com.dwdesign.tweetings.fragment.UserFavoritesFragment.java Source code

Introduction

Here is the source code for com.dwdesign.tweetings.fragment.UserFavoritesFragment.java

Source

/*
 *            Tweetings - Twitter client for Android
 * 
 * Copyright (C) 2012-2013 RBD Solutions Limited <apps@tweetings.net>
 * 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 com.dwdesign.tweetings.fragment;

import java.util.List;

import static com.dwdesign.tweetings.util.Utils.isNullOrEmpty;
import static com.dwdesign.tweetings.util.Utils.getAccountScreenName;
import com.dwdesign.tweetings.loader.UserFavoritesLoader;
import com.dwdesign.tweetings.model.ParcelableStatus;
import com.dwdesign.tweetings.util.SynchronizedStateSavedList;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.support.v4.content.Loader;

public class UserFavoritesFragment extends ParcelableStatusesListFragment {

    private long mUserId;
    private long mAccountId;
    private boolean isVisibleToUser = false;

    // Begin Sync Code
    private final BroadcastReceiver receiver = new BroadcastReceiver() {

        @Override
        public void onReceive(final Context context, final Intent intent) {
            final String action = intent.getAction();
            if (BROADCAST_VOLUME_UP.equals(action)) {
                if (isVisible()) {
                    int currentPosition = getListView().getFirstVisiblePosition();
                    if (currentPosition == 0)
                        return;
                    getListView().setSelection(currentPosition - 1);
                    getListView().clearFocus();
                }
            } else if (BROADCAST_VOLUME_DOWN.equals(action)) {
                if (isVisible()) {
                    int currentPosition = getListView().getFirstVisiblePosition();
                    if (currentPosition == getListView().getCount() - 1)
                        return;
                    getListView().setSelection(currentPosition + 1);
                    getListView().clearFocus();
                }
            }
        }
    };

    @Override
    public void setMenuVisibility(final boolean visible) {
        super.setMenuVisibility(visible);
        isVisibleToUser = visible;
    }

    @Override
    public void onResume() {
        super.onResume();
        IntentFilter filter = new IntentFilter();
        filter.addAction(BROADCAST_VOLUME_UP);
        filter.addAction(BROADCAST_VOLUME_DOWN);
        registerReceiver(receiver, filter);
    }

    @Override
    public void onPause() {
        super.onPause();
        unregisterReceiver(receiver);
    }

    private final BroadcastReceiver mStateReceiver = new BroadcastReceiver() {

        @Override
        public void onReceive(final Context context, final Intent intent) {
            final String action = intent.getAction();
            if (BROADCAST_FAVORITE_CHANGED.equals(action)) {
                final long status_id = intent.getLongExtra(INTENT_KEY_STATUS_ID, -1);
                if (intent.getLongExtra(INTENT_KEY_USER_ID, -1) == mUserId && status_id > 0
                        && !intent.getBooleanExtra(INTENT_KEY_FAVORITED, true)) {
                    deleteStatus(status_id);
                }
            }
        }

    };

    @Override
    public void scrollToStatusId(long statusId) {

    }

    private boolean mIsStatusesSaved = false;

    @Override
    public Loader<SynchronizedStateSavedList<ParcelableStatus, Long>> newLoaderInstance(final Bundle args) {
        long account_id = -1, user_id = -1, max_id = -1, since_id = -1;
        String screen_name = null;
        boolean is_home_tab = false;
        if (args != null) {
            account_id = args.getLong(INTENT_KEY_ACCOUNT_ID);
            user_id = args.getLong(INTENT_KEY_USER_ID, -1);
            if (user_id > 0) {
                mUserId = user_id;
            }
            max_id = args.getLong(INTENT_KEY_MAX_ID, -1);
            since_id = args.getLong(INTENT_KEY_SINCE_ID, -1);
            screen_name = args.getString(INTENT_KEY_SCREEN_NAME);
            is_home_tab = args.getBoolean(INTENT_KEY_IS_HOME_TAB);
        }
        return new UserFavoritesLoader(getActivity(), account_id, user_id, screen_name, max_id, since_id, getData(),
                getClass().getSimpleName(), is_home_tab);
    }

    @Override
    public void onDestroy() {
        saveStatuses();
        super.onDestroy();
    }

    @Override
    public void onDestroyView() {
        saveStatuses();
        super.onDestroyView();
    }

    @Override
    public void onStart() {
        super.onStart();
        final IntentFilter filter = new IntentFilter(BROADCAST_FAVORITE_CHANGED);
        registerReceiver(mStateReceiver, filter);
    }

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

    private void saveStatuses() {
        if (mIsStatusesSaved)
            return;
        final int first_visible_position = getListView().getFirstVisiblePosition();
        final long status_id = getListAdapter().findItemIdByPosition(first_visible_position);
        UserFavoritesLoader.writeSerializableStatuses(this, getActivity(), getData(), status_id, getArguments());
        mIsStatusesSaved = true;
    }

}