package com.androidworks.navsys.wuffit.activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.database.Cursor;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.LinearLayout;
import android.widget.Toast;
import com.androidworks.navsys.wuffit.R;
import com.androidworks.navsys.wuffit.content.Tracker;
import com.google.android.maps.*;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.List;
public class DisplayLocation extends MapActivity {
private MapView mapView;
private MyLocationOverlay myLocationOverlay;
private TrackerItemizedOverlay normalTrackerItems;
private TrackerItemizedOverlay warningTrackerItems;
private static final int ALERT_MAP_LOCATION = 100;
private String itemDetails;
private AlertDialog itemDetailsDialog;
/**
* Called when the activity is first created.
*/
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.display_location);
findViewById(R.id.main_menu).setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
// Go to select trackers screen
Intent intent = new Intent("com.androidworks.navsys.wuffit.ACTION_MAIN_MENU");
intent.addCategory(Intent.CATEGORY_DEFAULT);
startActivity(intent);
}
});
mapView = (MapView) findViewById(R.id.display_location);
// mapView.getController().setZoom(12);
myLocationOverlay = new MyLocationOverlay(this, mapView);
myLocationOverlay.runOnFirstFix(new Runnable() {
public void run() {
mapView.getController().animateTo(myLocationOverlay.getMyLocation());
}
});
Drawable defaultMarker = getResources().getDrawable(android.R.drawable.presence_online);
Drawable warning = getResources().getDrawable(android.R.drawable.presence_busy);
normalTrackerItems = new TrackerItemizedOverlay(defaultMarker);
warningTrackerItems = new TrackerItemizedOverlay(warning);
/**
* Get the zoom controls and add them to the bottom of the map
*/
LinearLayout linearLayout = (LinearLayout) findViewById(R.id.zoomview);
View zoomControls = mapView.getZoomControls();
linearLayout.addView(zoomControls);
}
@Override
protected Dialog onCreateDialog(int i) {
switch (i) {
case ALERT_MAP_LOCATION:
if (null == itemDetailsDialog) {
itemDetailsDialog = new AlertDialog.Builder(this)
.setTitle("Tracker Location Details")
.setCancelable(true)
.setPositiveButton("Ok", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialogInterface, int i) {
}
})
.create();
}
itemDetailsDialog.setMessage(itemDetails);
return itemDetailsDialog;
}
return super.onCreateDialog(i);
}
@Override
protected void onPrepareDialog(int i, Dialog dialog) {
super.onPrepareDialog(i, dialog);
switch (i) {
case ALERT_MAP_LOCATION:
itemDetailsDialog.setMessage(itemDetails);
break;
}
}
@Override
protected boolean isRouteDisplayed() {
return false;
}
@Override
protected void onResume() {
super.onResume();
myLocationOverlay.enableMyLocation();
addOverlaysToMap();
}
private void addOverlaysToMap() {
// resets the overlays, if the location info had changed maybe
// todo: OPTIMIZE THIS, NOT TO RELOAD ON RESUME
final List<Overlay> overlays = mapView.getOverlays();
overlays.clear();
normalTrackerItems.clear();
warningTrackerItems.clear();
overlays.add(myLocationOverlay);
Cursor cursor = getContentResolver().query(Tracker.Locations.CONTENT_URI,
new String[]{Tracker.Locations._FID, Tracker.Locations.LOCATION, Tracker.Locations.UPDATE_TIME},
null, null, null);
if (cursor.getCount() > 0) {
// builds all the overlay tracker items
// convert to overlays
convertGPRMCToOverlayItems(cursor);
}
cursor.close();
if (warningTrackerItems.size() > 0) {
overlays.add(warningTrackerItems);
}
if (normalTrackerItems.size() > 0) {
overlays.add(normalTrackerItems);
}
}
private void convertGPRMCToOverlayItems(Cursor cursor) {
cursor.moveToFirst();
do {
String gprmc = cursor.getString(1);
String loc = "Updated on: <not available>";
long rt = cursor.getLong(2);
if (rt > 0) {
Calendar cal = Calendar.getInstance();
cal.setTimeInMillis(rt);
DateFormat sdf = SimpleDateFormat.getDateTimeInstance();
loc = "Updated on: " + sdf.format(cal.getTime());
}
if (null != gprmc) {
String id = cursor.getString(0);
String sel = Tracker.Details._ID + " = ? ";
String[] selArgs = new String[]{id};
Cursor details = getContentResolver().query(Tracker.Details.CONTENT_URI,
new String[]{Tracker.Details.NAME, Tracker.Details.NUMBER},
sel, selArgs, null);
if (0 == details.getCount()) {
Log.e("DisplayLocation#convertGPRMCToOverlayItems: ",
"No Records found in database for tracker id: " + id);
Toast.makeText(this, "No Records found for tracker id: " + id,
Toast.LENGTH_LONG).show();
} else {
details.moveToFirst();
// $GPRMC,003400.000,A,3725.3433,N,12205.7921,W,0.02,227.11,061007,,,D*76
