org.mariotaku.twidere.fragment.TrendsFragment.java Source code

Introduction

Here is the source code for org.mariotaku.twidere.fragment.TrendsFragment.java

Source

/*
 *            Twidere - Twitter client for Android
 * 
 * Copyright (C) 2012 Mariotaku Lee <mariotaku.lee@gmail.com>
 *
 * 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 3 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, see <http://www.gnu.org/licenses/>.
 */

package org.mariotaku.twidere.fragment;

import static org.mariotaku.twidere.util.Utils.getDefaultAccountId;
import static org.mariotaku.twidere.util.Utils.getTableNameByUri;
import static org.mariotaku.twidere.util.Utils.openTweetSearch;

import org.mariotaku.twidere.app.TwidereApplication;
import org.mariotaku.twidere.model.Panes;
import org.mariotaku.twidere.provider.TweetStore.CachedTrends;
import org.mariotaku.twidere.util.AsyncTwitterWrapper;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.SharedPreferences;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.app.LoaderManager.LoaderCallbacks;
import android.support.v4.content.CursorLoader;
import android.support.v4.content.Loader;
import android.support.v4.widget.SimpleCursorAdapter;
import android.view.View;
import android.widget.ListView;

public class TrendsFragment extends PullToRefreshListFragment implements LoaderCallbacks<Cursor>, Panes.Left {

    private TwidereApplication mApplication;
    private AsyncTwitterWrapper mTwitterWrapper;
    private SharedPreferences mPreferences;

    private TrendsAdapter mTrendsAdapter;

    private long mAccountId;

    private final BroadcastReceiver mStatusReceiver = new BroadcastReceiver() {

        @Override
        public void onReceive(final Context context, final Intent intent) {
            final String action = intent.getAction();
            if (BROADCAST_TRENDS_UPDATED.equals(action)) {
                onRefreshComplete();
                getLoaderManager().restartLoader(0, null, TrendsFragment.this);
            }
        }
    };

    @Override
    public void onActivityCreated(final Bundle savedInstanceState) {
        mTwitterWrapper = getTwitterWrapper();
        mPreferences = getSharedPreferences(SHARED_PREFERENCES_NAME, Context.MODE_PRIVATE);
        super.onActivityCreated(savedInstanceState);
        mApplication = getApplication();
        mAccountId = getDefaultAccountId(getActivity());
        mTrendsAdapter = new TrendsAdapter(getActivity());
        setListAdapter(mTrendsAdapter);
        getLoaderManager().initLoader(0, null, this);
    }

    @Override
    public Loader<Cursor> onCreateLoader(final int id, final Bundle args) {
        final Uri uri = CachedTrends.Local.CONTENT_URI;
        final String table = getTableNameByUri(uri);
        final String where = table != null
                ? CachedTrends.TIMESTAMP + " = " + "(SELECT " + CachedTrends.TIMESTAMP + " FROM " + table
                        + " ORDER BY " + CachedTrends.TIMESTAMP + " DESC LIMIT 1)"
                : null;
        return new CursorLoader(getActivity(), uri, CachedTrends.COLUMNS, where, null, null);
    }

    @Override
    public void onListItemClick(final ListView l, final View v, final int position, final long id) {
        if (mApplication.isMultiSelectActive())
            return;
        final Cursor cur = (Cursor) mTrendsAdapter.getItem(position - l.getHeaderViewsCount());
        if (cur == null)
            return;
        openTweetSearch(getActivity(), mAccountId, cur.getString(cur.getColumnIndex(CachedTrends.NAME)));
    }

    @Override
    public void onLoaderReset(final Loader<Cursor> loader) {
        mTrendsAdapter.swapCursor(null);
    }

    @Override
    public void onLoadFinished(final Loader<Cursor> loader, final Cursor cursor) {
        mTrendsAdapter.swapCursor(cursor);
    }

    @Override
    public void onPullDownToRefresh() {
        mTwitterWrapper.getLocalTrends(mAccountId, mPreferences.getInt(PREFERENCE_KEY_LOCAL_TRENDS_WOEID, 1));
    }

    @Override
    public void onPullUpToRefresh() {

    }

    @Override
    public void onStart() {
        super.onStart();
        final IntentFilter filter = new IntentFilter(BROADCAST_TRENDS_UPDATED);
        registerReceiver(mStatusReceiver, filter);
        if (mTwitterWrapper.isLocalTrendsRefreshing()) {
            setRefreshing(false);
        }
    }

    @Override
    public void onStop() {
        unregisterReceiver(mStatusReceiver);
        super.onStop();
    }

    static class TrendsAdapter extends SimpleCursorAdapter {

        public TrendsAdapter(final Context context) {
            super(context, android.R.layout.simple_list_item_1, null, new String[] { CachedTrends.NAME },
                    new int[] { android.R.id.text1 }, 0);
        }

    }

}