title: How to Hide Button in Flutter
body: <p>I need to Hide Button Untill I select one of the item from the list if I Selected the Item My Button Should be Visible</p>
  <p>like</p>
  <pre><code>bool visible = false
  
  if(itemSelected is Selected) {
  visible = true;
  } else {
  visible = false;
  };
  </code></pre>
  <p>Like This ?</p>