Android Open Source - kluster-android Event Grid Fragment

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License

The source code is released under:

Apache License

Java Source Code

package com.cs446.kluster.views.fragments;
/*  w  ww.  j  a  va  2 s.  com*/
import retrofit.RestAdapter;
import android.app.Fragment;
import android.app.LoaderManager;
import android.content.Context;
import android.content.CursorLoader;
import android.content.Loader;
import android.database.Cursor;
import android.location.Location;
import android.location.LocationManager;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.GridView;

import com.cs446.kluster.R;
import com.cs446.kluster.data.EventProvider;
import com.cs446.kluster.map.MapUtils;
import com.cs446.kluster.net.AuthKlusterRestAdapter;
import com.cs446.kluster.net.EventsCallback;
import com.cs446.kluster.net.KlusterService;
import com.google.android.gms.maps.model.LatLng;

public class EventGridFragment extends Fragment implements LoaderManager.LoaderCallbacks<Cursor> {
  EventGridAdapter mAdapter;
  
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    
      LocationManager locationManager = (LocationManager) getActivity().getSystemService(Context.LOCATION_SERVICE);
      Location lastKnown = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
      String current = lastKnown.getLongitude() + "," + lastKnown.getLatitude();
    RestAdapter restAdapter = new AuthKlusterRestAdapter()
    .build();  
    KlusterService service = restAdapter.create(KlusterService.class);
    
    service.getEvents(current, Integer.toString(25000), new EventsCallback(getActivity()));
  }
  
  @Override
  public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.eventgrid_layout, container, false);
    
    String[] cols = new String[] { "location" };
    int[]   views = new int[]   { R.id.eventgrid_txtTitle };
    
    mAdapter = new EventGridAdapter(getActivity(), R.layout.eventgridcell_layout, null, cols, views, 0);
    
    GridView gridView=(GridView)view.findViewById(R.id.eventGrid);
    gridView.setAdapter(mAdapter);

        /* Start loader */  
        getLoaderManager().initLoader(0, null, this);   
        
        setHasOptionsMenu(true);
        getActivity().getActionBar().setTitle("Discover");
        
    return view;
  }
    
  @Override
  public void onActivityCreated(Bundle savedInstanceState) {
    super.onActivityCreated(savedInstanceState);
    
    if (getActivity().getFragmentManager().getBackStackEntryCount() > 0) {
      getActivity().getActionBar().setDisplayHomeAsUpEnabled(true);
    }
  }
  
  @Override
  public Loader<Cursor> onCreateLoader(int loaderID, Bundle bundle) {
    return new CursorLoader(getActivity(), EventProvider.CONTENT_URI, null, null, null, null);
  }
    
  @Override
  public void onLoadFinished(Loader<Cursor> loader, Cursor cursor) {
    mAdapter.changeCursor(cursor);
  }
  
  @Override
  public void onLoaderReset(Loader<Cursor> loader) {
    mAdapter.changeCursor(null);
  }
}

Java Source Code List

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