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import android.app.Activity;
import android.content.ContentResolver;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.widget.TextView;

public class FetchContactActivity extends Activity {
	public TextView outputText;

	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);
		outputText = (TextView) findViewById(R.id.textView1);
		fetchContacts();
	}

	public void fetchContacts() {

		String phoneNumber = null;
		String email = null;

		Uri CONTENT_URI = ContactsContract.Contacts.CONTENT_URI;
		String _ID = ContactsContract.Contacts._ID;
		String DISPLAY_NAME = ContactsContract.Contacts.DISPLAY_NAME;
		String HAS_PHONE_NUMBER = ContactsContract.Contacts.HAS_PHONE_NUMBER;

		Uri PhoneCONTENT_URI = ContactsContract.CommonDataKinds.Phone.CONTENT_URI;
		String Phone_CONTACT_ID = ContactsContract.CommonDataKinds.Phone.CONTACT_ID;
		String NUMBER = ContactsContract.CommonDataKinds.Phone.NUMBER;

		Uri EmailCONTENT_URI =  ContactsContract.CommonDataKinds.Email.CONTENT_URI;
		String EmailCONTACT_ID = ContactsContract.CommonDataKinds.Email.CONTACT_ID;
		String DATA = ContactsContract.CommonDataKinds.Email.DATA;

		StringBuffer output = new StringBuffer();

		ContentResolver contentResolver = getContentResolver();

		Cursor cursor = contentResolver.query(CONTENT_URI, null,null, null, null);	

		// Loop for every contact in the phone
		if (cursor.getCount() > 0) {

			while (cursor.moveToNext()) {

				String contact_id = cursor.getString(cursor.getColumnIndex( _ID ));
				String name = cursor.getString(cursor.getColumnIndex( DISPLAY_NAME ));

				int hasPhoneNumber = Integer.parseInt(cursor.getString(cursor.getColumnIndex( HAS_PHONE_NUMBER )));

				if (hasPhoneNumber > 0) {

					output.append("\n First Name:" + name);

					// Query and loop for every phone number of the contact
					Cursor phoneCursor = contentResolver.query(PhoneCONTENT_URI, null, Phone_CONTACT_ID + " = ?", new String[] { contact_id }, null);

					while (phoneCursor.moveToNext()) {
						phoneNumber = phoneCursor.getString(phoneCursor.getColumnIndex(NUMBER));
						output.append("\n Phone number:" + phoneNumber);

					}

					phoneCursor.close();

					// Query and loop for every email of the contact
					Cursor emailCursor = contentResolver.query(EmailCONTENT_URI,	null, EmailCONTACT_ID+ " = ?", new String[] { contact_id }, null);

					while (emailCursor.moveToNext()) {

						email = emailCursor.getString(emailCursor.getColumnIndex(DATA));

						output.append("\nEmail:" + email);

					}

					emailCursor.close();
				}

				output.append("\n");
			}

			outputText.setText(output);
		}
	}

}