id.com/reference/android/net/Uri.html?is-external=true" title="class or interface in android.net"><CODE>Uri</CODE></A>s if the given uri is not a media store uri or if no pre-generated thumbnail exists for the given
  uri. In addition, mixes the given mimeType, dateModified, and orientation into the cache key to detect and
  invalidate thumbnails if content is changed locally.
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<DT><B>Parameters:</B><DD><CODE>uri</CODE> - The uri representing the media.<DD><CODE>mimeTy