Hello,
I am learning about Content Providers and tried the following example from a
tutorial. This example performs a Google Maps search based on the home
address of a contact.
First, the various contacts are presented in a ListView, and then when the
user taps the entry of a particular contact, the application is supposed to
present the user with the location of the address on the map.
To access the latitude information, I used
android.provider.Contacts.ContactMethods.POSTAL_LOCATION_LATITUDE in a DB
query. However, Android is returning the email address of the contact
instead of the Home Address!
Can someone tell me, why this might be the case, and what I must change to
obtain the correct address?
Please see the code below (let me know if I should provide any more info):
--------------------
package com.msi.ibmtutorial;
import android.os.Bundle;
import android.app.ListActivity;
import android.database.Cursor;
import android.util.Log;
import android.view.View;
import android.widget.ListView;
import android.widget.ListAdapter;
import android.net.Uri;
import android.content.Intent;
import android.widget.SimpleCursorAdapter;
import android.provider.BaseColumns;
import android.provider.Contacts;
import android.provider.Contacts.ContactMethods;
import android.provider.Contacts.People;
public class MobileServiceCallContacts extends ListActivity {
final String tag = "MSCC";
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
//Cursor c = getContentResolver().query( People.CONTENT_URI,
Cursor c = managedQuery( People.CONTENT_URI,
null,
null,
null,
null );
startManagingCursor( c );
Integer cols = new Integer( c.getColumnCount() );
Log.i( "MSCC", "Number of cols is: " + cols.toString() );
String[] people_name = new String[] { People.NAME };
int[] text_id = new int[] { android.R.id.text1 };
ListAdapter la = new SimpleCursorAdapter( this,
android.R.layout.simple_list_item_1,
c,
people_name,
text_id );
setListAdapter( la );
}
@Override
protected void onListItemClick ( ListView lv, View v, int position, long
dbId ) {
super.onListItemClick( lv, v, position, dbId );
try {
/* Obtain the details of this record by creating a Content
Provider.
* The WHERE clause used in the call to managedQuery below is
for the Home address
* and for the person record selected in the GUI.
*/
//String[] cols = new String[] { "type", "name" };
//String query_string = "type=1 and name=" + dbId;
String cols[]= new String[] {
BaseColumns._ID,
Contacts.ContactMethods.POSTAL_LOCATION_LATITUDE,
People.NAME };
String query_string = "type=" + dbId;
Log.d( "MSCC", "query_string = " + query_string );
Cursor c = managedQuery( ContactMethods.CONTENT_URI,
cols,
null, //query_string,
null,
null );
startManagingCursor( c );
if ( c.isBeforeFirst() ) {
c.move( 1 );
if ( !c.isFirst() )
{
Throwable t = new Throwable();
showAlert( "MSCC", "No contacts methods available!", t
);
return;
}
}
Integer nCols = new Integer( c.getColumnCount() );
int i;
for ( i=0; i<nCols; i++ ) {
Log.d( "MSCC", "c.getString[" + i + "] = " + c.getString( i
) );
}
//String addr = c.getString( c.getColumnIndex( "aux_data" )
);
String addr = c.getString( c.getColumnIndex(
ContactMethods.POSTAL_LOCATION_LATITUDE ) );
Log.d( "MSCC", "addr = " + addr );
addr = addr.replace( "\n", "" );
addr = addr.replace( ",", "" );
addr = addr.replace( " ", "+" );
Uri uriContent1 = Uri.parse( "geo:0,0?q=" + addr );
Intent geoIntent = new Intent( "android.intent.action.VIEW",
uriContent1 );
startActivity( geoIntent );
}
catch ( Exception e ) {
Log.i( tag, e.getMessage() );
}
}
void showAlert( String tag, String msg, Throwable t ) {
Log.e( tag, msg, t );
}
}
--------------------
This is the output in LogCat:
08-24 18:46:25.554: DEBUG/MSCC(1160): c.getString[0] = 1
08-24 18:46:25.564: DEBUG/MSCC(1160): c.getString[1] = [email protected]
08-24 18:46:25.564: DEBUG/MSCC(1160): c.getString[2] = Aaa
08-24 18:46:25.574: DEBUG/MSCC(1160): addr = [email protected]
-----------------------
Thanks,
Pankaj Godbole,
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