edu.stanford.mobisocial.dungbeetle.feed.view.FeedBaseFragment.java Source code

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Here is the source code for edu.stanford.mobisocial.dungbeetle.feed.view.FeedBaseFragment.java

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/*
 * Copyright (C) 2011 The Stanford MobiSocial Laboratory
 *
 * This file is part of Musubi, a mobile social network.
 *
 *  This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */

package edu.stanford.mobisocial.dungbeetle.feed.view;

import android.app.Activity;
import android.content.ContentResolver;
import android.database.ContentObserver;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.support.v4.app.Fragment;
import android.view.ViewGroup.LayoutParams;

public abstract class FeedBaseFragment extends Fragment {

    public static final String ARG_FEED_URI = "feed_uri";
    LayoutParams LAYOUT_FULL_WIDTH = new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT);

    public static final String TAG = "ObjectsActivity";
    protected ContentObserver mFeedObserver;
    protected Uri mFeedUri;

    @Override
    public void onAttach(Activity activity) {
        super.onAttach(activity);
        mFeedObserver = new ContentObserver(new Handler(activity.getMainLooper())) {
            @Override
            public void onChange(boolean selfChange) {
                onFeedUpdated();
            }
        };
        mFeedUri = getArguments().getParcelable(ARG_FEED_URI);
    }

    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
        ContentResolver resolver = getActivity().getContentResolver();
        resolver.registerContentObserver(mFeedUri, true, mFeedObserver);
        onFeedUpdated();
    }

    @Override
    public void onDestroyView() {
        super.onDestroyView();
        getActivity().getContentResolver().unregisterContentObserver(mFeedObserver);
    }

    public abstract void onFeedUpdated();
}