Google map Android API v2 - InfoWindow on a polyline?

Question

I draw polylineon my map, now I need to show some data to the user.

How can I draw text or infowindow on each polyline?

I add polylineas:

ArrayList<LatLng> points = null;
PolylineOptions lineOptions = null;
MarkerOptions markerOptions = new MarkerOptions();

// Traversing through all the routes
for(int i=0;i<result.size();i++){
    points = new ArrayList<LatLng>();
    lineOptions = new PolylineOptions();
    String color = colors[i % colors.length];
    // Fetching i-th route
    List<HashMap<String, String>> path = result.get(i);

    // Fetching all the points in i-th route
    for(int j=0;j<path.size();j++){
        HashMap<String,String> point = path.get(j);

        double lat = Double.parseDouble(point.get("lat"));
        double lng = Double.parseDouble(point.get("lng"));
        LatLng position = new LatLng(lat, lng);

        points.add(position);
    }

    // Adding all the points in the route to LineOptions
    lineOptions.addAll(points);
    lineOptions.width(5);
    lineOptions.color(Color.parseColor(color));

    // Drawing polyline in the Google Map for the i-th route
    mMap.addPolyline(lineOptions);
}

For example, I need:

Answer 1

I do this by creating an invisible marker on the polyline and then showing its info window. For instance:

//use a transparent 1px & 1px box as your marker
BitmapDescriptor transparent = BitmapDescriptorFactory.fromResource(R.drawable.transparent);
MarkerOptions options = new MarkerOptions()
                .position(new LatLng(someLatitide, someLongitude))
                .title(someTitle)
                .snippet(someSnippet)
                .icon(transparent)
                .anchor((float) 0.5, (float) 0.5); //puts the info window on the polyline

Marker marker = mMap.addMarker(options);

//open the marker info window
marker.showInfoWindow();

, : 1. OnMapClickListener 2. onMapClick , . , , . (.. ), , , . , onMapClick. 3. onMapClick , , . , .

Answer 2

API Google Direction

OnPolylineClickListener Map getTag

mMap.setOnPolylineClickListener(new GoogleMap.OnPolylineClickListener() {
    @Override
    public void onPolylineClick(Polyline polyline) {
        Log.e("Polyline position", " -- " + polyline.getTag());
        onButtonShowPopupWindowClick("  " + polyline.getTag());
    }
});

setTag

            Polyline line = mMap.addPolyline(lineOptions);
            line.setTag("" + i);
            line.setClickable(true);

PopupWindow

public void onButtonShowPopupWindowClick ( ) {

String[] timeDistance = count.split(",");

// get a reference to the already created main layout
LinearLayout mainLayout = (LinearLayout)
        findViewById(R.id.whole_layout);

// inflate the layout of the popup window
LayoutInflater inflater = (LayoutInflater)
        getSystemService(LAYOUT_INFLATER_SERVICE);
View popupView = inflater.inflate(R.layout.polyline_window, null);

((TextView) popupView.findViewById(R.id.time)).setText("30 mins");
((TextView) popupView.findViewById(R.id.distance)).setText("20 km");

// create the popup window
int width = LinearLayout.LayoutParams.WRAP_CONTENT;
int height = LinearLayout.LayoutParams.WRAP_CONTENT;
boolean focusable = true; // lets taps outside the popup also dismiss it
final PopupWindow popupWindow = new PopupWindow(popupView, width, height, focusable);

// show the popup window
popupWindow.showAtLocation(mainLayout, Gravity.CENTER, 0, 0);

// dismiss the popup window when touched
popupView.setOnTouchListener(new View.OnTouchListener() {
    @Override
    public boolean onTouch(View v, MotionEvent event) {
        popupWindow.dismiss();
        return true;
    }
});

}