com.androzic.GPSInfo.java Source code

Introduction

Here is the source code for com.androzic.GPSInfo.java

Source

/*
 * Androzic - android navigation client that uses OziExplorer maps (ozf2, ozfx3).
 * Copyright (C) 2010-2014 Andrey Novikov <http://andreynovikov.info/>
 * 
 * This file is part of Androzic application.
 * 
 * Androzic 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.
 * 
 * Androzic 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 Androzic. If not, see <http://www.gnu.org/licenses/>.
 */

package com.androzic;

import java.util.Date;

import android.annotation.SuppressLint;
import android.app.Dialog;
import android.content.Context;
import android.content.DialogInterface;
import android.location.LocationManager;
import android.os.Bundle;
import android.support.v4.app.DialogFragment;
import android.support.v7.app.AlertDialog;
import android.text.format.DateFormat;
import android.view.View;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.widget.TextView;

import com.androzic.location.LocationService;
import com.androzic.util.StringFormatter;

public class GPSInfo extends DialogFragment {
    private TextView satsValue;
    private TextView lastfixValue;
    private TextView accuracyValue;
    private TextView hdopValue;
    private TextView vdopValue;

    protected Androzic application;

    protected Animation shake;

    public GPSInfo() {
        application = Androzic.getApplication();
    }

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

    @SuppressLint("InflateParams")
    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        shake = AnimationUtils.loadAnimation(getActivity(), R.anim.shake);

        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
        builder.setTitle(getString(R.string.information_name));
        View view = getActivity().getLayoutInflater().inflate(R.layout.dlg_gps_info, null);
        builder.setView(view);
        builder.setPositiveButton(R.string.ok, new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog, int whichButton) {
                GPSInfo.this.dismiss();
            }
        });
        builder.setNeutralButton(R.string.update_almanac, updateOnClickListener);

        satsValue = (TextView) view.findViewById(R.id.sats);
        lastfixValue = (TextView) view.findViewById(R.id.lastfix);
        accuracyValue = (TextView) view.findViewById(R.id.accuracy);
        hdopValue = (TextView) view.findViewById(R.id.hdop);
        vdopValue = (TextView) view.findViewById(R.id.vdop);

        //TODO Make it update periodically
        updateGPSInfo();

        return builder.create();
    }

    @Override
    public void onDestroyView() {
        if (getDialog() != null && getRetainInstance())
            getDialog().setDismissMessage(null);
        super.onDestroyView();
    }

    private void updateGPSInfo() {
        switch (application.gpsStatus) {
        case LocationService.GPS_OK:
            satsValue.setText(String.valueOf(application.gpsFSats) + "/" + String.valueOf(application.gpsTSats));
            break;
        case LocationService.GPS_OFF:
            satsValue.setText(R.string.sat_stop);
            break;
        case LocationService.GPS_SEARCHING:
            satsValue.setText(String.valueOf(application.gpsFSats) + "/" + String.valueOf(application.gpsTSats));
            satsValue.startAnimation(shake);
            break;
        }
        float hdop = application.getHDOP();
        if (!Float.isNaN(hdop))
            hdopValue.setText(String.format("%.1f", hdop));
        float vdop = application.getVDOP();
        if (!Float.isNaN(vdop))
            vdopValue.setText(String.format("%.1f", vdop));

        if (application.lastKnownLocation != null) {
            Date date = new Date(application.lastKnownLocation.getTime());
            lastfixValue.setText(DateFormat.getDateFormat(application).format(date) + " "
                    + DateFormat.getTimeFormat(application).format(date));
            accuracyValue.setText(application.lastKnownLocation.hasAccuracy()
                    ? StringFormatter.distanceH(application.lastKnownLocation.getAccuracy(), "%.1f", 1000)
                    : "N/A");
        }
    }

    private DialogInterface.OnClickListener updateOnClickListener = new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int which) {
            LocationManager locationManager = (LocationManager) application
                    .getSystemService(Context.LOCATION_SERVICE);
            if (locationManager != null) {
                locationManager.sendExtraCommand(LocationManager.GPS_PROVIDER, "force_xtra_injection", null);
                locationManager.sendExtraCommand(LocationManager.GPS_PROVIDER, "force_time_injection", null);
            }
        }
    };

}