XML within an Android string resource?
Yes you can, just use CDATA
<string name="stringName1"><![CDATA[<html>bla</html>]]></string>
It will obviously not work unless you escape characters in there such as < or > or &.
If you do encode the XML, it should work fine but probably not the best way to do it. I would prefer binary resource.
For putting in string.xml, you may encode using
String encoded = URLEncoder.encode(xml);
And decoding is the opposite.
For binary, you place it in RAW folder and you get a binary stream and turn it to string and load.
I have done this way:
Put your string in strings.xml
<string name="my_string"><![CDATA[Your long text here]]></string>
How to use:
<TextView android:id="@+id/textView" android:text="@string/my_string" android:layout_width="wrap_content" android:layout_height="wrap_content" />
Done