I have displayed the map in my app by using the following code. I have retrieved info from the database and displayed the map. Now i want to add marker to the retrieved location...
googleMao.java
public class googleMap extends MapActivity{
private MapView mapView;
private MapController mc;
GeoPoint p;
long s;
Cursor cur;
SQLiteDatabase db;
createSqliteHelper csh;
String query;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.map);
// String query = getIntent().getStringExtra("value");
// here is calling the map string query
s = getIntent().getLongExtra("value",2);
map();
mapView = (MapView) findViewById(R.id.mapview1);
LinearLayout zoomLayout = (LinearLayout)findViewById(R.id.zoom);
View zoomView = mapView.getZoomControls();
zoomLayout.addView(zoomView,
new LinearLayout.LayoutParams(
LayoutParams.WRAP_CONTENT,
LayoutParams.WRAP_CONTENT));
//mapView.displayZoomControls(true);
mapView.setBuiltInZoomControls(true);
mc = mapView.getController();
String coordinates[] = {"1.352566007", "103.78921587"};
double lat = Double.parseDouble(coordinates[0]);
double lng = Double.parseDouble(coordinates[1]);
Geocoder geoCoder = new Geocoder(this, Locale.getDefault());
try {
List<Address> addresses = geoCoder.getFromLocationName(query, 5);
String add = "";
if (addresses.size() > 0) {
p = new GeoPoint(
(int) (addresses.get(0).getLatitude() * 1E6),
(int) (addresses.get(0).getLongitude() * 1E6));
mc.animateTo(p);
mapView.invalidate();
mc.setZoom(6);
}
} catch (IOException e) {
e.printStackTrace();
}
}
#Override
protected boolean isRouteDisplayed() {
// Required by MapActivity
return false;
}
public void map()
{
String[] str={"type"};
int[] i={R.id.type};
csh=new createSqliteHelper(this);
db=csh.getReadableDatabase();
cur=db.rawQuery("select type from restaurants where _id="+s,null);
if(cur.moveToFirst())
{
query = cur.getString(cur.getColumnIndex("type"));
}
}
}
You need to create an ItemizedOverlay for that. Here is one sample project from my books that shows adding an ItemizedOverlay to a MapView.
Related
I have an application where I fetch longitude and latitude from my database and want to display it in a MapView. I am able to show the one stored most recently, but I think some array is needed in a for loop to add it in an overlay. I don't know how to implement it though.
Here is my buttonClick on which it will fetch lat/long and display it in a MapView:
buttonShowMarkers = (Button) findViewById(R.id.button_SHOW_MARKERS);
buttonShowMarkers.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
try {
db = openOrCreateDatabase("LocationFetch.db", MODE_PRIVATE , null);
cursor = db.rawQuery("SELECT * FROM user" , null);
cursor.moveToFirst();
do {
int dataID = cursor.getColumnIndex("id");
String dataString = cursor.getString(0);
Log.d("ID DATA FROM DATABASE---->" , dataString);
String dataNAME = cursor.getString(1).toString().trim();
Log.d("NAME DATA FROM DATABASE---->", dataNAME);
String dataLAT = cursor.getString(2).toString().trim();
Log.d("LAT DATA FROM DATABASE----->" , dataLAT);
int latitude = cursor.getColumnIndex("latitude");
String dataLON = cursor.getString(3).toString().trim();
Log.d("LON DATA FROM DATABASE----->" , dataLON);
int longitude = cursor.getColumnIndex("longitude");
showLatLon(latitude , longitude , dataNAME);
// ArrayList<OverlayItem> items = new ArrayList<OverlayItem>();
/* List<Overlay> ListOverlays = mapView.getOverlays();
* OverlayItem[] markerItem = {new OverlayItem(new GeoPoint(latitude, longitude) , ""+dataNAME , ""+dataString)};
