Building Flex using ant build files is generally straightforward. Unfortunately, this is not so with using custom HTML wrappers. You cannot use the html-wrapper task since this only uses the standard templates in Flex’s html-template folder. If you want to use your own index.template.html in your own html-template folder, you will need to use a workaround:
<macrodef name=”generateHtmlWrapper” description=”Generates HTML  Wrapper using custom template”>
 <attribute name=”file”/>
 <attribute name=”title”/>
 <attribute  name=”application”/>
 <attribute name=”swf”/>
 <attribute name=”width”/>
 <attribute name=”height”/>
 <attribute name=”bgcolor”/>
 <attribute  name=”version-major”/>
 <attribute name=”version-minor”/>
 <attribute name=”version-revision”/><attribute  name=”template”/> <attribute name=”output”/>
<sequential>
 <copy todir=”@{output}/history”>
 <fileset dir=”html-template/history”/>
 </copy>             
 <copy  file=”html-template/AC_OETags.js” todir=”@{output}”/> 
 <copy  file=”html-template/playerProductInstall.swf” todir=”@{output}” /> 
 <copy file=”html-template/index.template.html”  tofile=”@{output}/@{file}” />
<replace file=”@{output}/@{file}” token=”$${title}”  value=”@{title}”/> 
 <replace file=”@{output}/@{file}”  token=”$${swf}” value=”@{swf}”/> 
 <replace  file=”@{output}/@{file}” token=”$${width}” value=”@{width}”/> 
 <replace file=”@{output}/@{file}” token=”$${height}”  value=”@{height}”/> 
 <replace file=”@{output}/@{file}”  token=”$${bgcolor}” value=”@{bgcolor}”/> 
 <replace  file=”@{output}/@{file}” token=”$${application}”  value=”@{application}”/> 
 <replace file=”@{output}/@{file}”  token=”$${version_major}” value=”@{version-major}”/> 
 <replace  file=”@{output}/@{file}” token=”$${version_minor}”  value=”@{version-minor}”/> 
 <replace file=”@{output}/@{file}”  token=”$${version_revision}” value=”@{version-revision}”/> 
 </sequential> 
</macrodef>
Thanks to Renaun Erickson for the solution!
