Android Open Source - twitt4droid Home Timeline Fragment

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License

The source code is released under:

Apache License

Java Source Code

/*
 * Copyright 2014 Daniel Pedraza-Arcega/*from  w w  w .  j  av  a 2 s. com*/
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.twitt4droid.fragment;

import android.os.Bundle;

import com.twitt4droid.R;
import com.twitt4droid.data.dao.TimelineDAO;
import com.twitt4droid.data.dao.impl.DAOFactory;

import twitter4j.TwitterException;

import java.util.List;

/**
 * Shows the 20 most recent statuses, including retweets, posted by the authenticating user and that
 * user's friends.
 * 
 * @author Daniel Pedraza-Arcega
 * @since version 1.0
 */
public class HomeTimelineFragment extends TimelineFragment {

    /**
     * Creates a HomeTimelineFragment.
     * 
     * @param enableDarkTheme if the dark theme is enabled.
     * @return a new HomeTimelineFragment.
     */
    public static HomeTimelineFragment newInstance(boolean enableDarkTheme) {
        HomeTimelineFragment fragment = new HomeTimelineFragment();
        Bundle args = new Bundle();
        args.putBoolean(ENABLE_DARK_THEME_ARG, enableDarkTheme);
        fragment.setArguments(args);
        return fragment;
    }

    /**
     * Creates a HomeTimelineFragment.
     * 
     * @return a new HomeTimelineFragment.
     */
    public static HomeTimelineFragment newInstance() {
        return newInstance(false);
    }

    /** {@inheritDoc} */
    @Override
    protected HomeStatusesLoaderTask initStatusesLoaderTask() {
        return new HomeStatusesLoaderTask(new DAOFactory(getActivity().getApplicationContext()).getHomeTimelineDAO());
    }

    /** {@inheritDoc} */
    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
        initStatusesLoaderTask().execute();
    }

    /** {@inheritDoc} */
    @Override
    public int getResourceTitle() {
        return R.string.twitt4droid_home_timeline_fragment_title;
    }

    /** {@inheritDoc} */
    @Override
    public int getResourceHoloLightIcon() {
        return R.drawable.twitt4droid_ic_home_holo_light;
    }

    /** {@inheritDoc} */
    @Override
    public int getResourceHoloDarkIcon() {
        return R.drawable.twitt4droid_ic_home_holo_dark;
    }

    /**
     * Loads twitter statuses asynchronously.
     * 
     * @author Daniel Pedraza-Arcega
     * @since version 1.0
     */
    private class HomeStatusesLoaderTask extends StatusesLoaderTask {

        /**
         * Creates a HomeStatusesLoaderTask.
         * 
         * @param timelineDao a TimelineDAO.
         */
        protected HomeStatusesLoaderTask(TimelineDAO timelineDao) {
            super(timelineDao);
        }

        /** {@inheritDoc} */
        @Override
        protected List<twitter4j.Status> loadTweetsInBackground() throws TwitterException {
            TimelineDAO timelineDAO = (TimelineDAO) getDAO();
            List<twitter4j.Status> statuses = null;
            if (isConnectedToInternet()) {
                statuses = getTwitter().getHomeTimeline();
                // TODO: update statuses instead of deleting all previous statuses and save new ones.
                timelineDAO.deleteAll();
                timelineDAO.save(statuses);
            } else statuses = timelineDAO.fetchList();
            return statuses;
        }
    }
}

Java Source Code List

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