Android Open Source - smartnavi Generic Map View

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From Project

Back to project page smartnavi.

License

The source code is released under:

Apache License

Java Source Code

package org.osmdroid.bonuspack.mapsforge;
/*w  w  w . j  a v  a 2s.co m*/
import java.util.List;

import org.osmdroid.DefaultResourceProxyImpl;
import org.osmdroid.ResourceProxy;
import org.osmdroid.api.IMapController;
import org.osmdroid.tileprovider.MapTileProviderBase;
import org.osmdroid.views.MapView;
import org.osmdroid.views.overlay.Overlay;

import android.content.Context;
import android.util.AttributeSet;
import android.widget.FrameLayout;

/** 
 * A pseudo MapView allowing to set (and change) its TileProvider. Two key features:<br>
 * - it supports the MapsForgeTileProvider<br>
 * - and it can be defined in a layout. <br>
 * 
 * @author Salsoft, M.Kergall
 */
public class GenericMapView extends FrameLayout {

  protected MapView mMapView;

  public GenericMapView(Context context, AttributeSet attrs) 
  {
    super(context, attrs);
  }

  public void setTileProvider(MapTileProviderBase aTileProvider){
    if (mMapView != null){
      this.removeView(mMapView);
    }
    ResourceProxy resourceProxy = new DefaultResourceProxyImpl(this.getContext());
    MapView newMapView = new MapView(this.getContext(), aTileProvider.getTileSource().getTileSizePixels(), resourceProxy, aTileProvider);
    
    if (mMapView != null){
      //restore as much parameters as possible from previous map:
      IMapController mapController = newMapView.getController();
      mapController.setZoom(mMapView.getZoomLevel());
      mapController.setCenter(mMapView.getMapCenter());
      newMapView.setBuiltInZoomControls(true); //no way to get old setting
      newMapView.setMultiTouchControls(true); //no way to get old setting
      newMapView.setUseDataConnection(mMapView.useDataConnection());
      newMapView.setMapOrientation(mMapView.getMapOrientation());
      newMapView.setScrollableAreaLimit(mMapView.getScrollableAreaLimit());
      List<Overlay> overlays = mMapView.getOverlays();
      for (Overlay o:overlays)
        newMapView.getOverlays().add(o);
    }
    
    mMapView = newMapView;
    this.addView(mMapView);
  }
  
  public MapView getMapView(){
    return mMapView;
  }
}

Java Source Code List

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