Android Open Source - grtransit Routeselect Activity

• Back to App/transit  ↑

From Project

Back to project page grtransit.

License

The source code is released under:

GNU General Public License

Java Source Code

/*
 * Copyright 2011 Giles Malet.//from www. j  av a  2s . c o m
 *
 * This file is part of GRTransit.
 * 
 * GRTransit 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
 * (at your option) any later version.
 * 
 * GRTransit 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 GRTransit.  If not, see <http://www.gnu.org/licenses/>.
 */

package net.kw.shrdlu.grtgtfs.Activities;

import android.content.Intent;
import android.database.Cursor;
import android.os.AsyncTask;
import android.os.Bundle;
import android.text.format.Time;
import android.view.GestureDetector;
import android.view.MotionEvent;
import android.view.View;
import android.view.Window;
import android.widget.ListView;
import android.widget.TextView;

import com.google.android.gms.analytics.HitBuilders;

import net.kw.shrdlu.grtgtfs.DatabaseHelper;
import net.kw.shrdlu.grtgtfs.GRTApplication;
import net.kw.shrdlu.grtgtfs.LayoutAdapters.ListCursorAdapter;
import net.kw.shrdlu.grtgtfs.R;

public class RouteselectActivity extends MenuListActivity {
  private static final String TAG = "RouteselectActivity";

  private String mStopid, mStopname;
  private Cursor mCsr;

  @Override
  public void onCreate(Bundle savedInstanceState) {
    mContext = this;

        // Will use the action bar progress bar
        requestWindowFeature(Window.FEATURE_PROGRESS);

        setContentView(R.layout.timeslayout);
    super.onCreate(savedInstanceState);

        getActionBar().setTitle("Select a Route");
        getActionBar().setSubtitle(null);

    final String pkgstr = mContext.getApplicationContext().getPackageName();
    final Intent intent = getIntent();
    mStopid = intent.getStringExtra(pkgstr + ".stop_id");
    mStopname = intent.getStringExtra(pkgstr + ".stop_name");

    // Do the rest off the main thread
    new ProcessRoutes().execute();
  }

  @Override
  protected void onListItemClick(ListView l, View v, int position, long id) {
    // Log.v(TAG, "clicked position " + position);

    final String route_id = mCsr.getString(0);
    final String headsign = mCsr.getString(1);
    if (route_id == null || headsign == null) {
      return;
    }

        GRTApplication.tracker.send(new HitBuilders.EventBuilder()
                .setCategory(mContext.getLocalClassName())
                .setAction("Select route")
                .setLabel(route_id + " - " + headsign)
                .build());

    final Intent bustimes = new Intent(mContext, TimesActivity.class);
    final String pkgstr = mContext.getApplicationContext().getPackageName();
    bustimes.putExtra(pkgstr + ".route_id", route_id);
    bustimes.putExtra(pkgstr + ".headsign", headsign);
    bustimes.putExtra(pkgstr + ".stop_id", mStopid);
        bustimes.putExtra(pkgstr + ".stop_name", mStopname);

        mContext.startActivity(bustimes);
  }

  private final View.OnTouchListener mGestureListener = new View.OnTouchListener() {
    @Override
    public boolean onTouch(View v, MotionEvent event) {
      return mGestureDetector.onTouchEvent(event);
    }
  };

