Android Open Source - geoar-app Geo A R Map View

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License

The source code is released under:

Apache License

Java Source Code

/**
 * Copyright 2012 52North Initiative for Geospatial Open Source Software GmbH
 *//www. ja  v a2  s  .  c  o m
 * 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 org.n52.geoar.map.view;

import org.mapsforge.android.maps.MapView;

import android.content.Context;

/**
 * Extension of {@link MapView} by a zoom event.
 */
public class GeoARMapView extends MapView {

  interface OnZoomChangeListener {
    void onZoomChange();
  }

  private OnZoomChangeListener mZoomChangeListener;

  public GeoARMapView(Context context) {
    super(context);
  }

  public void setOnZoomChangeListener(OnZoomChangeListener zoomChangeListener) {
    this.mZoomChangeListener = zoomChangeListener;
  }

  @Override
  public boolean zoom(byte arg0, float arg1) {
    boolean returnValue = super.zoom(arg0, arg1);
    if (mZoomChangeListener != null) {
      post(new Runnable() {
        @Override
        public void run() {
          // XXX
          // Posting a Runnable ensures that event handlers will be
          // called after zoom got handled by mapsforge API
          if (mZoomChangeListener != null) {
            mZoomChangeListener.onZoomChange();
          }
        }
      });
    }
    return returnValue;
  }

}

Java Source Code List

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