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谷歌地图折线不适用于Android 5.0版(棒棒糖)

作者:互联网

我正在尝试为googlemap绘制折线,它工作正常到Android版本4.4(kitkat),但它不能在android 5.0(棒棒糖).怎么做在棒棒糖工作也.你能不能帮我解决这个问题这是我的谷歌地图代码

public class MapLocation extends FragmentActivity implements OnMarkerClickListener {

    GoogleMap map;
    ArrayList<LatLng> markerPoints;

    LatLng origin,dest1,dest2,dest3;    
    Marker marker1,marker2,marker3;

    PolylineOptions lineOptions = new PolylineOptions();

    Polyline line ;
    int pos;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        //this.requestWindowFeature(Window.FEATURE_NO_TITLE);
        setContentView(R.layout.gmap_direction);

        markerPoints = new ArrayList<LatLng>();

        // Getting reference to SupportMapFragment of the activity_main
        SupportMapFragment fm = (SupportMapFragment)getSupportFragmentManager().findFragmentById(R.id.map);

        // Getting Map for the SupportMapFragment
        map = fm.getMap();      

        if(map!=null){

            // Enable MyLocation Button in the Map
            map.setMyLocationEnabled(true);     

            // Getting LocationManager object from System Service LOCATION_SERVICE
            LocationManager locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);

            // Creating a criteria object to retrieve provider
            Criteria criteria = new Criteria();

            // Getting the name of the best provider
            String provider = locationManager.getBestProvider(criteria, true);

            // Getting Current Location
            Location location = locationManager.getLastKnownLocation(provider);
            pos = getIntent().getIntExtra("pos",0); 
            try{
            switch (pos) {

               case 1:

                   dest2 = new LatLng(18.545981, 73.902132);
                   marker2 = map.addMarker(new MarkerOptions().position(dest2).title("Vivero International Preschool").snippet("PUNE,KALYANINAGAR").icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_RED)));
                   break;
               case 2:

                   dest2 = new LatLng(17.429122, 78.412745);
                   marker2 =  map.addMarker(new MarkerOptions().position(dest2).title("Vivero International Preschool").snippet("Jubilee Hills").icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_RED)));
                   break;
               case 3:

                   dest2 =  new LatLng(19.115177, 72.909486);
                   marker2 = map.addMarker(new MarkerOptions().position(dest2).title("Vivero International Preschool").snippet("MUMBAI, POWAI").icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_RED)));
                   break;
               case 4:

                   dest2 = new LatLng(18.545981, 73.902132);
                   marker2 =  map.addMarker(new MarkerOptions().position(dest2).title("Vivero International Preschool").snippet("PUNE,MAGARPATTA").icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_RED)));
                   break;
               case 5:

                   dest2 = new LatLng(12.924438, 77.631537);
                   marker2 =  map.addMarker(new MarkerOptions().position(dest2).title("Vivero International Preschool").snippet("Koramangala").icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_RED)));
                   break;
               case 6:

                   dest2 =  new LatLng(12.9044019,77.6690773);
                   marker2 = map.addMarker(new MarkerOptions().position(dest2).title("Vivero International Preschool").snippet("Sarjapur").icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_RED)));
                   break;
               case 7:

                   dest2 = new LatLng(12.972442, 77.639195);
                   marker2 =  map.addMarker(new MarkerOptions().position(dest2).title("Vivero International Preschool").snippet("Indiranagar").icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_RED)));
                   break;
               case 8:

                   dest2 = new LatLng(12.968719, 77.747883);
                   marker2 =  map.addMarker(new MarkerOptions().position(dest2).title("Vivero International Preschool").snippet("Whitefield").icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_RED)));
                   break;
                   //  dest1 = new LatLng(19.115177, 72.909486);
            }

            // Showing the current location in Google Map
            map.moveCamera(CameraUpdateFactory.newLatLng(dest2));

            // Zoom in the Google Map
            map.animateCamera(CameraUpdateFactory.zoomTo(15));     

            marker2.showInfoWindow();   


            if(location!=null){
                onLocationChanged(location);

            String url = getDirectionsUrl(origin, dest2);               

            DownloadTask downloadTask = new DownloadTask();

            // Start downloading json data from Google Directions API
            downloadTask.execute(url);
            }
            }
            catch(Exception e){

            }
        }       
    }
    /** A class to parse the Google Places in JSON format */
    private class ParserTask extends AsyncTask<String, Integer, List<List<HashMap<String,String>>> >{

        // Parsing the data in non-ui thread        
        @Override
        protected List<List<HashMap<String, String>>> doInBackground(String... jsonData) {

            JSONObject jObject; 
            List<List<HashMap<String, String>>> routes = null;                     

            try{
                jObject = new JSONObject(jsonData[0]);
                DirectionsJSONParser parser = new DirectionsJSONParser();

                // Starts parsing data
                routes = parser.parse(jObject);    
            }catch(Exception e){
                e.printStackTrace();
            }
            return routes;
        }

        // Executes in UI thread, after the parsing process
        @Override
        protected void onPostExecute(List<List<HashMap<String, String>>> result) {
            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();              

                // 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(4);
                lineOptions.color(Color.BLUE);

            }

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

解决方法:

尝试修改onPostExecute的代码:

@Override
protected void onPostExecute(List<List<HashMap<String, String>>> result) {
        ArrayList<LatLng> points = null;
        //PolylineOptions lineOptions = null;

        //MarkerOptions markerOptions = new MarkerOptions();

        points = new ArrayList<LatLng>();

        // Traversing through all the routes
        for(int i=0;i<result.size();i++){
            //points = new ArrayList<LatLng>();
            //lineOptions = new PolylineOptions();              

            // 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(4);
            //lineOptions.color(Color.BLUE);

        }

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

        lineOptions.addAll(points);
        lineOptions.width(4);
        lineOptions.color(Color.BLUE); 
        line = map.addPolyline(lineOptions);
    }           

我在for循环之前移动了列表点实例,在for循环之后移动了lineOptions.

希望这有帮助.

标签:polyline,android,google-maps,android-5-0-lollipop
来源: https://codeday.me/bug/20191003/1846810.html