Google map for android my location custom button

How can I change google map my location default button? I set my location enable and map draw standard image to find location, is it possible to change default image?

See below xml file to custom button:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <fragment
        android:id="@+id/maps"
        android:name="pl.mg6.android.maps.extensions.SupportMapFragment"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_marginLeft="10dp"
        android:layout_marginRight="10dp"
        android:layout_marginTop="5dp" >

        <ImageView
            android:id="@+id/imgMyLocation"
            android:layout_width="40dp"
            android:layout_height="40dp"
            android:scaleType="fitXY"
            android:src="@drawable/track_my_location" />
    </LinearLayout>

</RelativeLayout>

Then in java class, declare your location button:

private ImageView imgMyLocation;
        imgMyLocation = (ImageView) findViewById(R.id.imgMyLocation);

Click Event:

imgMyLocation.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                getMyLocation();

}

Get Location Method, in that just pass your current latitude and longitude.

private void getMyLocation() {
        LatLng latLng = new LatLng(Double.parseDouble(getLatitude()), Double.parseDouble(getLongitude()));
        CameraUpdate cameraUpdate = CameraUpdateFactory.newLatLngZoom(latLng, 18);
        googleMap.animateCamera(cameraUpdate);
    }
    });