* OverlayItem markerItem = new OverlayItem(new GeoPoint((int)(latitude *1E6), (int)(longitude *1E6)) , ""+dataNAME , ""+dataString);
* drawableOne = getResources().getDrawable(R.drawable.location_blue);
* helloItemizedOverlay = new HelloItemizedOverlay(drawableOne);
* helloItemizedOverlay.addOverlayItem(markerItem);
* mapView.getOverlays().add(helloItemizedOverlay);
* ListOverlays.add(myItemizedOverlay);*/
//for(int i = dataID ; )
} while (cursor.moveToNext());
/*String[] arrLat = new String[]{LATdata};
String[] arrLon = new String[]{LONdata};*/
//showLatLon(dataLAT , dataLON);
cursor.moveToNext();
} catch(SQLException e) {
e.printStackTrace();
} finally {
cursor.close();
}
db.close();
}
private void showLatLon(int latitude , int longitude , String nAMEdata) {
// GeoPoint point = new GeoPoint( (latitude) , (latitude) );
List<Overlay> ListOverlays = mapView.getOverlays();
//OverlayItem[] markerItem = {new OverlayItem(new GeoPoint(latitude, longitude) , ""+dataNAME , ""+dataString)};
OverlayItem markerItem = new OverlayItem(new GeoPoint(latitude,latitude ) , ""+nAMEdata , null);
drawableOne = getResources().getDrawable(R.drawable.location_blue);
helloItemizedOverlay = new HelloItemizedOverlay(drawableOne);
helloItemizedOverlay.addOverlayItem(markerItem);
mapView.getOverlays().add(helloItemizedOverlay);
ListOverlays.add(myItemizedOverlay);
}
});
You can try using this solution -
Create a class named LatLonPoint - this basically does the conversion from latlon to GeoPoint -
public class LatLonPoint extends GeoPoint {
public LatLonPoint(double latitude, double longitude) {
super((int) (latitude * 1E6), (int) (longitude * 1E6));
}
}
Create a Itemized Overlay -
public class HelloItemizedOverlay extends ItemizedOverlay<OverlayItem> {
private ArrayList<OverlayItem> mOverlays = new ArrayList<OverlayItem>();
private Context mContext;
public HelloItemizedOverlay(Drawable defaultMarker, Context context) {
super(boundCenterBottom(defaultMarker));
mContext = context;
}
public void addOverlay(OverlayItem overlay) {
mOverlays.add(overlay);
populate();
}
#Override
protected OverlayItem createItem(int i) {
return mOverlays.get(i);
}
#Override
public int size() {
return mOverlays.size();
}
#Override
protected boolean onTap(int index) {
OverlayItem item = mOverlays.get(index);
AlertDialog.Builder dialog = new AlertDialog.Builder(mContext);
dialog.setTitle(item.getTitle());
dialog.setMessage(item.getSnippet());
dialog.show();
return true;
}
#Override
public boolean onKeyDown(int keyCode, KeyEvent event, MapView mapView) {
if (keyCode == KeyEvent.KEYCODE_BACK) {
}
return super.onKeyDown(keyCode, event, mapView);
}
}
Now in the main activity -
try {
db = openOrCreateDatabase("LocationFetch.db", MODE_PRIVATE , null);
cursor = db.rawQuery("SELECT * FROM user" , null);
cursor.moveToFirst();
do {
int dataID = cursor.getColumnIndex("id");
String dataString = cursor.getString(0);
Log.d("ID DATA FROM DATABASE---->" , dataString);
String dataNAME = cursor.getString(1).toString().trim();
Log.d("NAME DATA FROM DATABASE---->", dataNAME);
String dataLAT = cursor.getString(2).toString().trim();
Log.d("LAT DATA FROM DATABASE----->" , dataLAT);
int latitude = cursor.getColumnIndex("latitude");
String dataLON = cursor.getString(3).toString().trim();
Log.d("LON DATA FROM DATABASE----->" , dataLON);
int longitude = cursor.getColumnIndex("longitude");
// Add the item here --
itemizedoverlay.addOverlay(new OverlayItem(new LatLonPoint(latitude, longitude), dataNAME, null));
