Android Open Source - kluster-android Photo Grid Fragment

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License

The source code is released under:
Apache License
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Java Source Code

package com.cs446.kluster.views.fragments;
//from  w w  w  .j  a  v  a2 s  .  c  o  m
import retrofit.RestAdapter;
import android.app.Activity;
import android.app.Fragment;
import android.app.LoaderManager;
import android.content.CursorLoader;
import android.content.Loader;
import android.database.Cursor;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.GridView;
import android.widget.AdapterView.OnItemClickListener;

import com.cs446.kluster.R;
import com.cs446.kluster.data.PhotoProvider;
import com.cs446.kluster.data.PhotoProvider.PhotoOpenHelper;
import com.cs446.kluster.net.AuthKlusterRestAdapter;
import com.cs446.kluster.net.KlusterService;
import com.cs446.kluster.net.PhotosCallback;

public class PhotoGridFragment extends Fragment implements LoaderManager.LoaderCallbacks<Cursor> {
  PhotoGridAdapter mAdapter;
  String mEventId;
  String mEventName;
  
  @Override
  public void onAttach(Activity activity) {
    // TODO Auto-generated method stub
    super.onAttach(activity);
  }

  @Override
  public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.photogrid_layout, container, false);
    
    String[] cols = new String[] { "location" };
    int[]   views = new int[]   { R.id.photogrid_imgBackground };
    
    mAdapter = new PhotoGridAdapter(getActivity(), R.layout.photogridcell_layout, null, cols, views, 0);
    
    GridView gridView=(GridView)view.findViewById(R.id.photoGrid);
    gridView.setAdapter(mAdapter);
    
    gridView.setOnItemClickListener(new OnItemClickListener() {

      @Override
      public void onItemClick(AdapterView<?> arg0, View arg1, int position,
          long arg3) {
        // TODO Auto-generated method stub
        PhotoViewerFragment fragment = new PhotoViewerFragment();
        Cursor cursor=mAdapter.getCursor();
        cursor.moveToPosition(position);
        Bundle bundle = new Bundle();
        bundle.putString("url", cursor.getString(cursor.getColumnIndex(PhotoOpenHelper.COLUMN_URL)));
        bundle.putString("up", cursor.getString(cursor.getColumnIndex(PhotoOpenHelper.COLUMN_RATING_UP)));
        bundle.putString("down", cursor.getString(cursor.getColumnIndex(PhotoOpenHelper.COLUMN_RATING_DOWN)));
        bundle.putString("photoid", cursor.getString(cursor.getColumnIndex(PhotoOpenHelper.COLUMN_PHOTO_ID)));
        bundle.putString("userid", cursor.getString(cursor.getColumnIndex(PhotoOpenHelper.COLUMN_USER_ID)));
        
        fragment.setArguments(bundle);
        getFragmentManager().beginTransaction().replace(R.id.main_container, fragment).addToBackStack(fragment.toString()).commit();
      }
      
    });
    
        /* Start loader */  
        getLoaderManager().initLoader(0, null, this);  
        
        mEventName = getArguments().getString("eventname");
        getActivity().getActionBar().setTitle(mEventName);
        
        
    RestAdapter restAdapter = new AuthKlusterRestAdapter()
    .build();  
    KlusterService service = restAdapter.create(KlusterService.class);
    
    service.getPhotos(getArguments().getString("eventid"), new PhotosCallback(getActivity()));
    
    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) {
    mEventId = getArguments().getString("eventid");
    
    String[] selectionArgs = {mEventId};
    return new CursorLoader(getActivity(), PhotoProvider.CONTENT_URI, null, "eventid = ?", selectionArgs, 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
