How to show the track route using poly line in Android











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I am developing a bus tracking application where I am getting the location using service from server. Now, with that I want to show the bus movement and draw a proper polyline. I achieved a part of this but facing two main issues:




  1. Every time bus marker is showing, it is not getting removed. So, the older footprint of the bus is still present. Although I reached destination, I am seeing many bus icons.


  2. I am able to draw the polyline by joining the latitude and longitude but it is showing sometimes a straight line.



I have attached two screenshots for that.
enter image description here



enter image description here
The code which I used is here:



private void setmMap() {
progressDialog.show();

if (broadcastReceiver == null)
broadcastReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
Log.d("Testing", "inside the setmap");
// show progress dialog
try {
double latitude = intent.getDoubleExtra("lat", 22.560214);
double longitude = intent.getDoubleExtra("longi", 22.560214);
Log.d("SetMap", intent.getExtras().getString("time"));
LatLng startLocation = new LatLng(latitude, longitude);
m.setPosition(startLocation);
points.add(startLocation);

PolylineOptions options = new PolylineOptions().width(5).color(Color.BLUE).geodesic(true);
for (int i = 0; i < points.size(); i++) {
LatLng point = points.get(i);
options.add(point);
}
line = mMap.addPolyline(options); //add Polyline
mMap.moveCamera(CameraUpdateFactory.newLatLng(startLocation));
mMap.animateCamera(CameraUpdateFactory.newLatLngZoom(startLocation, 15));
progressDialog.cancel();
Geocoder geocoder;
List<Address> addresses;
geocoder = new Geocoder(context, Locale.getDefault());
addresses = geocoder.getFromLocation(latitude, longitude, 1);

String address = addresses.get(0).getAddressLine(0); // If any additional address line present than only, check with max available address lines by getMaxAddressLineIndex()
String city = addresses.get(0).getLocality();
String state = addresses.get(0).getAdminArea();
String country = addresses.get(0).getCountryName();
String postalCode = addresses.get(0).getPostalCode();
String strLoc = "Latitude:: "+latitude+" ::Longitude:: "+longitude+" ::Address:: "+address+" "+city+" "+
state;
Toast.makeText(getApplicationContext(),strLoc, Toast.LENGTH_LONG).show();
} catch (Exception e) {
e.printStackTrace();
progressDialog.cancel();
}
}
};
registerReceiver(broadcastReceiver, new IntentFilter("carLocationService"));
}


Thanks,
Arindam.










share|improve this question




























    up vote
    1
    down vote

    favorite












    I am developing a bus tracking application where I am getting the location using service from server. Now, with that I want to show the bus movement and draw a proper polyline. I achieved a part of this but facing two main issues:




    1. Every time bus marker is showing, it is not getting removed. So, the older footprint of the bus is still present. Although I reached destination, I am seeing many bus icons.


    2. I am able to draw the polyline by joining the latitude and longitude but it is showing sometimes a straight line.



    I have attached two screenshots for that.
    enter image description here



    enter image description here
    The code which I used is here:



    private void setmMap() {
    progressDialog.show();

    if (broadcastReceiver == null)
    broadcastReceiver = new BroadcastReceiver() {
    @Override
    public void onReceive(Context context, Intent intent) {
    Log.d("Testing", "inside the setmap");
    // show progress dialog
    try {
    double latitude = intent.getDoubleExtra("lat", 22.560214);
    double longitude = intent.getDoubleExtra("longi", 22.560214);
    Log.d("SetMap", intent.getExtras().getString("time"));
    LatLng startLocation = new LatLng(latitude, longitude);
    m.setPosition(startLocation);
    points.add(startLocation);

    PolylineOptions options = new PolylineOptions().width(5).color(Color.BLUE).geodesic(true);
    for (int i = 0; i < points.size(); i++) {
    LatLng point = points.get(i);
    options.add(point);
    }
    line = mMap.addPolyline(options); //add Polyline
    mMap.moveCamera(CameraUpdateFactory.newLatLng(startLocation));
    mMap.animateCamera(CameraUpdateFactory.newLatLngZoom(startLocation, 15));
    progressDialog.cancel();
    Geocoder geocoder;
    List<Address> addresses;
    geocoder = new Geocoder(context, Locale.getDefault());
    addresses = geocoder.getFromLocation(latitude, longitude, 1);

