[android] #3276 - WIP Android View Annotations, showing an Android SDK view on the screen

platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/annotations/Marker.java

@@ -16,6 +16,8 @@ import com.mapbox.mapboxsdk.maps.MapView;
  */
 public class Marker extends Annotation {
 
+    private MarkerView markerView;
+
     private LatLng position;
     private String snippet;
     private Icon icon;
@@ -78,6 +80,10 @@ public class Marker extends Annotation {
         if (map != null) {
             map.updateMarker(this);
         }
+
+        if(markerView!=null){
+            markerView.setLatLng(position);
+        }
     }
 
     void setSnippet(String snippet) {
@@ -141,6 +147,19 @@ public class Marker extends Annotation {
         return infoWindow;
     }
 
+    public MarkerView getMarkerView() {
+        return markerView;
+    }
+
+    void setMarkerView(MarkerView markerView) {
+        MapboxMap map = getMapboxMap();
+        if (map != null) {
+            this.markerView = markerView;
+            this.markerView.setLatLng(position);
+            map.addMarkerView(markerView);
+        }
+    }
+
     /**
      * Do not use this method. Used internally by the SDK.
      */

platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/annotations/MarkerView.java

@@ -0,0 +1,69 @@
+package com.mapbox.mapboxsdk.annotations;
+
+import android.content.Context;
+import android.graphics.PointF;
+import android.util.AttributeSet;
+import android.util.Log;
+import android.view.ViewGroup;
+import android.widget.FrameLayout;
+
+import com.mapbox.mapboxsdk.constants.MapboxConstants;
+import com.mapbox.mapboxsdk.geometry.LatLng;
+import com.mapbox.mapboxsdk.maps.MapView;
+import com.mapbox.mapboxsdk.maps.Projection;
+
+public class MarkerView extends FrameLayout {
+
+    private LatLng latLng;
+    private Projection projection;
+    private Marker marker;
+
+    private float widthOffset;
+    private float heightOffset;
+
+    public MarkerView(Context context) {
+        super(context);
+        init(context);
+    }
+
+    public MarkerView(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        init(context);
+    }
+
+    public MarkerView(Context context, AttributeSet attrs, int defStyleAttr) {
+        super(context, attrs, defStyleAttr);
+        init(context);
+    }
+
+    private void init(Context context){
+        setLayoutParams(new MapView.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT));
+    }
+
+    public void setProjection(Projection projection) {
+        this.projection = projection;
+    }
+
+    public void setLatLng(LatLng latLng) {
+        this.latLng = latLng;
+    }
+
+    public void setMarker(Marker marker) {
+        this.marker = marker;
+    }
+
+    @Override
+    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
+        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
+        widthOffset = getMeasuredWidth() / 2;
+        heightOffset = getMeasuredHeight() / 2;
+
+        Log.v(MapboxConstants.TAG,"Measure "+widthOffset + heightOffset);
+    }
+
+    public void update() {
+        PointF point = projection.toScreenLocation(latLng);
+        setX(point.x - widthOffset);
+        setY(point.y - heightOffset);
+    }
+}

platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/maps/MapView.java

@@ -65,6 +65,7 @@ import com.mapbox.mapboxsdk.annotations.Icon;
 import com.mapbox.mapboxsdk.annotations.IconFactory;
 import com.mapbox.mapboxsdk.annotations.InfoWindow;
 import com.mapbox.mapboxsdk.annotations.Marker;
+import com.mapbox.mapboxsdk.annotations.MarkerView;
 import com.mapbox.mapboxsdk.annotations.Polygon;
 import com.mapbox.mapboxsdk.annotations.Polyline;
 import com.mapbox.mapboxsdk.camera.CameraPosition;
@@ -1319,6 +1320,11 @@ public class MapView extends FrameLayout {
 
             mCompassView.update(getDirection());
             mMyLocationView.update();
+
+            for (MarkerView view : mMapboxMap.getMarkerViews()) {
+                view.update();
+            }
+
             for (InfoWindow infoWindow : mMapboxMap.getInfoWindows()) {
                 infoWindow.update();
             }

platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/maps/MapboxMap.java

@@ -20,6 +20,7 @@ import com.mapbox.mapboxsdk.annotations.Icon;
 import com.mapbox.mapboxsdk.annotations.InfoWindow;
 import com.mapbox.mapboxsdk.annotations.Marker;
 import com.mapbox.mapboxsdk.annotations.MarkerOptions;
+import com.mapbox.mapboxsdk.annotations.MarkerView;
 import com.mapbox.mapboxsdk.annotations.Polygon;
 import com.mapbox.mapboxsdk.annotations.PolygonOptions;
 import com.mapbox.mapboxsdk.annotations.Polyline;
@@ -58,9 +59,13 @@ public class MapboxMap {
     private CameraPosition mCameraPosition;
     private boolean mInvalidCameraPosition;
     private LongSparseArray<Annotation> mAnnotations;
+
     private List<Marker> mSelectedMarkers;
+    private List<MarkerView> mMarkerViews;
     private List<InfoWindow> mInfoWindows;
+
     private MapboxMap.InfoWindowAdapter mInfoWindowAdapter;
+    private MapboxMap.MarkerViewAdapter mMarkerViewAdapter;
 
     private boolean mMyLocationEnabled;
     private boolean mAllowConcurrentMultipleInfoWindows;
@@ -89,6 +94,7 @@ public class MapboxMap {
         mProjection = new Projection(mapView);
         mAnnotations = new LongSparseArray<>();
         mSelectedMarkers = new ArrayList<>();
+        mMarkerViews = new ArrayList<>();
         mInfoWindows = new ArrayList<>();
     }
 
@@ -613,6 +619,12 @@ public class MapboxMap {
     // Annotations
     //
 
+    public void addMarkerView(MarkerView markerView){
+        markerView.setProjection(mProjection);
+        mMarkerViews.add(markerView);
+        mMapView.addView(markerView);
+    }
+
     /**
      * <p>
      * Adds a marker to this map.
@@ -643,6 +655,14 @@ public class MapboxMap {
     @NonNull
     public Marker addMarker(@NonNull BaseMarkerOptions markerOptions) {
         Marker marker = prepareMarker(markerOptions);
+
+        if(mMarkerViewAdapter!=null){
+            MarkerView view = mMarkerViewAdapter.getView(marker);
+            if(view!=null) {
+                mMarkerViews.add(view);
+            }
+        }
+
         long id = mMapView.addMarker(marker);
         marker.setMapboxMap(this);
         marker.setId(id);
@@ -1001,6 +1021,18 @@ public class MapboxMap {
         return markers;
     }
 
+    @Nullable
+    public MarkerView getMarkerView(long id) {
+        MarkerView markerView = null;
+        List<Marker> markers = getMarkers();
+        for (Marker m : markers) {
+            if (m.getId() == id) {
+                markerView = m.getMarkerView();
+            }
+        }
+        return markerView;
+    }
+
     /**
      * Returns a list of all the polygons on the map.
      *
@@ -1133,6 +1165,10 @@ public class MapboxMap {
         return marker;
     }
 
+    public void setMarkerViewAdapter(@Nullable MarkerViewAdapter markerViewAdapter){
+        mMarkerViewAdapter = markerViewAdapter;
+    }
+
     //
     // InfoWindow
     //
@@ -1188,6 +1224,11 @@ public class MapboxMap {
         return mInfoWindows;
     }
 
+    //  used by MapView
+    List<MarkerView> getMarkerViews(){
+        return mMarkerViews;
+    }
+
     private boolean isInfoWindowValidForMarker(@NonNull Marker marker) {
         return !TextUtils.isEmpty(marker.getTitle()) || !TextUtils.isEmpty(marker.getSnippet());
     }
@@ -1715,6 +1756,12 @@ public class MapboxMap {
         View getInfoWindow(@NonNull Marker marker);
     }
 
+    public interface MarkerViewAdapter {
+
+        @Nullable
+        MarkerView getView(@NonNull Marker marker);
+    }
+
     /**
      * Interface definition for a callback to be invoked when the the My Location view changes location.
      *