Android Open Source - watchme Content List Fragment

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Back to project page watchme.

License

The source code is released under:

Copyright (c) 2012 Johan Brook, Robin Andersson, Lisa Stenberg, Mattias Henriksson Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documen...

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Java Source Code

/**
 *  ContentListFragment.java// www. j  a v a 2 s  . co m
 * 
 *  An abstract class that is a ListFragment presenting data from a Content Provider.
 * 
 *  @author lisastenberg
 *  @copyright (c) 2012 Johan Brook, Robin Andersson, Lisa Stenberg, Mattias Henriksson
 *  @license MIT
 */

package se.chalmers.watchme.ui;

import se.chalmers.watchme.database.DatabaseAdapter;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.app.ListFragment;
import android.support.v4.app.LoaderManager;
import android.support.v4.content.Loader;
import android.support.v4.widget.SimpleCursorAdapter;

public abstract class ContentListFragment extends ListFragment implements
    LoaderManager.LoaderCallbacks<Cursor> {

  private Uri uri;
  private SimpleCursorAdapter adapter;

  protected DatabaseAdapter db;

  /**
   * Creates a new ContentListFragment with a Uri.
   * 
   * @param uri
   *            The uri
   */
  public ContentListFragment(Uri uri) {
    this.uri = uri;
  }

  @Override
  public void onActivityCreated(Bundle b) {
    super.onActivityCreated(b);
    Thread.currentThread().setContextClassLoader(
        getActivity().getClassLoader());
    
    db = new DatabaseAdapter(getActivity().getContentResolver());
    
    setHasOptionsMenu(true);
  }

  /**
   * Return the Uri
   * 
   * @return the Uri
   */
  public Uri getUri() {
    return uri;
  }

  @Override
  public void onLoadFinished(Loader<Cursor> arg0, Cursor cursor) {
    adapter.swapCursor(cursor);
    adapter.notifyDataSetChanged();
  }

  @Override
  public void onLoaderReset(Loader<Cursor> arg0) {
    // data is not available anymore, delete reference
    adapter.swapCursor(null);
    adapter.notifyDataSetChanged();
  }

  /**
   * Return the CursorAdapter of the fragment
   * 
   * @return the CursorAdapter of the fragment.
   */
  public SimpleCursorAdapter getAdapter() {
    return adapter;
  }

  /**
   * Set the adapter of the fragment.
   */
  protected void setAdapter(SimpleCursorAdapter adapter) {
    this.adapter = adapter;
    setListAdapter(this.adapter);
  }
}

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