    String address = addresses.get(0).getAddressLine(0); // If any additional address line present than only, check with max available address lines by getMaxAddressLineIndex()
    String city = addresses.get(0).getLocality();
    String state = addresses.get(0).getAdminArea();
    String country = addresses.get(0).getCountryName();
    String postalCode = addresses.get(0).getPostalCode();
    String strLoc = "Latitude:: "+latitude+" ::Longitude:: "+longitude+" ::Address:: "+address+" "+city+" "+
    state;
    Toast.makeText(getApplicationContext(),strLoc, Toast.LENGTH_LONG).show();
    } catch (Exception e) {
    e.printStackTrace();
    progressDialog.cancel();
    }
    }
    };
    registerReceiver(broadcastReceiver, new IntentFilter("carLocationService"));
    }


    Thanks,
    Arindam.










    share|improve this question


























      up vote
      1
      down vote

      favorite









      up vote
      1
      down vote

      favorite











      I am developing a bus tracking application where I am getting the location using service from server. Now, with that I want to show the bus movement and draw a proper polyline. I achieved a part of this but facing two main issues:




      1. Every time bus marker is showing, it is not getting removed. So, the older footprint of the bus is still present. Although I reached destination, I am seeing many bus icons.


      2. I am able to draw the polyline by joining the latitude and longitude but it is showing sometimes a straight line.



      I have attached two screenshots for that.
      enter image description here



      enter image description here
      The code which I used is here:



      private void setmMap() {
      progressDialog.show();

      if (broadcastReceiver == null)
      broadcastReceiver = new BroadcastReceiver() {
      @Override
      public void onReceive(Context context, Intent intent) {
      Log.d("Testing", "inside the setmap");
      // show progress dialog
      try {
      double latitude = intent.getDoubleExtra("lat", 22.560214);
      double longitude = intent.getDoubleExtra("longi", 22.560214);
      Log.d("SetMap", intent.getExtras().getString("time"));
      LatLng startLocation = new LatLng(latitude, longitude);
      m.setPosition(startLocation);
      points.add(startLocation);

      PolylineOptions options = new PolylineOptions().width(5).color(Color.BLUE).geodesic(true);
      for (int i = 0; i < points.size(); i++) {
      LatLng point = points.get(i);
      options.add(point);
      }
      line = mMap.addPolyline(options); //add Polyline
      mMap.moveCamera(CameraUpdateFactory.newLatLng(startLocation));
      mMap.animateCamera(CameraUpdateFactory.newLatLngZoom(startLocation, 15));
      progressDialog.cancel();
      Geocoder geocoder;
      List<Address> addresses;
      geocoder = new Geocoder(context, Locale.getDefault());
      addresses = geocoder.getFromLocation(latitude, longitude, 1);

      String address = addresses.get(0).getAddressLine(0); // If any additional address line present than only, check with max available address lines by getMaxAddressLineIndex()
      String city = addresses.get(0).getLocality();
      String state = addresses.get(0).getAdminArea();
      String country = addresses.get(0).getCountryName();
      String postalCode = addresses.get(0).getPostalCode();
      String strLoc = "Latitude:: "+latitude+" ::Longitude:: "+longitude+" ::Address:: "+address+" "+city+" "+
      state;
      Toast.makeText(getApplicationContext(),strLoc, Toast.LENGTH_LONG).show();
      } catch (Exception e) {
      e.printStackTrace();
      progressDialog.cancel();
      }
      }
      };
      registerReceiver(broadcastReceiver, new IntentFilter("carLocationService"));
      }


      Thanks,
      Arindam.










      share|improve this question















      I am developing a bus tracking application where I am getting the location using service from server. Now, with that I want to show the bus movement and draw a proper polyline. I achieved a part of this but facing two main issues:




      1. Every time bus marker is showing, it is not getting removed. So, the older footprint of the bus is still present. Although I reached destination, I am seeing many bus icons.