//showLatLon(latitude , longitude , dataNAME);
// ArrayList<OverlayItem> items = new ArrayList<OverlayItem>();
/* List<Overlay> ListOverlays = mapView.getOverlays();
* OverlayItem[] markerItem = {new OverlayItem(new GeoPoint(latitude, longitude) , ""+dataNAME , ""+dataString)};
* OverlayItem markerItem = new OverlayItem(new GeoPoint((int)(latitude *1E6), (int)(longitude *1E6)) , ""+dataNAME , ""+dataString);
* drawableOne = getResources().getDrawable(R.drawable.location_blue);
* helloItemizedOverlay = new HelloItemizedOverlay(drawableOne);
* helloItemizedOverlay.addOverlayItem(markerItem);
* mapView.getOverlays().add(helloItemizedOverlay);
* ListOverlays.add(myItemizedOverlay);*/
//for(int i = dataID ; )
} while (cursor.moveToNext());
// Add all itemized overlay here
mapOverlays.add(itemizedoverlay);
/*String[] arrLat = new String[]{LATdata};
String[] arrLon = new String[]{LONdata};*/
//showLatLon(dataLAT , dataLON);
//cursor.moveToNext();
} catch(SQLException e) {
e.printStackTrace();
} finally {
cursor.close();
}
For the above block you have to initialize these two items beffore the do.. while -
List<Overlay> mapOverlays = mMapView.getOverlays();
and
HelloItemizedOverlay itemizedoverlay = new HelloItemizedOverlay(
drawable, this);
EDIT-- Adding iterating Cursor Part -
Drawable drawable = this.getResources().getDrawable(
R.drawable.ic_launcher);
List<Overlay> mapOverlays = mMapView.getOverlays();
HelloItemizedOverlay itemizedoverlay = new HelloItemizedOverlay(
drawable, this);
while(cursor.moveToNext())
{
// get the values --
int dataID = cursor.getColumnIndex("id");
String dataString = cursor.getString(0);
Log.d("ID DATA FROM DATABASE---->" , dataString);
String dataNAME = cursor.getString(1).toString().trim();
Log.d("NAME DATA FROM DATABASE---->", dataNAME);
String dataLAT = cursor.getString(2).toString().trim();
Log.d("LAT DATA FROM DATABASE----->" , dataLAT);
int latitude = cursor.getColumnIndex("latitude");
String dataLON = cursor.getString(3).toString().trim();
Log.d("LON DATA FROM DATABASE----->" , dataLON);
int longitude = cursor.getColumnIndex("longitude");
// Assuming your logic for retrieving values is correct
// Add into the itemized Overlay here
itemizedoverlay.addOverlay(new OverlayItem(new LatLonPoint(latitude, longitude), dataNAME, null));
}
mapOverlays.add(itemizedoverlay);
This question already has an answer here:
Closed 10 years ago.
Possible Duplicate:
How to put JSON lOutput (latitude and longitude) on the map
I have a main activity which parses the JSON data from my mysql (table tracking:Lattitude and longitude) Now I want to pass this data in to my MapActivity and display on google maps. Any help is highly appreciated. Thanks!
this my JSONactivity
public class JSONActivity extends Activity{
private JSONObject jObject;
private String xResult ="";
//Seusuaikan url dengan nama domain
private String url = "http://10.0.2.2/labiltrack/daftartracking.php";
#Override
public void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.daftartrack);
TextView txtResult = (TextView)findViewById(R.id.TextViewResult);
//url += "?lattitude=" + UserData.getEmail();
xResult = getRequest(url);
try {
parse(txtResult);
} catch (Exception e) {
e.printStackTrace();
}
}
private void parse(TextView txtResult) throws Exception {
// TODO Auto-generated method stub
jObject = new JSONObject(xResult);
JSONArray menuitemArray = jObject.getJSONArray("joel");
String sret="";
//int j = 0;
for (int i = 0; i < menuitemArray.length(); i++) {
sret +=menuitemArray.getJSONObject(i).
