts.DISPLAY_NAME + " COLLATE LOCALIZED ASC";
String selection = ContactsContract.Contacts.IN_VISIBLE_GROUP +"='1' AND " + Email.DATA +" IS NOT NULL AND " + Email.DATA +" != \"\" " ;
//showing only visible contacts
String[] selectionArgs = null;
return new CursorLoader(this, ContactsContract.CommonDataKinds.Email.CONTENT_URI, projection, selection, selectionArgs, sortOrder);
}

I recently ran into this problem. It appears that the CursorLoader does not have an implementation of "DISTINCT". My workaround adds a few lines to the onLoadFinish method and extends the BaseAdapter to accept a List parameter:
#Override
public Loader<Cursor> onCreateLoader(int id, Bundle args) {
String projection[] = {
CommonDataKinds.Phone._ID,
CommonDataKinds.Phone.DISPLAY_NAME,
};
String select = "((" + CommonDataKinds.Phone.DISPLAY_NAME + " NOTNULL) and " + CommonDataKinds.Phone.HAS_PHONE_NUMBER + " > 0)";
String sort = CommonDataKinds.Phone.DISPLAY_NAME + " ASC";
CursorLoader loader = new CursorLoader(
mContext,
CommonDataKinds.Phone.CONTENT_URI,
projection,
select,
null,
sort
);
return loader;
}
#Override
public void onLoadFinished(Loader<Cursor> loader, Cursor cursor) {
List<String> displayNames = new ArrayList<String>();
cursor.moveToFirst();
while(!cursor.isAfterLast()){
String name = cursor.getString(cursor.getColumnIndex(CommonDataKinds.Phone.DISPLAY_NAME));
if(!displayNames.contains(name))
displayNames.add(name);
cursor.moveToNext();
}
mAdapter.swapCursor(displayNames);
}
Here is my BaseAdapter class:
public class AdapterAddContacts extends BaseAdapter{
private List<String> mData = new ArrayList<String>();
private Context mContext;
public AdapterAddContacts(Context context,List<String> displayNames){
mData = displayNames;
mContext = context;
}
#Override
public int getCount() {
if(mData != null)
return mData.size();
else
return 0;
}
#Override
public Object getItem(int pos) {
return mData.get(pos);
}
#Override
public long getItemId(int id) {
return id;
}
#Override
public View getView(int pos, View convertView, ViewGroup parent) {
LayoutInflater inflater = LayoutInflater.from(mContext);
View view = inflater.inflate(R.layout.entry_add_contacts,parent,false);
String data = mData.get(pos);
TextView textName = (TextView)view.findViewById(R.id.my_contacts_add_display_name);
textName.setText(data);
textName.setTag(data);
return view;
}
public void swapCursor(List<String> displayNames){
mData = displayNames;
this.notifyDataSetChanged();
}
You should be able to modify this specifically for your needs.

Inspired by #mars, I have a solution that does not need a modification of the adapter. The idea is to delete the duplicates of the cursor; as there is no way to do it, we create a new cursor whithout the duplicates.
All the code is in onLoadFinished:
#Override
public void onLoadFinished(Loader<Cursor> loader, Cursor cursor) {
MatrixCursor newCursor = new MatrixCursor(PROJECTION); // Same projection used in loader
if (cursor.moveToFirst()) {
String lastName = "";
do {
if (cursor.getString(cursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME)).compareToIgnoreCase(lastName) != 0) {
newCursor.addRow(new Object[]{cursor.getString(0), cursor.getString(1), cursor.getString(2) ...}); // match the original cursor fields
lastName =cursor.getString(cursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
}
} while (cursor.moveToNext());
}
mContactsAdapter.swapCursor(newCursor);
}

I used a small hack in my project - an SQL injection, like that:
#Override
public Loader<Cursor> onCreateLoader(int id, Bundle args) {
return new CursorLoader(
this,
MediaStore.Images.Media.EXTERNAL_CONTENT_URI,
new String[] {
"DISTINCT "+ MediaStore.Images.Media.BUCKET_ID,
MediaStore.Images.Media.BUCKET_DISPLAY_NAME},
null, null, null);
}
This code returns only bundle names and their IDs from Gallery.
So, I'd rewrite your code like that:
#Override
public Loader<Cursor> onCreateLoader(int arg0, Bundle arg1) {
String[] projection = new String[] {
"DISTINCT " + ContactsContract.Contacts._ID,
ContactsContract.Contacts.DISPLAY_NAME,
ContactsContract.CommonDataKinds.Email.DATA};
String sortOrder = ContactsContract.Contacts.DISPLAY_NAME + " COLLATE LOCALIZED ASC";
String selection = ContactsContract.Contacts.IN_VISIBLE_GROUP +"='1' AND " + Email.DATA +" IS NOT NULL AND " + Email.DATA +" != \"\" " ;
//showing only visible contacts
String[] selectionArgs = null;
return new CursorLoader(this, ContactsContract.CommonDataKinds.Email.CONTENT_URI, projection, selection, selectionArgs, sortOrder);
}