      2. I am able to draw the polyline by joining the latitude and longitude but it is showing sometimes a straight line.



      I have attached two screenshots for that.
      enter image description here



      enter image description here
      The code which I used is here:



      private void setmMap() {
      progressDialog.show();

      if (broadcastReceiver == null)
      broadcastReceiver = new BroadcastReceiver() {
      @Override
      public void onReceive(Context context, Intent intent) {
      Log.d("Testing", "inside the setmap");
      // show progress dialog
      try {
      double latitude = intent.getDoubleExtra("lat", 22.560214);
      double longitude = intent.getDoubleExtra("longi", 22.560214);
      Log.d("SetMap", intent.getExtras().getString("time"));
      LatLng startLocation = new LatLng(latitude, longitude);
      m.setPosition(startLocation);
      points.add(startLocation);

      PolylineOptions options = new PolylineOptions().width(5).color(Color.BLUE).geodesic(true);
      for (int i = 0; i < points.size(); i++) {
      LatLng point = points.get(i);
      options.add(point);
      }
      line = mMap.addPolyline(options); //add Polyline
      mMap.moveCamera(CameraUpdateFactory.newLatLng(startLocation));
      mMap.animateCamera(CameraUpdateFactory.newLatLngZoom(startLocation, 15));
      progressDialog.cancel();
      Geocoder geocoder;
      List<Address> addresses;
      geocoder = new Geocoder(context, Locale.getDefault());
      addresses = geocoder.getFromLocation(latitude, longitude, 1);

      String address = addresses.get(0).getAddressLine(0); // If any additional address line present than only, check with max available address lines by getMaxAddressLineIndex()
      String city = addresses.get(0).getLocality();
      String state = addresses.get(0).getAdminArea();
      String country = addresses.get(0).getCountryName();
      String postalCode = addresses.get(0).getPostalCode();
      String strLoc = "Latitude:: "+latitude+" ::Longitude:: "+longitude+" ::Address:: "+address+" "+city+" "+
      state;
      Toast.makeText(getApplicationContext(),strLoc, Toast.LENGTH_LONG).show();
      } catch (Exception e) {
      e.printStackTrace();
      progressDialog.cancel();
      }
      }
      };
      registerReceiver(broadcastReceiver, new IntentFilter("carLocationService"));
      }


      Thanks,
      Arindam.







      android google-maps google-polyline






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      edited Nov 21 at 19:13

























      asked Nov 21 at 18:15









      Arindam Mukherjee

      94563472




      94563472
























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          1) you din't show part of code where marker m added, possible that code runs several times;



          2) seems bus location sensor's polling period is quite large and does not allow tracking bus turns (bus can make several turns between it's known locations). So you need to interpolate path between known bus locations for example with Google Directions API.






          share|improve this answer





















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            1 Answer
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            active

            oldest

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            1 Answer
            1






            active

            oldest

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            active

            oldest

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            active

            oldest

            votes








            up vote
            0
            down vote













            1) you din't show part of code where marker m added, possible that code runs several times;



            2) seems bus location sensor's polling period is quite large and does not allow tracking bus turns (bus can make several turns between it's known locations). So you need to interpolate path between known bus locations for example with Google Directions API.






            share|improve this answer

























              up vote
              0
              down vote













              1) you din't show part of code where marker m added, possible that code runs several times;



              2) seems bus location sensor's polling period is quite large and does not allow tracking bus turns (bus can make several turns between it's known locations). So you need to interpolate path between known bus locations for example with Google Directions API.






              share|improve this answer























                up vote
                0
                down vote










                up vote
                0
                down vote









                1) you din't show part of code where marker m added, possible that code runs several times;



                2) seems bus location sensor's polling period is quite large and does not allow tracking bus turns (bus can make several turns between it's known locations). So you need to interpolate path between known bus locations for example with Google Directions API.






                share|improve this answer












                1) you din't show part of code where marker m added, possible that code runs several times;



                2) seems bus location sensor's polling period is quite large and does not allow tracking bus turns (bus can make several turns between it's known locations). So you need to interpolate path between known bus locations for example with Google Directions API.







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Nov 22 at 9:44









                Andrii Omelchenko

                7,33462350




                7,33462350






























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