com.davidmascharka.lips.SelectBuildingDialogFragment.java Source code

Introduction

Here is the source code for com.davidmascharka.lips.SelectBuildingDialogFragment.java

Source

package com.davidmascharka.lips;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.support.v4.app.DialogFragment;

import com.mascharka.indoorlocalization.R;

/**
 *  Copyright 2015 David Mascharka
 * 
 * This file is part of LIPS (Learning-based Indoor Positioning System).
 *
 *  LIPS 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 3 of the License, or
 *  any later version.
 *
 *  LIPS 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 LIPS.  If not, see <http://www.gnu.org/licenses/>.
 */

/**
 * 
 * @author David Mascharka (david.mascharka@drake.edu)
 * 
 * Dialog to allow the user to select which building they are in
 * Determines what access points to record
 * 
 * To customize, edit the building names in onCreateDialog with the
 * appropriate room/building names
 *
 */
public class SelectBuildingDialogFragment extends DialogFragment {

    /* The activity that creates an instance of this dialog fragment must
     * implement this interface in order to receive event callbacks.
     * The method passes the building the user touched.
     */
    public interface SelectBuildingDialogListener {
        public void onBuildingChanged(String building);
    }

    // Use this instance of the interface to deliver action events
    SelectBuildingDialogListener listener;

    // Instantiate the SelectBuildingDialogListener
    @Override
    public void onAttach(Activity activity) {
        super.onAttach(activity);

        // Verify the host activity implements the callback interface
        try {
            // Instantiate the listener so we can send events to the host
            listener = (SelectBuildingDialogListener) activity;
        } catch (ClassCastException e) {
            // The activity doesn't implement the interface
            throw new ClassCastException(activity.toString() + " must implement SelectBuildingDialogListener");
        }
    }

    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());

        builder.setTitle(R.string.dialog_select_building).setItems(R.array.buildings,
                new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        if (which == 0) {
                            listener.onBuildingChanged("Howard");
                        } else if (which == 1) {
                            listener.onBuildingChanged("Cowles");
                        } else if (which == 2) {
                            listener.onBuildingChanged("Cartwright");
                        }
                    }
                });

        return builder.create();
    }
}