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<p>LISAsoft was able to get a subset of GeoTools working on the Android platform.</p>
<img class="editor-inline-macro" src="/plugins/servlet/confluence/placeholder/macro?definition=e3RvY30&amp;locale=en_GB&amp;version=2" data-macro-name="toc">
<p>The following are some notes if you would like to repeat and extend the experiment.</p>

<h1>Factory Fixes</h1>

<p>The changes to factory are actually pretty straight forward.</p>

<h2>Pluggable Factory System</h2>

<p>The Factory SPI system still works in android; but uses the official Java 6 technique of FactoryLocator (rather than the &quot;internal&quot; Java ImageIO FactoryRegistery system which we use).</p>

<p>The solution is to make the GeoTools factory system pluggable:</p>

<ul>
	<li>FactoryLocator for plugin discouvery</li>
	<li>FactoryFinder for the &quot;register&quot; functionality (keeping some instances available)</li>
</ul>

<p>This same work is needed for good OSGi support.</p>

<h2>Hints</h2>

<p>A strange consequence of using FactoryRegistery is our Hints / Hints.Key system. This code extends RenderingHints which is part of those ImageIO things that are not available in Andriod.</p>

<p>Jody was able to refactor our Hints to be a more simple Map; and continue to get the factory system to turn over.</p>
<ul>
	<li><a class="external-link" href="https://github.com/jive/geotools-andriod" rel="nofollow">https://github.com/jive/geotools-andriod</a></li>
</ul>

<h1>Image</h1>

<p>The AWT Image stuff is not available; so we need to make use of the android image subsystem.</p>

<h2>GridCoverage</h2>

<p>The GridCoverage interface should actually survive okay (it is an image with a bounding box after all). We just need to make an implementation that is an android image with a boding box and we can get back to work.</p>

<h2>Rendering</h2>

<p>This actually looks like a straight forward port; take a copy of gt-render and replace the Java Shapes and calls to drawing lines etc...</p>