You can put setDistinct in your content provider.
#Override
public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) {
...
final SQLiteQueryBuilder qb = new SQLiteQueryBuilder();
qb.setDistinct(true);

If you are worried about performance and don't want to play around with cursor again in onLoadFinished(), then there is a small hack
I combined following two solutions from SO.
select distinct value in android sqlite
CursorLoader with rawQuery
And here is my working solution:
#Override
public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) {
String tableName;
/*
* Choose the table to query and a sort order based on the code returned
* for the incoming URI.
*/
switch (uriMatcher.match(uri)) {
case NOTIFICATION:
tableName = NOTIFICATIONS_TABLE_NAME;
break;
case NOTIFICATION_TIMESTAMP:
Cursor cursor = db.query(true, NOTIFICATIONS_TABLE_NAME, projection, selection, selectionArgs, TIMESTAMP, null, sortOrder, null);
cursor.setNotificationUri(getContext().getContentResolver(), uri);
return cursor;
case DOWNLOAD:
tableName = DOWNLOADS_TABLE;
break;
default:
throw new IllegalArgumentException("Unknown URI " + uri);
}
if (selection != null) {
selection = selection + "=?";
}
Cursor cursor = db.query(tableName, projection, selection, selectionArgs, null, null, sortOrder);
// Tell the cursor what uri to watch, so it knows when its source data
// changes
cursor.setNotificationUri(getContext().getContentResolver(), uri);
return cursor;
}
If you see in this case Table name is same is first 2 cases but i created a dummy Uri to achieve this. May not be a very good approach but works perfectly.

I found a solution
Use DISTINCT keyword in selection Array.
String[] projection = new String[] { ContactsContract.Contacts._ID, ContactsContract.Contacts.DISPLAY_NAME, "DISTINCT" + ContactsContract.CommonDataKinds.Email.DATA};

ListView with CursorLoader and SimpleCursorAdapter isn't displaying data

I'm trying to populate a ListView with data from a query using a CursorLoader. I'm new to CursorLoaders and I'm using code I purloined from Beginning Android 4 Application Development. As you can see, I'm getting data from an Intent. The data in the Intent is what I want; I've verified that in the debugger. However, when I query my database, nothing displays in the ListView. Can anyone help?
public class MyList extends ListActivity implements LoaderManager.LoaderCallbacks<Cursor> {
private static final String TABLE_BASEPATH = "tbl";
private static final String AUTHORITY = "SQLData";
public static final Uri MY_URI = Uri.parse("content://" + AUTHORITY + "/" + TABLE_BASEPATH);
#SuppressWarnings("deprecation")
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Intent myData = getIntent();
Bundle info = myData.getExtras();
if (info != null){
Cursor c;
String[] dataColumns = { "mycolumn" };
String selection = "level = '" + info.getString("Level") + "'";
if (android.os.Build.VERSION.SDK_INT < 11)
c = managedQuery(MY_URI, dataColumns, selection, null, "ORDER BY mycolumn");
else
{
CursorLoader cursorloader = new CursorLoader(this, MY_URI, dataColumns, selection, null, "ORDER BY mycolumn");
c = cursorloader.loadInBackground();
}
int[] viewIDs = { R.id.mylist1 };
SimpleCursorAdapter adapter;
if (android.os.Build.VERSION.SDK_INT < 11)
adapter = new SimpleCursorAdapter(this, R.layout.mylist, c, dataColumns, viewIDs);
else
adapter = new SimpleCursorAdapter(this, R.layout.mylist, c, dataColumns, viewIDs, CursorAdapter.FLAG_REGISTER_CONTENT_OBSERVER);
this.setListAdapter(adapter);
}
}
public Loader<Cursor> onCreateLoader(int id, Bundle args) {
return new CursorLoader(this, MY_URI,
PROJECTION, null, null, null);
}
public void onLoadFinished(Loader<Cursor> loader, Cursor cursor) {
switch (loader.getId()) {
case LOADER_ID:
mAdapter.swapCursor(cursor);
break;
}
}
public void onLoaderReset(Loader<Cursor> loader) {
mAdapter.swapCursor(null);
}
It doesn't matter if I'm using the cursor or the CursorLoader. If my version is < 11 (cursor), I get no data; if it's > 11 (CursorLoader) I still get no data.

You need to put in the id column in the projection when working with ContentProviders, otherwise they "won't work". Which I think you are doing > api level 11...
String[] dataColumns = { "mycolumn" };
The above code should include the id field. If the id field is "_id" (like Sams answer):
String[] dataColumns = { "mycolumn", "_id" };