com.google.android.apps.mytracks.fragments.AddEmailsDialogFragment.java Source code

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Here is the source code for com.google.android.apps.mytracks.fragments.AddEmailsDialogFragment.java

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/*
 * Copyright 2013 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */

package com.google.android.apps.mytracks.fragments;

import com.google.android.maps.mytracks.R;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.support.v4.app.DialogFragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.widget.SimpleCursorAdapter;
import android.view.View;
import android.widget.FilterQueryProvider;
import android.widget.MultiAutoCompleteTextView;

/**
 * A DialogFragment to add emails.
 * 
 * @author Jimmy Shih
 */
public class AddEmailsDialogFragment extends DialogFragment {

    /**
     * Interface for caller of this dialog fragment.
     * 
     * @author Jimmy Shih
     */
    public interface AddEmailsCaller {

        /**
         * Called when add emails is done.
         * 
         * @param emails the added emails
         */
        public void onAddEmailsDone(String emails);
    }

    public static final String ADD_EMAILS_DIALOG_TAG = "addEmailsDialog";

    private static final String KEY_TRACK_ID = "trackId";

    public static AddEmailsDialogFragment newInstance(long trackId) {
        Bundle bundle = new Bundle();
        bundle.putLong(KEY_TRACK_ID, trackId);

        AddEmailsDialogFragment addPeopleDialogFragment = new AddEmailsDialogFragment();
        addPeopleDialogFragment.setArguments(bundle);
        return addPeopleDialogFragment;
    }

    private AddEmailsCaller caller;
    private FragmentActivity fragmentActivity;
    private MultiAutoCompleteTextView multiAutoCompleteTextView;

    @Override
    public void onAttach(Activity activity) {
        super.onAttach(activity);
        try {
            caller = (AddEmailsCaller) activity;
        } catch (ClassCastException e) {
            throw new ClassCastException(
                    activity.toString() + " must implement " + AddEmailsCaller.class.getSimpleName());
        }
    }

    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        fragmentActivity = getActivity();
        View view = fragmentActivity.getLayoutInflater().inflate(R.layout.add_emails, null);
        multiAutoCompleteTextView = (MultiAutoCompleteTextView) view.findViewById(R.id.add_emails);
        multiAutoCompleteTextView.setTokenizer(new MultiAutoCompleteTextView.CommaTokenizer());

        SimpleCursorAdapter adapter = new SimpleCursorAdapter(fragmentActivity, R.layout.add_emails_item,
                getCursor(fragmentActivity, null),
                new String[] { ContactsContract.Contacts.DISPLAY_NAME,
                        ContactsContract.CommonDataKinds.Email.DATA },
                new int[] { android.R.id.text1, android.R.id.text2 }, 0);
        adapter.setCursorToStringConverter(new SimpleCursorAdapter.CursorToStringConverter() {
            @Override
            public CharSequence convertToString(Cursor cursor) {
                int index = cursor.getColumnIndex(ContactsContract.CommonDataKinds.Email.DATA);
                return cursor.getString(index).trim();
            }
        });
        adapter.setFilterQueryProvider(new FilterQueryProvider() {
            @Override
            public Cursor runQuery(CharSequence constraint) {
                return getCursor(fragmentActivity, constraint);
            }
        });
        multiAutoCompleteTextView.setAdapter(adapter);

        return new AlertDialog.Builder(fragmentActivity).setNegativeButton(R.string.generic_cancel, null)
                .setPositiveButton(R.string.generic_ok, new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        String acl = multiAutoCompleteTextView.getText().toString();
                        caller.onAddEmailsDone(acl);
                    }
                }).setTitle(R.string.share_track_add_emails_title).setView(view).create();
    }

    /**
     * Gets the cursor
     * 
     * @param activity the activity
     * @param constraint the constraint
     */
    private Cursor getCursor(Activity activity, CharSequence constraint) {
        String order = ContactsContract.Contacts.DISPLAY_NAME + " COLLATE LOCALIZED ASC";
        String selection = ContactsContract.Contacts.IN_VISIBLE_GROUP + " = '1'";
        if (constraint != null) {
            selection += " AND (" + ContactsContract.Contacts.DISPLAY_NAME + " LIKE '%" + constraint + "%' OR "
                    + ContactsContract.CommonDataKinds.Email.DATA + " LIKE '%" + constraint + "%' )";
        }
        String[] projection = new String[] { ContactsContract.Contacts._ID, ContactsContract.Contacts.DISPLAY_NAME,
                ContactsContract.CommonDataKinds.Email.DATA };
        Uri uri = ContactsContract.CommonDataKinds.Email.CONTENT_URI;
        return activity.getContentResolver().query(uri, projection, selection, null, order);
    }
}