Android Open Source - hellomap3d-android My Map Event Listener

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License

The source code is released under:

MIT License

Java Source Code

package com.nutiteq.advancedmap3.listener;
// w  ww .  j a  v  a  2s  .c o m
import java.util.Locale;

import android.util.Log;

import com.nutiteq.advancedmap3.Const;
import com.nutiteq.core.MapPos;
import com.nutiteq.core.ScreenPos;
import com.nutiteq.datasources.LocalVectorDataSource;
import com.nutiteq.styles.BalloonPopupMargins;
import com.nutiteq.styles.BalloonPopupStyleBuilder;
import com.nutiteq.ui.ClickType;
import com.nutiteq.ui.MapClickInfo;
import com.nutiteq.ui.MapEventListener;
import com.nutiteq.ui.MapView;
import com.nutiteq.ui.VectorElementClickInfo;
import com.nutiteq.ui.VectorElementsClickInfo;
import com.nutiteq.vectorelements.BalloonPopup;
import com.nutiteq.vectorelements.Billboard;
import com.nutiteq.vectorelements.VectorElement;

public class MyMapEventListener extends MapEventListener {
  private MapView mapView;
  private LocalVectorDataSource vectorDataSource;
  
  private BalloonPopup oldClickLabel;
  
  public MyMapEventListener(MapView mapView, LocalVectorDataSource vectorDataSource) {
    this.mapView = mapView;
    this.vectorDataSource = vectorDataSource;
  }

  @Override
  public void onMapMoved() {

        final MapPos topLeft = mapView.screenToMap(new ScreenPos(0, 0));
        final MapPos bottomRight = mapView.screenToMap(new ScreenPos(mapView.getWidth(), mapView.getHeight()));
        Log.d(Const.LOG_TAG, mapView.getOptions().getBaseProjection().toWgs84(topLeft)
                + " " + mapView.getOptions().getBaseProjection().toWgs84(bottomRight));

  }

  @Override
  public void onMapClicked(MapClickInfo mapClickInfo) {
    Log.d(Const.LOG_TAG, "Map click!");
    
    // Remove old click label
    if (oldClickLabel != null) {
      vectorDataSource.remove(oldClickLabel);
      oldClickLabel = null;
    }
    
    BalloonPopupStyleBuilder styleBuilder = new BalloonPopupStyleBuilder();
      // Make sure this label is shown on top all other labels
      styleBuilder.setPlacementPriority(10);
    
    // Check the type of the click
    String clickMsg = null;
    if (mapClickInfo.getClickType() == ClickType.CLICK_TYPE_SINGLE) {
      clickMsg = "Single map click!";
    } else if (mapClickInfo.getClickType() == ClickType.CLICK_TYPE_LONG) {
      clickMsg = "Long map click!";
    } else if (mapClickInfo.getClickType() == ClickType.CLICK_TYPE_DOUBLE) {
      clickMsg = "Double map click!";
    } else if (mapClickInfo.getClickType() == ClickType.CLICK_TYPE_DUAL) {
      clickMsg ="Dual map click!";
    }
  
    MapPos clickPos = mapClickInfo.getClickPos();
    MapPos wgs84Clickpos = mapView.getOptions().getBaseProjection().toWgs84(clickPos);
    String msg = String.format(Locale.US, "%.4f, %.4f", wgs84Clickpos.getY(), wgs84Clickpos.getX());
    BalloonPopup clickPopup = new BalloonPopup(mapClickInfo.getClickPos(),
                           styleBuilder.buildStyle(),
                                   clickMsg,
                                   msg);
    vectorDataSource.add(clickPopup);
    oldClickLabel = clickPopup;
}

  @Override
  public void onVectorElementClicked(VectorElementsClickInfo vectorElementsClickInfo) {
    Log.d(Const.LOG_TAG, "Vector element click!");
    
    // Remove old click label
    if (oldClickLabel != null) {
      vectorDataSource.remove(oldClickLabel);
      oldClickLabel = null;
    }
    
    // Multiple vector elements can be clicked at the same time, we only care about the one
    // closest to the camera
    VectorElementClickInfo clickInfo = vectorElementsClickInfo.getVectorElementClickInfos().get(0);
    
    // Check the type of vector element
    BalloonPopup clickPopup = null;
    BalloonPopupStyleBuilder styleBuilder = new BalloonPopupStyleBuilder();
      // Configure style
      styleBuilder.setLeftMargins(new BalloonPopupMargins(0, 0, 0, 0));
      styleBuilder.setTitleMargins(new BalloonPopupMargins(6, 3, 6, 3));
      // Make sure this label is shown on top all other labels
      styleBuilder.setPlacementPriority(10);

    VectorElement vectorElement = clickInfo.getVectorElement();
    String clickText = vectorElement.getMetaDataElement("ClickText");
    if (clickText == null || clickText.length() == 0) {
      return;
    }

    if (vectorElement instanceof Billboard) {
      // If the element is billboard, attach the click label to the billboard element
      Billboard billboard = (Billboard) vectorElement;
      clickPopup = new BalloonPopup(billboard, 
                      styleBuilder.buildStyle(),
                                clickText, 
                                "");
    } else {
      // for lines and polygons set label to click location
      clickPopup = new BalloonPopup(clickInfo.getElementClickPos(),
                      styleBuilder.buildStyle(),
                                 clickText,
                                "");
    }
    vectorDataSource.add(clickPopup);
    oldClickLabel = clickPopup;
  }
}

Java Source Code List

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