Inflated view does not get dimmensions from xml

Question

I'm trying to add custom view to google map Marker:

1. I inflate a layout. <- this is the problem
2. Then transform it to Bitmap.
3. Generate Marker.

So I have layout home_marker_container.xml:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="@dimen/home_map_marker_size"
    android:layout_height="@dimen/home_map_marker_size"
    android:background="@color/black"
    android:id="@+id/frame">


    <TextView
        android:layout_width="12dp"
        android:layout_height="12dp"
        android:text="5"
        android:textSize="10dp"
        android:background="@color/white"
        android:layout_centerInParent="true"
        android:gravity="center" />

</RelativeLayout>

and I inflate it with

ViewGroup home_marker_container = (ViewGroup) layoutInflater.inflate(R.layout.home_marker_container, null, false);

Then transform View to Bitmap:

So I add it to marker with Google Maps Android API Utility Library via IconGenerator which basically transforms View to Bitmap:

iconGenerator.setContentView(home_marker_container);
iconGenerator.setContentPadding(horizontal_padding, vertical_padding, horizontal_padding, vertical_padding);
Bitmap iconBitmap = iconGenerator.makeIcon();

And after that I realized that inflating does not work as I expected because I give null to ViewGroup root parameter in inflate(int resource, ViewGroup root, boolean attachToRoot) and thus

android:layout_width="@dimen/home_map_marker_size"
android:layout_height="@dimen/home_map_marker_size"

is not taken from xml. Why and how to fix it?

Answer 1

As there's no root, according to docs, root is returned from inflate so I set size to the root manually with:

View markerView;
markerView = layoutInflater.inflate(R.layout.marker1, null);
markerView.setLayoutParams(new ViewGroup.LayoutParams(80, 80));;