com.nadmm.airports.tfr.TfrListFragment.java Source code

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Here is the source code for com.nadmm.airports.tfr.TfrListFragment.java

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/*
 * FlightIntel for Pilots
 *
 * Copyright 2012-2016 Nadeem Hasan <nhasan@nadmm.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.nadmm.airports.tfr;

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.LocalBroadcastManager;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.TextView;

import com.nadmm.airports.ListFragmentBase;
import com.nadmm.airports.R;
import com.nadmm.airports.tfr.TfrList.Tfr;
import com.nadmm.airports.utils.TimeUtils;

import java.util.Locale;

public class TfrListFragment extends ListFragmentBase {

    private BroadcastReceiver mReceiver;
    private IntentFilter mFilter;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setHasOptionsMenu(true);

        mReceiver = new TfrReceiver();
        mFilter = new IntentFilter();
        mFilter.addAction(TfrService.ACTION_GET_TFR_LIST);
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View view = super.onCreateView(inflater, container, savedInstanceState);

        final ListView listView = getListView();
        View footer = inflater.inflate(R.layout.tfr_list_footer_view, listView, false);
        footer.setLayoutParams(
                new ListView.LayoutParams(ListView.LayoutParams.MATCH_PARENT, ListView.LayoutParams.WRAP_CONTENT));
        TextView tv = (TextView) footer.findViewById(R.id.tfr_warning_text);
        tv.setText("Depicted TFR data may not be a complete listing. Pilots should not use "
                + "the information for flight planning purposes. For the latest information, "
                + "call your local Flight Service Station at 1-800-WX-BRIEF.");
        listView.addFooterView(footer, null, false);
        listView.setFooterDividersEnabled(true);

        return view;
    }

    @Override
    public void onResume() {
        LocalBroadcastManager bm = LocalBroadcastManager.getInstance(getActivity());
        bm.registerReceiver(mReceiver, mFilter);

        super.onResume();
    }

    @Override
    public void onPause() {
        LocalBroadcastManager bm = LocalBroadcastManager.getInstance(getActivity());
        bm.unregisterReceiver(mReceiver);

        super.onPause();
    }

    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);

        setActionBarTitle("TFR List");
        setActionBarSubtitle("Loading...");

        requestTfrList(false);
    }

    @Override
    public boolean isRefreshable() {
        return true;
    }

    @Override
    public void requestDataRefresh() {
        requestTfrList(true);
    }

    @Override
    protected void onListItemClick(ListView l, View v, int position) {
        ListAdapter adapter = getListView().getAdapter();
        Tfr tfr = (Tfr) adapter.getItem(position);
        if (tfr != null) {
            Intent activity = new Intent(getActivity(), TfrDetailActivity.class);
            activity.putExtra(TfrListActivity.EXTRA_TFR, tfr);
            startActivity(activity);
        }
    }

    private void requestTfrList(boolean force) {
        Intent service = new Intent(getActivity(), TfrService.class);
        service.setAction(TfrService.ACTION_GET_TFR_LIST);
        service.putExtra(TfrService.FORCE_REFRESH, force);
        getActivity().startService(service);
    }

    private final class TfrReceiver extends BroadcastReceiver {

        @Override
        public void onReceive(Context context, Intent intent) {
            TfrList tfrList = (TfrList) intent.getSerializableExtra(TfrService.TFR_LIST);

            int count = tfrList.entries.size();
            if (count > 0) {
                TextView tv = (TextView) findViewById(R.id.tfr_fetch_time);
                tv.setText("Fetched " + TimeUtils.formatElapsedTime(tfrList.fetchTime));
                setActionBarSubtitle(String.format(Locale.US, "%d TFRs found", count));
            } else {
                setEmptyText("Unable to fetch TFR list. Please try again later");
                setActionBarSubtitle("");
            }

            TfrListAdapter adapter = new TfrListAdapter(getActivity(), tfrList);
            setAdapter(adapter);

            if (isRefreshing()) {
                setRefreshing(false);
            }
        }
    }

}