getString("lattitude").toString()+" : ";
System.out.println(menuitemArray.getJSONObject(i)
.getString("lattitude").toString());
System.out.println(menuitemArray.getJSONObject(i).getString(
"longitude").toString());
sret +=menuitemArray.getJSONObject(i).getString(
"lattitude").toString()+"\n";
//j=i;
}txtResult.setText(sret);
}
/**
* Method untuk Mengirimkan data keserver
* event by button login diklik
*
* #param view
*/
private String getRequest(String url) {
// TODO Auto-generated method stub
String sret="";
HttpClient client = new DefaultHttpClient();
HttpGet request = new HttpGet(url);
try{
HttpResponse response = client.execute(request);
sret =request(response);
}catch(Exception ex){
Toast.makeText(this,"jo "+sret, Toast.LENGTH_SHORT).show();
}
return sret;
}
/**
* Method untuk Menenrima data dari server
* #param response
* #return
*/
private String request(HttpResponse response) {
// TODO Auto-generated method stub
String result = "";
try{
InputStream in = response.getEntity().getContent();
BufferedReader reader = new BufferedReader(new InputStreamReader(in));
StringBuilder str = new StringBuilder();
String line = null;
while((line = reader.readLine()) != null){
str.append(line + "\n");
}
in.close();
result = str.toString();
}catch(Exception ex){
result = "Error";
}
return result;
}
}
and this my mapActivity
public class mapactivity extends MapActivity {
private MapView mapView;
MapController mc;
GeoPoint p;
//private MyLocationOverlay me = null;
class MapOverlays extends com.google.android.maps.Overlay
{
#Override
public boolean draw (Canvas canvas, MapView mapView, boolean shadow, long when)
{
super.draw(canvas, mapView, shadow);
//translate the geopoint to screen pixels
Point screenPts = new Point();
mapView.getProjection().toPixels(p, screenPts);
//tambah marker
Bitmap bmp = BitmapFactory.decodeResource(getResources (), R.drawable.pin_red);
canvas.drawBitmap(bmp, screenPts.x, screenPts.y-50, null);
//mapView.setSatellite(true);
return true;
}
#Override
public boolean onTouchEvent(MotionEvent event, MapView mapView)
{
//---when user lifts his finger---
if (event.getAction() == 1) {
GeoPoint p = mapView.getProjection().fromPixels(
(int) event.getX(),
(int) event.getY());
Toast.makeText(getBaseContext(),
p.getLatitudeE6() / 1E6 + "," +
p.getLongitudeE6() /1E6 ,
Toast.LENGTH_SHORT).show();
mc.animateTo(p);
//geocoding
Geocoder geoCoder = new Geocoder(
getBaseContext(), Locale.getDefault());
try {
List<Address> addresses = geoCoder.getFromLocation(
p.getLatitudeE6() / 1E6,
p.getLongitudeE6() / 1E6, 1);
String add = "";
if (addresses.size() > 0)
{
for (int i=0; i<addresses.get(0).getMaxAddressLineIndex();
i++)
add += addresses.get(0).getAddressLine(i) + "\n";
}
Toast.makeText(getBaseContext(), add, Toast.LENGTH_SHORT).show();
}
catch (IOException e) {
e.printStackTrace();
}
return true;
}
else
return false;
} }
/** Called when the activity is first created. */
#SuppressWarnings("deprecation")
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.mapview1);
//utk mnampilkan zoom
mapView = (MapView) findViewById(R.id.mapView);
LinearLayout zoomLayout = (LinearLayout)findViewById(R.id.zoom);
View zoomView = mapView.getZoomControls();
zoomLayout.addView(zoomView,
new LinearLayout.LayoutParams(
LayoutParams.FILL_PARENT,
LayoutParams.FILL_PARENT));
mapView.displayZoomControls(true);
//menampilkan default peta banda aceh
mc = mapView.getController();
String coordinates[] = {"5.550381", "95.318699"};
double lat = Double.parseDouble(coordinates[0]);
double lng = Double.parseDouble(coordinates[1]);
p = new GeoPoint(
(int) (lat * 1E6),