// wuffit,$GPRMC,022410.000,V,3904.1340,N,10453.1140,W,0.00,0.00,010409,,*17,POLL
TrackerOverlayItem item = createTrackerOverlayItem
(details.getString(0) + " \n " + details.getString(1)
+ " \n " + loc, gprmc);
if (item.isNormal()) {
normalTrackerItems.addOverlayItem(item);
} else {
warningTrackerItems.addOverlayItem(item);
}
}
details.close();
}
} while (cursor.moveToNext());
}
private TrackerOverlayItem createTrackerOverlayItem(String detail, String gprmc) {
String[] contents = gprmc.split(",");
// Wuffit,$GPRMC, 171717.0000, A, 3904.1289, N, 10453.1007, W, 0.00, 0.00, 070309,,*13, POLL
// wuffit,$GPRMC,022410.000,V,3904.1340,N,10453.1140,W,0.00,0.00,010409,,*17,POLL
int lat = degToDec(contents[4].trim());
if ("S".equalsIgnoreCase(contents[5].trim())) lat = -lat;
int lang = degToDec(contents[6].trim());
if ("W".equalsIgnoreCase(contents[7].trim())) lang = -lang;
GeoPoint geoPoint = new GeoPoint(lat, lang);
String ts = contents[2].trim();
ts = ts.split("\\.")[0];
Log.d("DisplayLocation#convertGPRMCToOverlayItems: ", "Time String: " + ts);
ts = ts.substring(0, 2) + ":" + ts.substring(2, 4) + ":" + ts.substring(4, 6);
String ds = contents[10].trim();
ds = ds.substring(0, 2) + "-" + ds.substring(2, 4) + "-" + ds.substring(4, 6);
String date =
" Lat/Long: " + geoPoint.toString()
+ "\n Date: " + ds + " Time: " + ts;
TrackerOverlayItem item = new TrackerOverlayItem(geoPoint, detail, date);
if ("V".equalsIgnoreCase(contents[3])) {
item.setNormal(false);
}
return item;
}
int degToDec(String val) {
/*
Degrees Minutes Seconds to Degrees Minutes.m (GPS)
Degrees = Degrees, Minutes.m = Minutes + (Seconds / 60)
Degrees Minutes.m to Decimal Degrees
.d = M.m / 60, Decimal Degrees = Degrees + .d
*/
String min = val.substring(val.length() - 7, val.length());
String deg = val.substring(0, val.length() - min.length());
return (int) ((Double.valueOf(deg) + (Double.valueOf(min) / 60)) * 1000000);
}
@Override
protected void onStop() {
myLocationOverlay.disableMyLocation();
super.onStop();
}
/**
* Custom overlay to display the Panoramio pushpin
*/
public class TrackerItemizedOverlay extends ItemizedOverlay {
private ArrayList<TrackerOverlayItem> trackerOverlayItems =
new ArrayList<TrackerOverlayItem>();
public TrackerItemizedOverlay(Drawable defaultMarker) {
// super(boundCenterBottom(defaultMarker));
super(boundCenter(defaultMarker));
}
public void addOverlayItem(TrackerOverlayItem overlayItem) {
trackerOverlayItems.add(overlayItem);
populate();
}
protected OverlayItem createItem(int i) {
return trackerOverlayItems.get(i);
}
public int size() {
return trackerOverlayItems.size();
}
public void clear() {
trackerOverlayItems.clear();
}
@Override
protected boolean onTap(int i) {
boolean res = super.onTap(i);
itemDetails = getItem(i).getTitle() + "\n" + getItem(i).getSnippet();
Log.d("TrackerItemizedOverlay#onTap: ", itemDetails);
// Toast.makeText(getApplicationContext(), itemDetails, Toast.LENGTH_LONG).show();
showDialog(ALERT_MAP_LOCATION);
return res;
}
}
class TrackerOverlayItem extends OverlayItem {
boolean normal = true;
public TrackerOverlayItem(GeoPoint geoPoint, String s, String s1) {
super(geoPoint, s, s1);
}
public boolean isNormal() {
return normal;
}
public void setNormal(boolean normal) {
this.normal = normal;
}
}
}
/**
$GPRMC
Recommended minimum specific GPS/Transit data
eg1. $GPRMC,081836,A,3751.65,S,14507.36,E,000.0,360.0,130998,011.3,E*62
eg2. $GPRMC,225446,A,4916.45,N,12311.12,W,000.5,054.7,191194,020.3,E*68
225446 Time of fix 22:54:46 UTC
A Navigation receiver warning A = OK, V = warning
4916.45,N Latitude 49 deg. 16.45 min North
12311.12,W Longitude 123 deg. 11.12 min West
000.5 Speed over ground, Knots
054.7 Course Made Good, True
191194 Date of fix 19 November 1994
020.3,E Magnetic variation 20.3 deg East
*68 mandatory checksum
eg3. $GPRMC,220516,A,5133.82,N,00042.24,W,173.8,231.8,130694,004.2,W*70
1 2 3 4 5 6 7 8 9 10 11 12
1 220516 Time Stamp
2 A validity - A-ok, V-invalid
3 5133.82 current Latitude
4 N North/South
5 00042.24 current Longitude
6 W East/West
7 173.8 Speed in knots
8 231.8 True course
9 130694 Date Stamp
10 004.2 Variation
11 W East/West
12 *70 checksum
eg4. $GPRMC,hhmmss.ss,A,llll.ll,a,yyyyy.yy,a,x.x,x.x,ddmmyy,x.x,a*hh
1 = UTC of position fix
2 = Data status (V=navigation receiver warning)
3 = Latitude of fix
4 = N or S
5 = Longitude of fix
6 = E or W
7 = Speed over ground in knots
8 = Track made good in degrees True
9 = UT date
10 = Magnetic variation degrees (Easterly var. subtracts from true course)
11 = E or W
12 = Checksum
*/