Using MapActivity : MapActivity « Core Class « Android

1. Android
2. Core Class
3. MapActivity

Using MapActivity

  

/* Copyright (c) 2008-2009 -- CommonsWare, LLC

   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.commonsware.android.maps;

import android.app.Activity;
import android.graphics.drawable.Drawable;
import android.graphics.Canvas;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.ViewGroup;
import android.widget.LinearLayout;
import android.widget.Toast;
import com.google.android.maps.GeoPoint;
import com.google.android.maps.ItemizedOverlay;
import com.google.android.maps.MapActivity;
import com.google.android.maps.MapController;
import com.google.android.maps.MapView;
import com.google.android.maps.MapView.LayoutParams;
import com.google.android.maps.MyLocationOverlay;
import com.google.android.maps.OverlayItem;
import java.util.ArrayList;
import java.util.List;

public class NooYawk extends MapActivity {
  private MapView map=null;
  private MyLocationOverlay me=null;
  
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    
    map=(MapView)findViewById(R.id.map);
    
    map.getController().setCenter(getPoint(40.76793169992044,
                                            -73.98180484771729));
    map.getController().setZoom(17);
    map.setBuiltInZoomControls(true);
    
    Drawable marker=getResources().getDrawable(R.drawable.marker);
    
    marker.setBounds(0, 0, marker.getIntrinsicWidth(),
                            marker.getIntrinsicHeight());
    
    map.getOverlays().add(new SitesOverlay(marker));
    
    me=new MyLocationOverlay(this, map);
    map.getOverlays().add(me);
  }
  
  @Override
  public void onResume() {
    super.onResume();
    
    me.enableCompass();
  }    
  
  @Override
  public void onPause() {
    super.onPause();
    
    me.disableCompass();
  }    
  
   @Override
  protected boolean isRouteDisplayed() {
    return(false);
  }
  
   @Override
  public boolean onKeyDown(int keyCode, KeyEvent event) {
    if (keyCode == KeyEvent.KEYCODE_S) {
      map.setSatellite(!map.isSatellite());
      return(true);
    }
    else if (keyCode == KeyEvent.KEYCODE_Z) {
      map.displayZoomControls(true);
      return(true);
    }
    
    return(super.onKeyDown(keyCode, event));
  }

  private GeoPoint getPoint(double lat, double lon) {
    return(new GeoPoint((int)(lat*1000000.0),
                          (int)(lon*1000000.0)));
  }
    
  private class SitesOverlay extends ItemizedOverlay<OverlayItem> {
    private List<OverlayItem> items=new ArrayList<OverlayItem>();
    private Drawable marker=null;
    
    public SitesOverlay(Drawable marker) {
      super(marker);
      this.marker=marker;
      
      items.add(new OverlayItem(getPoint(40.748963847316034,
                                          -73.96807193756104),
                                "UN", "United Nations"));
      items.add(new OverlayItem(getPoint(40.76866299974387,
                                          -73.98268461227417),
                                "Lincoln Center",
                                "Home of Jazz at Lincoln Center"));
      items.add(new OverlayItem(getPoint(40.765136435316755,
                                          -73.97989511489868),
                                "Carnegie Hall",
              "Where you go with practice, practice, practice"));
      items.add(new OverlayItem(getPoint(40.70686417491799,
                                          -74.01572942733765),
                                "The Downtown Club",
                        "Original home of the Heisman Trophy"));

      populate();
    }
    
    @Override
    protected OverlayItem createItem(int i) {
      return(items.get(i));
    }
    
    @Override
    public void draw(Canvas canvas, MapView mapView,
                      boolean shadow) {
      super.draw(canvas, mapView, shadow);
      
      boundCenterBottom(marker);
    }
     
    @Override
    protected boolean onTap(int i) {
      Toast.makeText(NooYawk.this,
                      items.get(i).getSnippet(),
                      Toast.LENGTH_SHORT).show();
      
      return(true);
    }
    
    @Override
    public int size() {
      return(items.size());
    }
  }
}



//res\layout\main.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent">
  <com.google.android.maps.MapView android:id="@+id/map"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:apiKey="00yHj0k7_7vzHbUFXzY2j94lYYCqW3NAIW8EEEw"
    android:clickable="true" />
</RelativeLayout>

   
    
  

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