se.team05.activity.ListExistingRoutesActivity.java Source code

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Here is the source code for se.team05.activity.ListExistingRoutesActivity.java

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/**
   This file is part of Personal Trainer.
    
Personal Trainer 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.
    
Personal Trainer 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 Personal Trainer.  If not, see <http://www.gnu.org/licenses/>.
    
(C) Copyright 2012: Daniel Kvist, Henrik Hugo, Gustaf Werlinder, Patrik Thitusson, Markus Schutzer
 */
package se.team05.activity;

import se.team05.R;
import se.team05.content.Route;
import se.team05.data.DBRouteAdapter;
import se.team05.data.DatabaseHandler;
import android.app.ListActivity;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.os.Bundle;
import android.support.v4.app.NavUtils;
import android.util.Log;
import android.view.MenuItem;
import android.view.View;
import android.widget.ListView;
import android.widget.SimpleCursorAdapter;
import android.widget.TextView;

/**
 * An activity that will present the user with the option to choose and old
 * route. Gets routes from database and presents them in a listview.
 * 
 * @author Markus, Henrik Hugo
 * 
 */
public class ListExistingRoutesActivity extends ListActivity {
    private Context context;

    /**
     * Presents a list of all existing routes to choose from and
     * if no routes exist an option to create a new route will
     * be presented.
     */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_list_existing_routes);
        getActionBar().setDisplayHomeAsUpEnabled(true);

        // Add empty view with quick link to record a new route
        this.context = getApplicationContext();
        TextView emptyView = (TextView) findViewById(R.id.empty_view);
        emptyView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(context, RouteActivity.class);
                startActivity(intent);
            }
        });
        getListView().setEmptyView(emptyView);

        // Setup database connection and get cursor with results
        DatabaseHandler db = new DatabaseHandler(this);
        Cursor cursor = db.getAllRoutesCursor();

        // Setup adapter
        RouteListCursorAdapter routeListCursorAdapter = new RouteListCursorAdapter(this,
                android.R.layout.simple_list_item_1, cursor, new String[] { DBRouteAdapter.COLUMN_NAME },
                new int[] { android.R.id.text1 });

        this.setListAdapter(routeListCursorAdapter);

    }

    /**
     * Is called upon by the system whenever a listitem is clicked
     * and will then launch RouteActivity, passing along the id of
     * the selected route.
     */
    public void onListItemClick(ListView l, View v, int position, long id) {
        Intent intent;

        intent = new Intent(this.getApplicationContext(), RouteActivity.class);
        intent.putExtra(Route.EXTRA_ID, id);

        // Debugging of values passed in by the system
        Log.d(getString(R.string.id), String.valueOf(id));
        Log.d(getString(R.string.position), String.valueOf(position));

        this.startActivity(intent);
    }

    /**
     * This method is called when an item in the action bar (options menu) has
     * been pressed. Currently this only takes the user to the parent activity
     * (main activity).
     */
    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
        case android.R.id.home:
            NavUtils.navigateUpFromSameTask(this);
            return true;
        }
        return super.onOptionsItemSelected(item);
    }

    /**
     * Simple class for automatically formating the content, from a cursor
     * returned by the database, to a listview.
     * 
     * @author Henrik Hugo
     * 
     */
    private class RouteListCursorAdapter extends SimpleCursorAdapter {

        @SuppressWarnings("deprecation")
        public RouteListCursorAdapter(Context context, int layout, Cursor c, String[] from, int[] to) {
            super(context, layout, c, from, to);
        }

        @SuppressWarnings("deprecation")
        public RouteListCursorAdapter(Context context, int layout, Cursor c) {
            super(context, layout, c, null, null);
        }
    }

}