android - How can I find the latitude and longitude from address?


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I want to show the location of an address in Google Maps.

How do I get the latitude and longitude of an address using the Google Maps API?


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    public GeoPoint getLocationFromAddress(String strAddress){
    
    Geocoder coder = new Geocoder(this);
    List<Address> address;
    GeoPoint p1 = null;
    
    try {
        address = coder.getFromLocationName(strAddress,5);
        if (address==null) {
           return null;
        }
        Address location=address.get(0);
        location.getLatitude();
        location.getLongitude();
    
        p1 = new GeoPoint((double) (location.getLatitude() * 1E6),
                          (double) (location.getLongitude() * 1E6));
    
        return p1;
        }
    }
    

    strAddress is a string containing the address. The address variable holds the converted addresses.


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    Ud_an's solution with updated API's

    Note: LatLng class is part of Google Play Services.

    Mandatory:

    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
    
    <uses-permission android:name="android.permission.INTERNET"/>
    

    Update: If you have target SDK 23 and above, make sure you take care of runtime permission for location.

    public LatLng getLocationFromAddress(Context context,String strAddress) {
    
        Geocoder coder = new Geocoder(context);
        List<Address> address;
        LatLng p1 = null;
    
        try {
            // May throw an IOException
            address = coder.getFromLocationName(strAddress, 5);
            if (address == null) {
                return null;
            }
    
            Address location = address.get(0);
            p1 = new LatLng(location.getLatitude(), location.getLongitude() );
    
        } catch (IOException ex) {
    
            ex.printStackTrace();
        }
    
        return p1;
    }
    

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    If you want to place your address in google map then easy way to use following

    Intent searchAddress = new  Intent(Intent.ACTION_VIEW,Uri.parse("geo:0,0?q="+address));
    startActivity(searchAddress);
    

    OR

    if you needed to get lat long from your address then use Google Place Api following

    create a method that returns a JSONObject with the response of the HTTP Call like following

    public static JSONObject getLocationInfo(String address) {
            StringBuilder stringBuilder = new StringBuilder();
            try {
    
            address = address.replaceAll(" ","%20");    
    
            HttpPost httppost = new HttpPost("http://maps.google.com/maps/api/geocode/json?address=" + address + "&sensor=false");
            HttpClient client = new DefaultHttpClient();
            HttpResponse response;
            stringBuilder = new StringBuilder();
    
    
                response = client.execute(httppost);
                HttpEntity entity = response.getEntity();
                InputStream stream = entity.getContent();
                int b;
                while ((b = stream.read()) != -1) {
                    stringBuilder.append((char) b);
                }
            } catch (ClientProtocolException e) {
            } catch (IOException e) {
            }
    
            JSONObject jsonObject = new JSONObject();
            try {
                jsonObject = new JSONObject(stringBuilder.toString());
            } catch (JSONException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
    
            return jsonObject;
        }
    

    now pass that JSONObject to getLatLong() method like following

    public static boolean getLatLong(JSONObject jsonObject) {
    
            try {
    
                longitute = ((JSONArray)jsonObject.get("results")).getJSONObject(0)
                    .getJSONObject("geometry").getJSONObject("location")
                    .getDouble("lng");
    
                latitude = ((JSONArray)jsonObject.get("results")).getJSONObject(0)
                    .getJSONObject("geometry").getJSONObject("location")
                    .getDouble("lat");
    
            } catch (JSONException e) {
                return false;
    
            }
    
            return true;
        }
    

    I hope this helps to you nd others..!! Thank you..!!


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    The following code will work for google apiv2:

    public void convertAddress() {
        if (address != null && !address.isEmpty()) {
            try {
                List<Address> addressList = geoCoder.getFromLocationName(address, 1);
                if (addressList != null && addressList.size() > 0) {
                    double lat = addressList.get(0).getLatitude();
                    double lng = addressList.get(0).getLongitude();
                }
            } catch (Exception e) {
                e.printStackTrace();
            } // end catch
        } // end if
    } // end convertAddress
    

    Where address is the String (123 Testing Rd City State zip) you want to convert to LatLng.


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    This is how you can find the latitude and longitude of where we have click on map.

    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();
        }                            
        return false;
    } 
    

    it works well.

    To get the location's address we can use geocoder class.


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    An answer to Kandha problem above :

    It throws the "java.io.IOException service not available" i already gave those permission and include the library...i can get map view...it throws that IOException at geocoder...

    I just added a catch IOException after the try and it solved the problem

        catch(IOException ioEx){
            return null;
        }
    

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    Geocoder coder = new Geocoder(this);
            List<Address> addresses;
            try {
                addresses = coder.getFromLocationName(address, 5);
                if (addresses == null) {
                }
                Address location = addresses.get(0);
                double lat = location.getLatitude();
                double lng = location.getLongitude();
                Log.i("Lat",""+lat);
                Log.i("Lng",""+lng);
                LatLng latLng = new LatLng(lat,lng);
                MarkerOptions markerOptions = new MarkerOptions();
                markerOptions.position(latLng);
                googleMap.addMarker(markerOptions);
                googleMap.animateCamera(CameraUpdateFactory.newLatLngZoom(latLng,12));
            } catch (IOException e) {
                e.printStackTrace();
            }