Android Open Source - AQUArinthia Map Activity

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Back to project page AQUArinthia.
License

The source code is released under:
GNU General Public License
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Java Source Code

package at.theengine.android.aquarinthhia;
//  w  ww .  j a  v a 2 s  .  c  om
import java.util.ArrayList;

import android.location.Location;
import android.os.Bundle;
import android.content.Context;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.FrameLayout;
import android.widget.ImageView;
import android.widget.ProgressBar;
import android.widget.Toast;
import android.support.v4.app.FragmentActivity;
import at.theengine.android.bestlocation.BestLocationListener;
import at.theengine.android.bestlocation.BestLocationProvider;
import at.theengine.android.bestlocation.BestLocationProvider.LocationType;

import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.SupportMapFragment;    
import com.google.android.gms.maps.model.BitmapDescriptorFactory;
import com.google.android.gms.maps.model.LatLng;

public class MapActivity extends FragmentActivity {

  private ProgressBar mPbLoading;
  private boolean mIsRainLoaded;
  private boolean mIsLakesLoaded;
  private boolean mIsRiversLoaded;
  
  private BestLocationListener mBestLocationListener;
  BestLocationProvider mBestLocationProvider;
  
  private DataLoader mDataLoader;
  
  private GoogleMap mMap;
  
  private Context mContext;
  
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_map);
  }
  
  private void moveToMe(){
    if(mBestLocationListener == null || mBestLocationProvider == null){
      mBestLocationListener = new BestLocationListener() {
  
        @Override
        public void onLocationUpdate(Location location, LocationType type,
            boolean isFresh) {
          
          mMap.moveCamera(CameraUpdateFactory.newLatLng(new LatLng(location.getLatitude(), location.getLongitude())));
              mMap.animateCamera(CameraUpdateFactory.zoomTo(10), 2000, null);
              
              if(isFresh && type == LocationType.GPS){
                mBestLocationProvider.stopLocationUpdates();
              }
        }
  
        @Override
        public void onLocationUpdateTimeoutExceeded(LocationType type) {
          mBestLocationProvider.stopLocationUpdates();
        }
  
        @Override
        public void onStatusChanged(String provider, int status, Bundle extras) { }
  
        @Override
        public void onProviderEnabled(String provider) { }
  
        @Override
        public void onProviderDisabled(String provider) { }
        
      };
      
      mBestLocationProvider = new BestLocationProvider(this, true, true, 10000, 1000, 2, 0);
    }
    
    //start Location Updates
    mBestLocationProvider.startLocationUpdatesWithListener(mBestLocationListener);
  }
  
  @Override
  protected void onStop() {
    mBestLocationProvider.stopLocationUpdates();
    super.onStop();
  }
  
  @Override
  protected void onResume() {
    setupActionBar();
    
    mMap = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map)).getMap();
    mMap.setMyLocationEnabled(true);
    
    mContext = this;
    
    refreshData();
    
    moveToMe();
    super.onResume();
  }

  /**
   * Set up the {@link android.app.ActionBar}.
   */
  private void setupActionBar() {
    getActionBar().setDisplayHomeAsUpEnabled(true);
        getActionBar().setHomeButtonEnabled(true);
        
        getActionBar().setIcon(R.drawable.aquarinthia);
        
        getActionBar().setDisplayShowTitleEnabled(false);
        
        getActionBar().setCustomView(R.layout.ab_view_main);
        getActionBar().setDisplayShowCustomEnabled(true);

        getActionBar().setDisplayHomeAsUpEnabled(true);
        
        mPbLoading = (ProgressBar) getActionBar().getCustomView().findViewById(R.id.pbLoading);
  }
  
  private void refreshData(){
    mMap.clear();
    
    mPbLoading.setVisibility(View.VISIBLE);
    mIsLakesLoaded = false;
    mIsRainLoaded = false;
    mIsRiversLoaded = false;
    
    if(mDataLoader == null){
      mDataLoader = new DataLoader(mContext, new DataLoaderCallback() {
        
        @Override
        public void onRainDataLoaded(ArrayList<RainData> items) {
          mIsRainLoaded = true;
          drawRainMarkers(items);
          hideLoading();
        }
        
        @Override
        public void onDataLoadingError(Exception ex) {
          Toast.makeText(mContext, ex.getLocalizedMessage(), Toast.LENGTH_LONG).show();
        }

        @Override
        public void onLakeDataLoaded(ArrayList<LakeData> items) {
          mIsLakesLoaded = true;
          drawLakeMarkers(items);
          hideLoading();
        }

        @Override
        public void onRiverDataLoaded(ArrayList<RiverData> items) {
          mIsRiversLoaded = true;
          drawRiverMarkers(items);
          hideLoading();
        }
      });
    }
    
    mDataLoader.clearCache();
    mDataLoader.loadData();
  }
  
  private void hideLoading(){
    if(mIsLakesLoaded && mIsRainLoaded && mIsRiversLoaded){
      mPbLoading.setVisibility(View.GONE);
    }
  }

  private void drawRainMarkers(ArrayList<RainData> items){
    for(int i = 0; i < items.size(); i++){
      int icon = R.drawable.marker_rain_no;
      int rain = Integer.parseInt(items.get(i).getRain().replace("mm", ""));
      
      if(rain > 50){
        icon = R.drawable.marker_rain_heavy;
      } else if(rain > 10){
        icon = R.drawable.marker_rain_medium;
      } else if(rain > 0){
        icon = R.drawable.marker_rain_low;
      }
      
      mMap.addMarker(new com.google.android.gms.maps.model.MarkerOptions()
          .position(new LatLng(items.get(i).getLat(), items.get(i).getLng()))
          .title(items.get(i).getLocationName())
          .snippet("Niederschlag: " + items.get(i).getRain() + " - " + 
              "Temperatur: " + items.get(i).getTemp())
          .icon(BitmapDescriptorFactory
              .fromResource(icon)));
    }
  }
  
  private void drawLakeMarkers(ArrayList<LakeData> items){
    for(int i = 0; i < items.size(); i++){
      int icon = R.drawable.height;
      
      mMap.addMarker(new com.google.android.gms.maps.model.MarkerOptions()
          .position(new LatLng(items.get(i).getLat(), items.get(i).getLng()))
          .title(items.get(i).getLakeName())
          .snippet("Pegel: " + items.get(i).getHeight() + " - " + 
                "Wassertemperatur: " + items.get(i).getTemp())
          .icon(BitmapDescriptorFactory
              .fromResource(icon)));
    }
  }
  
  private void drawRiverMarkers(ArrayList<RiverData> items){
    for(int i = 0; i < items.size(); i++){
      int icon = R.drawable.marker_river;
      
      mMap.addMarker(new com.google.android.gms.maps.model.MarkerOptions()
          .position(new LatLng(items.get(i).getLat(), items.get(i).getLng()))
          .title(items.get(i).getRiverName())
          .snippet("Pegel: " + items.get(i).getHeight() + " - " + 
                "Abfluss: " + items.get(i).getMass())
          .icon(BitmapDescriptorFactory
              .fromResource(icon)));
    }
  }
  
  @Override
   public boolean onCreateOptionsMenu(Menu menu) {
    getMenuInflater().inflate(R.menu.map, menu);
    return true;
  }

  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    switch (item.getItemId()) {
    case android.R.id.home:
      this.finish();
      return true;
    case R.id.action_refresh:
      refreshData();
      break;
    }
    
    return super.onOptionsItemSelected(item);
  }

}
Java Source Code List