  // Catch flings, to show all busses coming to this stop.
  // This must be called on the GIU thread.
  private final GestureDetector mGestureDetector = new GestureDetector(mContext,
      new GestureDetector.SimpleOnGestureListener() {
        @Override
        public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
          // Log.d(TAG, "fling X " + velocityX + ", Y " + velocityY);
          // Catch a fling sort of from right to left
          if (velocityX < -100 && Math.abs(velocityX) > Math.abs(velocityY)) {
            // Log.d(TAG, "left fling detected");
                        GRTApplication.tracker.send(new HitBuilders.EventBuilder()
                                .setCategory(mContext.getLocalClassName())
                                .setAction("fling left")
                                .setLabel(mStopid)
                                .build());
            final Intent bustimes = new Intent(mContext, TimesActivity.class);
            final String pkgstr = mContext.getApplicationContext().getPackageName();
            bustimes.putExtra(pkgstr + ".stop_id", mStopid);
                        bustimes.putExtra(pkgstr + ".stop_name", mStopname);
            mContext.startActivity(bustimes);
            return true;
          } else if (velocityX > 100 && Math.abs(velocityX) > Math.abs(velocityY)) {
            // Log.d(TAG, "right fling detected");
                        GRTApplication.tracker.send(new HitBuilders.EventBuilder()
                                .setCategory(mContext.getLocalClassName())
                                .setAction("fling right")
                                .build());
            finish();
            return true;
          }
          return false;
        }
      });

    // Catch the user selecting the map option from the navigation drawer,
    // and show the map with this stop centered.
    @Override
  public boolean onNavOptionSelected(int itemid) {
    switch (itemid) {
            case R.id.menu_showmap: {
            GRTApplication.tracker.send(new HitBuilders.EventBuilder()
                    .setCategory(mContext.getLocalClassName())
                    .setAction("Show stop")
                    .setLabel(mStopid)
                    .build());
      final String pkgstr = mContext.getApplicationContext().getPackageName();
      final Intent busstop = new Intent(mContext, StopsActivity.class);
      busstop.putExtra(pkgstr + ".stop_id", mStopid);
            busstop.putExtra(pkgstr + ".stop_name", mStopname);
      startActivity(busstop);
      return true;
    }
    default: {
      return false;
    }
    }
  }

  /* Do the processing to load the ArrayAdapter for display. */
  private class ProcessRoutes extends AsyncTask<Void, Integer, Integer> {
    // static final String TAG = "ProcessRoutes";

    @Override
    protected void onPreExecute() {
            setProgressBarVisibility(true);
    }

    // Update the progress bar.
    @Override
    protected void onProgressUpdate(Integer... parms) {
      setProgress(parms[0]);
    }

    @Override
    protected Integer doInBackground(Void... foo) {
      // Log.v(TAG, "doInBackground()");

      publishProgress(2500); // fake it

      // Find which routes use the given stop.
      // Only show bus routes where the schedule is valid for the current date
      final Time t = new Time(); // TODO - this duplicates BusTimes?
      t.setToNow();
      final String datenow = String.format("%04d%02d%02d", t.year, t.month + 1, t.monthDay);
      final String qry = "select distinct routes.route_short_name as _id, trip_headsign as descr from trips"
          + " join routes on routes.route_id = trips.route_id"
          + " join calendar on trips.service_id = calendar.service_id where "
          + " trip_id in (select trip_id from stop_times where stop_id = ?) and "
          + " start_date <= ? and end_date >= ?";
      final String[] selectargs = { mStopid, datenow, datenow };
      mCsr = DatabaseHelper.ReadableDB().rawQuery(qry, selectargs);

      publishProgress(5000); // fake it
      startManagingCursor(mCsr);

      publishProgress(7500); // fake it
      return mCsr.getCount();
    }

    @Override
    protected void onPostExecute(Integer listcount) {
      // Log.v(TAG, "onPostExecute()");

      final ListView lv = getListView();
      lv.setOnTouchListener(mGestureListener);

      if (listcount > 1) {
        // Show msg describing a fling to see times for all routes.
        final TextView tv = new TextView(mContext);
        tv.setText(R.string.route_fling);
        lv.addFooterView(tv);
      } else if (listcount == 0) {
        final TextView tv = new TextView(mContext);
        tv.setText(R.string.stop_unused);
        lv.addFooterView(tv);
      }

      setListAdapter(new ListCursorAdapter(mContext, R.layout.route_numanddesc, mCsr));

            getActionBar().setTitle("Routes using stop " + mStopid);
            getActionBar().setSubtitle(mStopname);
            setProgress(10000); // max -- makes it slide away
    }
  }
}

Java Source Code List

• Back to App/transit  ↑