Android Open Source - android-accelerometer-gps Main Activity

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Back to project page android-accelerometer-gps.

License

The source code is released under:

MIT License

Java Source Code

package com.szlosek.whenmoving;
//  ww  w  .j  av a2s.c  o m
import com.google.android.maps.GeoPoint;
import com.google.android.maps.MapActivity;
import com.google.android.maps.MapController;
import com.google.android.maps.MapView;
import com.google.android.maps.MyLocationOverlay;
import com.google.android.maps.Overlay;
import com.google.android.maps.OverlayItem;

import java.util.Calendar;
import java.util.Date;
import java.util.List;
import java.util.Calendar;
import java.util.GregorianCalendar;
import java.util.Locale;
import java.util.TimeZone;

import android.app.Activity;
import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.text.format.DateFormat;
import android.util.Log;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;

public class MainActivity extends MapActivity {
  MapView myMapView = null;
  protected Drawable myDrawable = null;
  protected MyLocationOverlay myLocation;

  public void Debug(String message) {
    Log.d("WhenMoving", message);
  }
  
  // Activity 
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    myMapView = (MapView) findViewById(R.id.mapview);
    myMapView.setBuiltInZoomControls(true);
    //myOverlays = myMapView.getOverlays();
    
    //myDrawable = this.getResources().getDrawable(R.drawable.marker);
  }
  
  @Override
  protected void onStart() {
    super.onStart();
    
    Debug("Activity started");
  }

  @Override
  protected void onResume() {
    super.onResume();

    MainApplication.onPreferenceChange();
  }
  
  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    Debug("Creating options menu");
    MenuInflater inflater = getMenuInflater();
    inflater.inflate(R.menu.main, menu);
    return true;
  }

  @Override
  protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    // show latest according to intent
    if (requestCode == 1) {
      if (resultCode == Activity.RESULT_OK) {
        long id = data.getLongExtra("id", 0);
        showMarkers( String.format("day = %d", id));
      }
    }
  }

  @Override
  protected void onPause() {
    super.onPause();
    
    if (myLocation != null) {
      myLocation.disableMyLocation();
      myLocation = null;
    }
  }

  @Override
  protected void onDestroy() {
    super.onDestroy();
  }

  // Maps Methods
  @Override
  protected boolean isRouteDisplayed() {
    return false;
  }
  
  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    Intent intent;
    // Handle item selection
    switch (item.getItemId()) {
      case R.id.menu_refresh:
        showLatest();
        return true;
      case R.id.menu_settings:
        intent = new Intent(this, SettingsActivity.class);
        startActivity(intent);
        return true;
      case R.id.show_days:
        intent = new Intent(this, DaysActivity.class);
        startActivityForResult(intent, 1);
        return true;
      case R.id.menu_calibrate:
        intent = new Intent(this, CalibrationActivity.class);
        startActivity(intent);
        return true;
      default:
        return super.onOptionsItemSelected(item);
    }
  }


  private void startGPSing() {
    MainApplication.trackingOn = true;
    
    MainApplication.getInstance().startup();
  }
  
  protected void showLatest() {
    GregorianCalendar cal;
    String q, dateStart, dateEnd;
    long millisStart, millisEnd;
    
    cal = new GregorianCalendar(); // local
    cal.set(Calendar.HOUR_OF_DAY, 0);
    cal.set(Calendar.MINUTE, 0);
    cal.set(Calendar.SECOND, 0);
    millisStart = cal.getTimeInMillis();
    cal.set(Calendar.HOUR_OF_DAY, 23);
    cal.set(Calendar.MINUTE, 59);
    cal.set(Calendar.SECOND, 59);
    millisEnd = cal.getTimeInMillis();
    
    // Now get year, month and day for start and stop in GMT
    cal = new GregorianCalendar(TimeZone.getTimeZone("GMT"), Locale.US); // GMT, 
    cal.setTimeInMillis(millisStart);
    dateStart = DateFormat.format("yyyyMMdd", cal).toString();
    cal.setTimeInMillis(millisEnd);
    dateEnd = DateFormat.format("yyyyMMdd", cal).toString();

    
    q = String.format(
      "day between %s and %s and milliseconds between %d and %d and provider='gps' and accuracy < 40.00",
      dateStart,
      dateEnd,
      millisStart,
      millisEnd
    );
    showMarkers(q);
  }

  protected void showMarkers(String where) {
    SQLiteOpenHelper dbHelper = new DatabaseHelper(this);
    SQLiteDatabase db = dbHelper.getReadableDatabase();
    // Clear layer/markers
    List<Overlay> myOverlays = myMapView.getOverlays();

    
    // Get 10 newest locations, all from GPS, and with better than 40 meters accuracy
    Cursor c = db.query(
      "locations",
      null,
      where,
      null,
      null,
      null,
      "milliseconds DESC",
      "1000"
    );
    int iMilliseconds = c.getColumnIndex("milliseconds");
    int iLongitude = c.getColumnIndex("longitude");
    int iLatitude = c.getColumnIndex("latitude");
    
    GeoPoint gpFirst = null;
    GeoPoint gpPrevious = null;
    
    /*
    myLocation = new MyLocationOverlay(this, myMapView);
    myLocation.enableMyLocation();
    */

    MyOverlay.projection = myMapView.getProjection();
    myOverlays.clear();
    
    while (c.moveToNext()) {
      Double lo, la;
      la = new Double(c.getFloat(iLatitude) * 1E6);
      lo = new Double(c.getFloat(iLongitude) * 1E6);
      GeoPoint gp = new GeoPoint(
        la.intValue(),
        lo.intValue()
      );
      if (gpFirst == null) gpFirst = gp;
      Date d = new Date( c.getLong(iMilliseconds) );
      
      myOverlays.add( new MyOverlay(gpPrevious, gp) );
      gpPrevious = gp;
    }
    c.close();
    dbHelper.close();
    
    if (gpFirst != null) myMapView.getController().setCenter(gpFirst);
    /*
    // Redraw these GeoPoints on the map, with path lines, and pretty colors
    mapController.setZoom(21);
    */
  }

}

Java Source Code List

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