How to offset the balloon view in a marker in Google Map V2?

Question

When I click a marker, appears a balloon. But there are too space between the marker and the balloon, so how I can reduce this distance?. It's like using the setBalloonBottomOffset method in the V1 Google Map.

My custom balloon is this class:

public class CustomInfoWindowAdapter implements InfoWindowAdapter {

    private final View mWindow;
    private final View mContents;

    public CustomInfoWindowAdapter(Activity activity) {
        LayoutInflater inflater = (LayoutInflater) activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);

        mWindow = inflater.inflate(R.layout.ballon, null);
        mContents = inflater.inflate(R.layout.ballon, null);
    }

    @Override
    public View getInfoWindow(Marker marker) {
        render(marker, mWindow);
        return mWindow;
    }

    @Override
    public View getInfoContents(Marker marker) {
        render(marker, mContents);
        return mContents;
    }

    private void render(Marker marker, View view) {
        String title = marker.getTitle();
        TextView titleUi = ((TextView) view.findViewById(R.id.txtTitle));
        if (title != null) {
            titleUi.setText(title);
        } else {
            titleUi.setText("");
        }

        String snippet = marker.getSnippet();
        TextView snippetUi = ((TextView) view.findViewById(R.id.txtPlace));
        if (snippet != null) {
            snippetUi.setText(snippet);
        } else {
            snippetUi.setText("");
        }
    }
}

I show a marker like

marker.showInfoWindow();

My balloon xml is

<RelativeLayout
    android:layout_width="250dp"
    android:layout_height="75dp"
    android:background="@drawable/ballon" >

    <RelativeLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" >

        <LinearLayout
            android:id="@+id/linearLayout1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentLeft="true"
            android:orientation="vertical" >

            <TextView
                android:id="@+id/txtTitle"
                style="@style/Ballon_Title"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:ellipsize="end"
                android:paddingLeft="15dp"
                android:paddingRight="50dp"
                android:paddingTop="10dp"
                android:singleLine="true"
                android:text="Con mis amigos amigos" />

            <TextView
                android:id="@+id/txtPlace"
                style="@style/Ballon_Place"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:ellipsize="end"
                android:paddingBottom="20dp"
                android:paddingLeft="15dp"
                android:paddingRight="50dp"
                android:singleLine="true"
                android:text="Puerta del sol" />
        </LinearLayout>
    </RelativeLayout>

    <RelativeLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" >
    </RelativeLayout>

    <ImageView
        android:id="@+id/imageView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentRight="true"
        android:paddingRight="12dp"
        android:paddingTop="18dp"
        android:src="@drawable/icon_arrow" />
</RelativeLayout>

Answer 1

Map Markers are 'anchored' by default to the middle of the bottom of your layout (i.e., anchor(0.5,1)).

You can change the anchor point by using MarkerOptions.anchor when you create your Marker.