edu.stanford.mobisocial.dungbeetle.util.AddressBookPicker.java Source code

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Here is the source code for edu.stanford.mobisocial.dungbeetle.util.AddressBookPicker.java

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/*
 * Copyright (C) 2011 The Stanford MobiSocial Laboratory
 *
 * This file is part of Musubi, a mobile social network.
 *
 *  This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */

package edu.stanford.mobisocial.dungbeetle.util;

import android.content.Context;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.provider.ContactsContract.CommonDataKinds;
import android.provider.ContactsContract.Contacts;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.LoaderManager.LoaderCallbacks;
import android.support.v4.content.CursorLoader;
import android.support.v4.content.Loader;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.CursorAdapter;
import android.widget.ListView;
import android.widget.RelativeLayout;
import android.widget.TextView;
import edu.stanford.mobisocial.dungbeetle.R;

/**
 * Choose contacts from the device's address book.
 *
 */
public class AddressBookPicker extends FragmentActivity implements LoaderCallbacks<Cursor> {

    private ListView mListView;
    private ContactListAdapter mAdapter;
    private LayoutInflater mInflater;

    private static final String CLAUSE_ONLY_VISIBLE = Contacts.IN_VISIBLE_GROUP + "=1";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.addressbook_picker);
        mInflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        mListView = (ListView) findViewById(R.id.contacts);
        getSupportLoaderManager().initLoader(0, null, this);
    }

    @Override
    public Loader<Cursor> onCreateLoader(int arg0, Bundle arg1) {
        Context context = this;
        Uri uri = Contacts.CONTENT_URI;
        String[] projection = new String[] { Contacts._ID, Contacts.LOOKUP_KEY };
        String selection = CLAUSE_ONLY_VISIBLE;
        String[] selectionArgs = null;
        String sortOrder = null;
        return new CursorLoader(context, uri, projection, selection, selectionArgs, sortOrder);
    }

    @Override
    public void onLoadFinished(Loader<Cursor> loader, Cursor cursor) {
        if (mAdapter == null) {
            mListView = (ListView) findViewById(R.id.contacts);
            mAdapter = new ContactListAdapter(loader.getContext(), cursor);
            mListView.setAdapter(mAdapter);
            mListView.setFastScrollEnabled(true);
        } else {
            mAdapter.changeCursor(cursor);
        }
    }

    @Override
    public void onLoaderReset(Loader<Cursor> arg0) {
    }

    class ContactListAdapter extends CursorAdapter {
        public ContactListAdapter(Context context, Cursor c) {
            super(context, c);
        }

        @Override
        public void bindView(View view, Context context, Cursor cursor) {
            RelativeLayout frame = (RelativeLayout) view;

            long contactId = cursor.getLong(0);
            String lookupKey = cursor.getString(1);

            Uri uri = CommonDataKinds.Email.CONTENT_URI;
            String[] projection = new String[] { CommonDataKinds.Email.DATA };
            String selection = CommonDataKinds.Email.CONTACT_ID + " = ?";
            String[] selectionArgs = new String[] { Long.toString(contactId) };
            String sortOrder = null;

            cursor = getContentResolver().query(uri, projection, selection, selectionArgs, sortOrder);
            String email = null;
            if (cursor.moveToFirst()) {
                email = cursor.getString(0);
            } else {
                email = "";
                frame.setEnabled(false);
            }
            cursor.close();

            uri = Contacts.getLookupUri(contactId, lookupKey);
            projection = new String[] { Contacts.DISPLAY_NAME };
            selection = null;
            selectionArgs = null;
            sortOrder = null;
            cursor = getContentResolver().query(uri, projection, selection, selectionArgs, sortOrder);
            String name = null;
            if (cursor.moveToFirst()) {
                name = cursor.getString(0);
            } else {
                // TODO
            }
            cursor.close();
            ((TextView) frame.findViewById(R.id.name)).setText(name);
            ((TextView) frame.findViewById(R.id.email)).setText(email);
        }

        @Override
        public View newView(Context context, Cursor cursor, ViewGroup parent) {
            return mInflater.inflate(R.layout.addressbook_picker_entry, parent, false);
        }
    }
}