Google Maps API v2 Android add shape drawable as marker

Create a drawable for your marker (res/drawable/map_dot_red.xml):

<?xml version="1.0" encoding="utf-8"?><shape xmlns:android="http://schemas.android.com/apk/res/android"    android:shape="oval" >    <gradient        android:angle="90"        android:endColor="#f58383"        android:startColor="#ee6464" />    <stroke        android:width="1dp"        android:color="#a13939" /></shape>

Create a bitmap from the drawable:

int px = getResources().getDimensionPixelSize(R.dimen.map_dot_marker_size);mDotMarkerBitmap = Bitmap.createBitmap(px, px, Bitmap.Config.ARGB_8888);Canvas canvas = new Canvas(mDotMarkerBitmap);Drawable shape = getResources().getDrawable(R.drawable.map_dot_red);shape.setBounds(0, 0, mDotMarkerBitmap.getWidth(), mDotMarkerBitmap.getHeight());shape.draw(canvas);

Create your marker, using the bitmap:

Marker marker = mMap.addMarker(new MarkerOptions()    .position(point)    .anchor(.5f, .5f)    .icon(BitmapDescriptorFactory.fromBitmap(mDotMarkerBitmap)));

Set the size of your marker in dimens (res/values/dimens.xml):

<resources>    <dimen name="map_dot_marker_size">12dp</dimen></resources>

Here's an answer if you're using the com.google.maps.android:android-maps-utils library.

Create a Bitmap using IconGenerator

IconGenerator iconGen = new IconGenerator(context);// Define the size you want from dimensions fileint shapeSize = getResources().getDimensionPixelSize(R.dimen.shape_size);Drawable shapeDrawable = ResourcesCompat.getDrawable(getResources(), R.drawable.my_shape, null);iconGen.setBackground(shapeDrawable);// Create a view container to set the sizeView view = new View(context);view.setLayoutParams(new ViewGroup.LayoutParams(shapeSize, shapeSize));iconGen.setContentView(view);// Create the bitmapBitmap bitmap = iconGen.makeIcon();

Then use the bitmap like you would when setting the marker icon BitmapDescriptorFactory.fromBitmap(bitmap)

My way to deal with shape (xml) drawables as marker icons (based on saxman answer).

I have a lot of objects (markers) to show on map. They have both kinds of drawables – bitmap and shape. The same icon my used for multiple markers. Thus, I have added some caching for bitmap descriptors and drawable type detection.

SparseArray<BitmapDescriptor> iconCache = new SparseArray<>();for (MyObject object : objects) {    int iconResId = object.icon;    BitmapDescriptor icon = iconCache.get(iconResId);    if (icon == null) {        Drawable drawable;        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {            drawable = getResources().getDrawable(iconResId, null);        } else {            drawable = getResources().getDrawable(iconResId);        }        if (drawable instanceof GradientDrawable) {            Bitmap bitmap = Bitmap.createBitmap(drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight(), Bitmap.Config.ARGB_8888);            Canvas canvas = new Canvas(bitmap);            drawable.setBounds(0, 0, bitmap.getWidth(), bitmap.getHeight());            drawable.draw(canvas);            icon = BitmapDescriptorFactory.fromBitmap(bitmap);            bitmap.recycle();        } else {            icon = BitmapDescriptorFactory.fromResource(iconResId);        }        iconCache.put(iconResId, icon);        map.addMarker(new MarkerOptions()            .icon(icon)            .position(position));    }}

My shape drawable have set size, thus, I can query drawable for desired size for bitmap.

<?xml version="1.0" encoding="utf-8"?><shape xmlns:android="http://schemas.android.com/apk/res/android"    android:shape="oval">    <size android:width="12dp" android:height="12dp" />    <solid android:color="@color/transit_bus" /></shape>