xtentMax"><span class="type-annotation"><a href="dart-core/double-class.html">double</a></span> <span class="parameter-name">scrollExtentMax</span>, </span> <span class="parameter" id="updateNode-param-scrollExtentMin"><span class="type-annotation"><a href="dart-core/double-class.html">double</a></span> <span class="parameter-name">scrollExtentMin</span>, </span> <span class="parameter" id="updateNode-param-rect"><span class="type-annotation"><a href="dart-ui/Rect-class.html">Rect</a></span> <span class="pa