(int) (lng * 1E6));
mc.animateTo(p);
mc.setZoom(14);
mapView.invalidate();
//tambah marker
MapOverlays mapOverlay = new MapOverlays();
List<Overlay> listOfOverlays = mapView.getOverlays();
listOfOverlays.clear();
listOfOverlays.add(mapOverlay);
mapView.invalidate();
}
public void btnSatelitClick(View v){
mapView.setSatellite(true);
mapView.setStreetView(false);
}
public void btnjalanClick (View v){
mapView.setSatellite(false);
mapView.setStreetView(true);
}
protected boolean isRouteDisplayed()
{
//auto generate method
return false;
}
}
as you have only to variable to pass so use intent and pass the data ......and i think you have rest of code writen
put in the JSONActivity from where you want to open mapActivity and you alos have the variable latitude and longitude with their values
Intent i= new Intent(getApplicationContext(), mapActivity.class);
i.putExtra("lattitude",lattitude);
i.putExtra("longitude",longitude);
startActivity(i);
Then in the new activity mapActivity, retrieve those values:
inplace of this put String coordinates[] = {"5.550381", "95.318699"};
Bundle extras = getIntent().getExtras();
if(extras !=null) {
String lattitude= extras.getString("lattitude");
String longitude= extras.getString("longitude");
double lat = Double.parseDouble(lattitude);
double lng = Double.parseDouble(longitude);
}
I want display Google maps in the Android Based on the user edit text value lat and lang and place name and then i finally click on the search button the maps was displayed in Android.
you need to create some object like.
MapView mapView;
MapController mc;
GeoPoint p;
String add = "";
double lattitude ;
double longitude;
Searching location by Name and show Maps.
AlertDialog.Builder alert = new AlertDialog.Builder(this);
alert.setTitle("Search Location");
alert.setMessage("Enter Location Name: ");
// Set an EditText view to get user input
final EditText input = new EditText(this);
alert.setView(input);
alert.setPositiveButton("Ok", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
String value = input.getText().toString();
// Do something with value!
Log.d("value", value);
Geocoder geoCoder = new Geocoder(getBaseContext(), Locale.getDefault());
try {
List<Address> addresses = geoCoder.getFromLocationName(
value, 5);
String add = "";
if (addresses.size() > 0) {
p = new GeoPoint(
(int) (addresses.get(0).getLatitude() * 1E6),
(int) (addresses.get(0).getLongitude() * 1E6));
mc.animateTo(p);
mapView.invalidate();
}
} catch (IOException e) {
e.printStackTrace();
}
}
});
alert.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
// Canceled.
}
});
alert.show();
}
Searching location by Entering Latitude and Longitude and show map..
searchUsingLangLat()
{
LayoutInflater factory = LayoutInflater.from(this);
final View textEntryView = factory.inflate(R.layout.latlong, null);
AlertDialog.Builder alert = new AlertDialog.Builder(this);
alert.setTitle("Search Location");
alert.setMessage("Enter Lattitude and Longitude: ");
alert.setView(textEntryView);
// Set an EditText view to get user input
AlertDialog latLongPrompt = alert.create();
final EditText lat = (EditText) textEntryView.findViewById(R.id.lat);
final EditText longi = (EditText) textEntryView.findViewById(R.id.longi);
//alert.setView(lat);
//alert.setView(longi);
alert.setPositiveButton("Ok", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
Toast.makeText(getBaseContext(), "clicked ok ", Toast.LENGTH_SHORT).show();
Double value1 = Double.parseDouble(lat.getText().toString());
Double value2 = Double.parseDouble(longi.getText().toString());
// Do something with value!
