How to create a custom-shaped bitmap marker with Android map API v2 [duplicate]

Answer 1

I hope it still not too late to share my solution. Before that, you can follow the tutorial as stated in Android Developer documentation. To achieve this, you need to use Cluster Manager with defaultRenderer.

1. Create an object that implements ClusterItem

   public class SampleJob implements ClusterItem {
   
   private double latitude;
   private double longitude;
   
   //Create constructor, getter and setter here
   
   @Override
   public LatLng getPosition() {
       return new LatLng(latitude, longitude);
   }
   

2. Create a default renderer class. This is the class that do all the job (inflating custom marker/cluster with your own style). I am using Universal image loader to do the downloading and caching the image.

   public class JobRenderer extends DefaultClusterRenderer< SampleJob > {
   
   private final IconGenerator iconGenerator;
   private final IconGenerator clusterIconGenerator;
   private final ImageView imageView;
   private final ImageView clusterImageView;
   private final int markerWidth;
   private final int markerHeight;
   private final String TAG = "ClusterRenderer";
   private DisplayImageOptions options;
   
   
   public JobRenderer(Context context, GoogleMap map, ClusterManager clusterManager) {
       super(context, map, clusterManager);
   
       // initialize cluster icon generator
       clusterIconGenerator = new IconGenerator(context.getApplicationContext());
       View clusterView = LayoutInflater.from(context).inflate(R.layout.multi_profile, null);
       clusterIconGenerator.setContentView(clusterView);
       clusterImageView = (ImageView) clusterView.findViewById(R.id.image);
   
       // initialize cluster item icon generator
       iconGenerator = new IconGenerator(context.getApplicationContext());
       imageView = new ImageView(context.getApplicationContext());
       markerWidth = (int) context.getResources().getDimension(R.dimen.custom_profile_image);
       markerHeight = (int) context.getResources().getDimension(R.dimen.custom_profile_image);
       imageView.setLayoutParams(new ViewGroup.LayoutParams(markerWidth, markerHeight));
       int padding = (int) context.getResources().getDimension(R.dimen.custom_profile_padding);
       imageView.setPadding(padding, padding, padding, padding);
       iconGenerator.setContentView(imageView);
   
       options = new DisplayImageOptions.Builder()
               .showImageOnLoading(R.drawable.circle_icon_logo)
               .showImageForEmptyUri(R.drawable.circle_icon_logo)
               .showImageOnFail(R.drawable.circle_icon_logo)
               .cacheInMemory(false)
               .cacheOnDisk(true)
               .considerExifParams(true)
               .bitmapConfig(Bitmap.Config.RGB_565)
               .build();
   }
   
   @Override
   protected void onBeforeClusterItemRendered(SampleJob job, MarkerOptions markerOptions) {
   
   
       ImageLoader.getInstance().displayImage(job.getJobImageURL(), imageView, options);
       Bitmap icon = iconGenerator.makeIcon(job.getName());
       markerOptions.icon(BitmapDescriptorFactory.fromBitmap(icon)).title(job.getName());
   
   
   }
   
   @Override
   protected void onBeforeClusterRendered(Cluster cluster, MarkerOptions markerOptions) {
   
       Iterator iterator = cluster.getItems().iterator();
       ImageLoader.getInstance().displayImage(iterator.next().getJobImageURL(), clusterImageView, options);
       Bitmap icon = clusterIconGenerator.makeIcon(iterator.next().getName());
       markerOptions.icon(BitmapDescriptorFactory.fromBitmap(icon));
   }
   
   @Override
   protected boolean shouldRenderAsCluster(Cluster cluster) {
       return cluster.getSize() > 1;
   }
   

3. Apply cluster manager in your activity/fragment class.

   public class SampleActivity extends AppCompatActivity implements OnMapReadyCallback {
   
   private ClusterManager mClusterManager;
   private GoogleMap mMap;
   private ArrayList jobs = new ArrayList();
   
   @Override
   protected void onCreate(Bundle savedInstanceState) {
       super.onCreate(savedInstanceState);
       setContentView(R.layout.activity_landing);
   
       SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
               .findFragmentById(R.id.map);
       mapFragment.getMapAsync(this);
   }
   
   
   @Override
   public void onMapReady(GoogleMap googleMap) {
       mMap = googleMap;
       mMap.getUiSettings().setMapToolbarEnabled(true);
       mClusterManager = new ClusterManager(this, mMap);
       mClusterManager.setRenderer(new JobRenderer(this, mMap, mClusterManager));
       mMap.setOnCameraChangeListener(mClusterManager);
       mMap.setOnMarkerClickListener(mClusterManager);
   
       //Assume that we already have arraylist of jobs
   
   
       for(final SampleJob job: jobs){
           mClusterManager.addItem(job);
       }
       mClusterManager.cluster();
   }
   

4. Result