Android Open Source - disconnected-content-explorer-android Report Map Fragment

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License

The source code is released under:

MIT License

Java Source Code

package mil.nga.dice.map;
/*from   w ww .j  ava 2 s.com*/
import android.app.Fragment;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.support.v4.content.LocalBroadcastManager;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.GoogleMap.*;
import com.google.android.gms.maps.MapView;
import com.google.android.gms.maps.MapsInitializer;
import com.google.android.gms.maps.model.BitmapDescriptorFactory;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.Marker;
import com.google.android.gms.maps.model.MarkerOptions;
import com.vividsolutions.jts.geom.Geometry;
import mil.nga.dice.R;
import mil.nga.dice.report.Report;
import mil.nga.dice.report.ReportDetailActivity;
import mil.nga.dice.report.ReportManager;

import java.util.Collection;
import java.util.Iterator;
import java.util.List;

public class ReportMapFragment extends Fragment implements OnMapClickListener, OnMarkerClickListener, OnMapLongClickListener, OfflineMapLoader.OnOfflineFeaturesListener {

  private List<Report> mReports;
  private MapView mMapView;
  private GoogleMap mMap;
  private OfflineMap mOfflineMap;
  private OfflineMapLoader mOfflineMapLoader;
  
  private static final String TAG = "ReportMapFragment";
  
  public ReportMapFragment() {} 
  
  
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    mReports = ReportManager.getInstance().getReports();
    mOfflineMapLoader = new OfflineMapLoader(getActivity().getApplicationContext());
    mOfflineMapLoader.registerOfflineMapListener(this);
    LocalBroadcastManager bm = LocalBroadcastManager.getInstance(getActivity().getApplicationContext());
    bm.registerReceiver(new BroadcastReceiver() {
      @Override
      public void onReceive(Context context, Intent intent) {
        refreshMapMarkers();
      }
    }, new IntentFilter(ReportManager.INTENT_UPDATE_REPORT_LIST));
  }

  
  @Override 
  public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    final View view = inflater.inflate(R.layout.activity_report_map, container, false);
    
    mMapView = (MapView) view.findViewById(R.id.map);
    mMapView.onCreate(savedInstanceState);
    
    MapsInitializer.initialize(getActivity().getApplicationContext());
    refreshMapMarkers();
    
    return view;
  }
  
  
  public void refreshMapMarkers () {
    if (mMap == null) {
      return;
    }

    mMap.clear();

    for (Report report : mReports) {
      if (report.getLat() != null && report.getLon() != null) {
        MarkerOptions marker = new MarkerOptions().position(new LatLng(report.getLat(), report.getLon())).title(report.getTitle());
        marker.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_RED));
        mMap.addMarker(marker);

        LatLng latLng = new LatLng(report.getLat(), report.getLon());
        float zoom = mMap.getCameraPosition().zoom < 1 ? 1 : mMap.getCameraPosition().zoom;
        mMap.animateCamera(CameraUpdateFactory.newLatLngZoom(latLng, zoom), new CancelableCallback() {
          @Override
          public void onCancel() {
            // TODO
          }
          @Override
          public void onFinish() {
            // TODO
          }
        });
      }
    }
  }
  
  
  @Override
  public void onResume() {
    super.onResume();
    mMapView.onResume();
    
    if (mMap == null) {
      mMap = mMapView.getMap();
      mMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
      
      LatLng latLng = new LatLng(0.0, 0.0);
      float zoom = mMap.getCameraPosition().zoom < 1 ? 1 : mMap.getCameraPosition().zoom;
      mMap.animateCamera(CameraUpdateFactory.newLatLngZoom(latLng, zoom), new CancelableCallback() {
        @Override
        public void onCancel() {
          // TODO
        }
        @Override
        public void onFinish() {
          // TODO
        }
      });
      
      mMap.setOnInfoWindowClickListener(new OnInfoWindowClickListener() {
              @Override
              public void onInfoWindowClick(Marker marker) {
                String title = marker.getTitle();
                Report targetReport = null, currentReport;
          Iterator<Report> cursor = mReports.iterator();
          while (cursor.hasNext() && targetReport == null) {
            currentReport = cursor.next();
            if (currentReport.getTitle().equalsIgnoreCase(title)) {
              targetReport = currentReport;
            }
          }
                Intent detailIntent = new Intent(getActivity(), ReportDetailActivity.class);
            detailIntent.putExtra("report", targetReport);
            startActivity(detailIntent);
              }
          });
    }
    
    mMap.setOnMapClickListener(this);
    mMap.setOnMarkerClickListener(this);
    mMap.setOnMapLongClickListener(this);

    refreshMapMarkers();
  }

  
  @Override
  public void onPause () {
    super.onPause();
    mMapView.onPause();
  }

  
  @Override
  public void onLowMemory() {
    super.onLowMemory();
    mMapView.onLowMemory();
  }


  @Override
  public void onMapLongClick(LatLng arg0) {
    // TODO Auto-generated method stub
    
  }


  @Override
  public boolean onMarkerClick(Marker arg0) {
    // TODO Auto-generated method stub
    return false;
  }


  @Override
  public void onMapClick(LatLng arg0) {
    // TODO Auto-generated method stub
    
  }


  @Override
  public void onOfflineFeaturesLoaded(Collection<Geometry> offlineFeatures) {
    mOfflineMap = new OfflineMap(getActivity().getApplicationContext(), mMap, offlineFeatures);
    mOfflineMap.setVisible(true);
  }
}

Java Source Code List

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