// Log.d("value1", value1);
//Log.d("value2", value2);
p = new GeoPoint(
(int) (value1 * 1E6),
(int) (value2 * 1E6));
mc.animateTo(p);
mc.setZoom(17);
mapView.invalidate();
}
});
alert.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
// Canceled.
}
});
alert.show();
And finally you need to show map. write following code in onCreate() method.
mapView = (MapView) findViewById(R.id.mapView);
LinearLayout zoomLayout = (LinearLayout)findViewById(R.id.zoom);
View zoomView = mapView.getZoomControls();
zoomLayout.addView(zoomView,
new LinearLayout.LayoutParams(
LayoutParams.WRAP_CONTENT,
LayoutParams.WRAP_CONTENT));
mapView.displayZoomControls(true);
mc = mapView.getController();
String coordinates[] = {"1.352566007", "103.78921587"};
double lat = Double.parseDouble(coordinates[0]);
double lng = Double.parseDouble(coordinates[1]);
p = new GeoPoint(
(int) (lat * 1E6),
(int) (lng * 1E6));
mc.setCenter(p);
mc.setZoom(17);
//---Add a location marker---
MapOverlay mapOverlay = new MapOverlay();
List<Overlay> listOfOverlays = mapView.getOverlays();
listOfOverlays.clear();
listOfOverlays.add(mapOverlay);
LocationManager lm = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
lm.requestLocationUpdates(LocationManager.GPS_PROVIDER, 1000L, 500.0f, this);
Try this code...if you get any error free to ask.
If you store the Latitude and Longitude of a bunch of locations in a SQLite Database, You could retrieve these values and place them each in an OverlayItem class for use in Google's Map code!!
Database name: database
Table name: place
Fields in place Table:
id
title
description
latitude
longitude
You would want to do a query like this:
SELECT title, description, latitude, longitude
FROM place
Which can be done in Android like this:
// get your database object here using your DbHelper object and the
// method getReadableDatabase();
ArrayList<OverlayItem> items = new ArrayList<OverlayItem>();
Cursor locationCursor = databaseObject.query("place", new String[] {
"title", "description", "latitude", "longitude" }, null, null,
null, null, null);
locationCursor.moveToFirst();
do {
String title = locationCursor.String(locationCursor
.getColumnIndex("title"));
String description = locationCursor.String(locationCursor
.getColumnIndex("description"));
int latitude = (int) (locationCursor.getDouble(locationCursor
.getColumnIndex("latitude")) * 1E6);
int longitude = (int) (locationCursor.getDouble(locationCursor
.getColumnIndex("longitude")) * 1E6);
items.add(new OverlayItem(new GeoPoint(latitude, longitude), title,
description));
} while (locationCursor.moveToNext());
You need to times the double values by 1e6 because Android uses an integer representation of the lat/long values. If you already took care of this when populating the database, skip the multiplication and use locationCursor.getInt(...).
I am not able to properly extract out the latitude and longitude point set to draw route further. Can anybody get me the code to do so?
