[android] Add SpriteFactory.drawable for custom markers

Used in InfoWindowAdapter activity
Fixes mapbox#2744

android/java/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/annotations/Annotation.java

@@ -4,8 +4,6 @@
 
 import com.mapbox.mapboxsdk.views.MapView;
 
-import java.lang.ref.WeakReference;
-
 public abstract class Annotation implements Comparable<Annotation> {
 
     /**
@@ -14,7 +12,7 @@ public abstract class Annotation implements Comparable<Annotation> {
      * Internal C++ id is stored as unsigned int.
      */
     private long id = -1; // -1 unless added to a MapView
-    private WeakReference<MapView> mapView;
+    private MapView mapView;
 
     protected Annotation() {
     }
@@ -27,10 +25,10 @@ public long getId() {
     }
 
     public void remove() {
-        if ((mapView == null) || (mapView.get() == null)) {
+        if (mapView == null) {
             return;
         }
-        mapView.get().removeAnnotation(this);
+        mapView.removeAnnotation(this);
     }
 
     /**
@@ -44,14 +42,14 @@ public void setId(long id) {
      * Do not use this method. Used internally by the SDK.
      */
     public void setMapView(MapView mapView) {
-        this.mapView = new WeakReference<>(mapView);
+        this.mapView = mapView;
     }
 
     protected MapView getMapView() {
         if (mapView == null) {
             return null;
         }
-        return mapView.get();
+        return mapView;
     }
 
     @Override

android/java/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/annotations/SpriteFactory.java

@@ -3,6 +3,9 @@
 import android.content.Context;
 import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
+import android.graphics.Canvas;
+import android.graphics.Rect;
+import android.graphics.drawable.Drawable;
 import android.os.Build;
 import android.util.DisplayMetrics;
 import android.view.WindowManager;
@@ -20,7 +23,6 @@ public final class SpriteFactory {
 
     private static final String SPRITE_ID_PREFIX = "com.mapbox.sprites.sprite_";
 
-    // TODO make weak
     private MapView mMapView;
     private Sprite mDefaultMarker;
     private BitmapFactory.Options mOptions;
@@ -62,6 +64,30 @@ public Sprite fromBitmap(Bitmap bitmap) {
         return new Sprite(id, bitmap);
     }
 
+    public Sprite fromDrawable(Drawable drawable) {
+        int width = drawable.getIntrinsicWidth();
+        int height = drawable.getIntrinsicHeight();
+
+        return fromDrawable(drawable, width, height);
+    }
+
+
+    public Sprite fromDrawable(Drawable drawable, int width, int height) {
+        if ((width < 0) || (height < 0)) {
+            return null;
+        }
+
+        Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
+        Canvas canvas = new Canvas(bitmap);
+        Rect temp = drawable.getBounds();
+        Rect bounds = new Rect(0, 0, width, height);
+        drawable.setBounds(bounds);
+        drawable.draw(canvas);
+        drawable.setBounds(temp);
+
+        return fromBitmap(bitmap);
+    }
+
     public Sprite fromResource(int resourceId) {
         Bitmap bitmap = BitmapFactory.decodeResource(mMapView.getResources(), resourceId);
         return fromBitmap(bitmap);

android/java/MapboxGLAndroidSDKTestApp/src/main/java/com/mapbox/mapboxsdk/testapp/InfoWindowAdapterActivity.java

@@ -1,8 +1,11 @@
 package com.mapbox.mapboxsdk.testapp;
 
 import android.graphics.Color;
+import android.graphics.PorterDuff;
+import android.graphics.drawable.Drawable;
 import android.os.Bundle;
 import android.support.annotation.NonNull;
+import android.support.v4.content.ContextCompat;
 import android.support.v7.app.ActionBar;
 import android.support.v7.app.AppCompatActivity;
 import android.support.v7.widget.Toolbar;
@@ -12,6 +15,8 @@
 
 import com.mapbox.mapboxsdk.annotations.Marker;
 import com.mapbox.mapboxsdk.annotations.MarkerOptions;
+import com.mapbox.mapboxsdk.annotations.Sprite;
+import com.mapbox.mapboxsdk.annotations.SpriteFactory;
 import com.mapbox.mapboxsdk.constants.Style;
 import com.mapbox.mapboxsdk.geometry.LatLng;
 import com.mapbox.mapboxsdk.utils.ApiAccess;
@@ -20,6 +25,8 @@
 public class InfoWindowAdapterActivity extends AppCompatActivity {
 
     private MapView mMapView;
+    private SpriteFactory mSpriteFactory;
+    private Drawable mIconDrawable;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
@@ -38,6 +45,10 @@ protected void onCreate(Bundle savedInstanceState) {
         mMapView = (MapView) findViewById(R.id.mapView);
         mMapView.setAccessToken(ApiAccess.getToken(this));
         mMapView.onCreate(savedInstanceState);
+
+        mSpriteFactory = new SpriteFactory(mMapView);
+        mIconDrawable = ContextCompat.getDrawable(this, R.drawable.ic_location_city_black_48dp);
+
         mMapView.setInfoWindowAdapter(new MapView.InfoWindowAdapter() {
 
             private int tenDp = (int) getResources().getDimension(R.dimen.attr_margin);
@@ -66,6 +77,10 @@ private MarkerOptions generateMarker(String title, double lat, double lng, Strin
         marker.title(title);
         marker.snippet(color);
         marker.position(new LatLng(lat, lng));
+
+        mIconDrawable.setColorFilter(Color.parseColor(marker.getSnippet()), PorterDuff.Mode.SRC_IN);
+        Sprite icon = mSpriteFactory.fromDrawable(mIconDrawable);
+        marker.icon(icon);
         return marker;
     }