Android Open Source - Android-CollectionView Collection Fragment

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Back to project page Android-CollectionView.

License

The source code is released under:

Apache License

Java Source Code

package de.wackernagel.android.collectionview.samlpe;
//from   w  w w  .  j  a v  a2  s.c  o m
import android.database.Cursor;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.LoaderManager.LoaderCallbacks;
import android.support.v4.content.Loader;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.animation.DecelerateInterpolator;
import android.widget.ProgressBar;
import android.widget.TextView;

import com.google.samples.apps.iosched.ui.widget.CollectionView;
import com.nineoldandroids.view.ViewHelper;
import com.nineoldandroids.view.ViewPropertyAnimator;

import de.wackernagel.android.collectionview.sample.R;

public class CollectionFragment extends Fragment implements LoaderCallbacks<Cursor> {
  public static final int LOADER_ID = 1;
  
  private CollectionView collectionView;
  private TextView emptyView;
  private ProgressBar progressView;
  
  @Override
  public View onCreateView( LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState ) {
    return inflater.inflate( R.layout.sample_collection_fragment_collection, container, false );
  }
  
  @Override
  public void onViewCreated( View view, Bundle savedInstanceState ) {
    collectionView = ( CollectionView ) view.findViewById( R.id.collection_view );
    emptyView = (TextView) view.findViewById( R.id.empty_text );
    progressView = (ProgressBar) view.findViewById( R.id.loading );
  }
  
  @Override
  public void onActivityCreated( Bundle savedInstanceState ) {
    super.onActivityCreated( savedInstanceState );
    
    showProgessView();
    getLoaderManager().initLoader( LOADER_ID, null, this );
  }
  
  @Override
  public Loader<Cursor> onCreateLoader( int id, Bundle args ) {
    if( id == LOADER_ID ) {
      return new CollectionCursorLoader( getActivity() );
    }
    return null;
  }

  @Override
  public void onLoadFinished( Loader<Cursor> loader, Cursor cursor ) {
    if( loader.getId() == LOADER_ID ) {
      if( cursor != null && cursor.moveToFirst() ) {
        hideEmptyView();
        
        final CollectionAdapter adapter = new CollectionAdapter( getActivity(), cursor );
           collectionView.setCollectionAdapter(adapter);
           collectionView.updateInventory( adapter.getInventory() );
      } else {
        showEmptyView();
      }
    }
  }

  @Override
  public void onLoaderReset( Loader<Cursor> loader ) {
    if( loader.getId() == LOADER_ID ) {
      
    }
  }

  public void animateReload() {
      ViewHelper.setAlpha( collectionView, 0);
      ViewPropertyAnimator.animate( collectionView ).alpha(1).setDuration( 250 ).setInterpolator(new DecelerateInterpolator());
  }
  
  private void hideEmptyView() {
      emptyView.setVisibility(View.GONE);
      progressView.setVisibility(View.GONE);
  }
  
  private void showProgessView() {
    emptyView.setVisibility( View.GONE );
    progressView.setVisibility( View.VISIBLE );
  }
  
  private void showEmptyView() {
    emptyView.setText( "Empty" );
    emptyView.setVisibility( View.VISIBLE );
    progressView.setVisibility( View.GONE );
  }
}

Java Source Code List

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