Thanks in advance
public class MapprojectActivity extends MapActivity {
/** Called when the activity is first created. */
static final String TAG_RESULTS = "results";
static final String TAG_GEO = "geometry";
static final String TAG_LOCATION = "location";
static final String TAG_LAT = "lat";
static final String TAG_LNG = "lng";
JSONArray res = null;
MapView mapView;
List<Overlay> mapOverlays;
Drawable drawable;
MyItemizedOverlay itemizedOverlay;
static String url = "http://maps.google.com/maps/api/geocode/json?address=guindy,+chennai,+IN&sensor=false";
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.map);
TextView lattv=(TextView)findViewById(R.id.lat);
TextView lngtv=(TextView)findViewById(R.id.lng);
JSONParstring jParser = new JSONParstring();
// getting JSON string from URL
try
{
JSONObject jobj = new JSONObject(json);
res = jobj.getJSONArray(TAG_RESULTS);
for(int i = 0; i < res.length(); i++){
JSONObject c = res.getJSONObject(i);
JSONObject loc = c.optJSONObject(TAG_GEO).optJSONObject(TAG_LOCATION);
String lat =loc.getString(TAG_LAT);
String lng = loc.getString(TAG_LNG);
lattv.setText(lat);
lngtv.setText(lng);
}
}
catch (JSONException e){ }
String i=(String) lattv.getText();
String j=(String) lngtv.getText();
double lat1 = Double.parseDouble(i);
double lng1 = Double.parseDouble(j);
mapView = (MapView) findViewById(R.id.map_view);
mapView.setBuiltInZoomControls(false);
mapOverlays = mapView.getOverlays();
drawable = getResources().getDrawable(R.drawable.mark1);
itemizedOverlay = new MyItemizedOverlay(drawable, mapView);
GeoPoint point = new GeoPoint((int)(lat1*1E6),(int)(lng1*1E6));
OverlayItem overlayItem = new OverlayItem(point, "Amy Jones",
"(checked in Lemon-tree with friends lisa wong, paul jones)");
itemizedOverlay.addOverlay(overlayItem);
mapOverlays.add(itemizedOverlay);
final MapController mc = mapView.getController();
mc.animateTo(point);
mc.setZoom(16);
// Integer i = Integer.valueOf((String) lattv.getText());
// Integer j = Integer.valueOf((String) lngtv.getText());
// // first overlay
}
protected boolean isRouteDisplayed() {
return false;
}
}
Here is to get Latitude/Longitude from JSON http://blog.synyx.de/2010/06/routing-driving-directions-on-android-part-1-get-the-route/
And this is how to draw a route http://blog.synyx.de/2010/06/routing-driving-directions-on-android-%E2%80%93-part-2-draw-the-route/
u should study it. i hope it'll help.
Im trying to display the address from an EditText using geoCoder and also it would be able editable to click on the finder button and update the googlemap display on the top of the screen, this is my code:
Geocoder geocoder = null;
MapView mapView = null;
int lat, lng;
EditText loc;
#Override
protected boolean isRouteDisplayed() {
return false;
}
#Override
protected void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.main);
mapView = (MapView) findViewById(R.id.geoMap);
try
{
loc = (EditText)findViewById(R.id.location);
String locationName = loc.getText().toString();
List<Address> addressList = geocoder.getFromLocationName(locationName, 5);
if (addressList != null && addressList.size() > 0) {
lat = (int) addressList.get(0).getLatitude() * 1000000;
lng = (int) addressList.get(0).getLongitude() * 1000000;
GeoPoint pt = new GeoPoint(lat, lng);
mapView.getController().setZoom(10);
mapView.getController().setCenter(pt);
mapView.getController().animateTo(pt);
}
}
catch
(IOException e)
{
e.printStackTrace();
}
//
Button geoBtn = (Button) findViewById(R.id.geocodeBtn);
geocoder = new Geocoder(this);
//
geoBtn.setOnClickListener(new OnClickListener() {
public void onClick(View arg0) {
try {
EditText loc = (EditText) findViewById(R.id.location);
String locationName = loc.getText().toString();
List<Address> addressList = geocoder.getFromLocationName(locationName, 5);
if (addressList != null && addressList.size() > 0) {
int lat = (int) addressList.get(0).getLatitude() * 1000000;
int lng = (int) addressList.get(0).getLongitude() * 1000000;
GeoPoint pt = new GeoPoint(lat, lng);
mapView.getController().setZoom(10);
mapView.getController().setCenter(pt);
mapView.getController().animateTo(pt);
}
} catch (IOException e) {
e.printStackTrace();
}
}
});
}
But it crashes at this point: List addressList = geocoder.getFromLocationName(locationName, 5);
Im using googles APi 2.3.3.