title: Expand particular group in ExpandableListView programmatically
body: <p>[My question is not duplicate because I haven't used ImageView]
  I tried with below method, but it expands all groups</p>
  
  <pre><code> //method to expand all groups
      private void expandAll() {
          int count = expandableCategoryAdapter.getGroupCount().;
          for (int i = 0; i &lt; count; i++) {
              expandableListView.expandGroup(i);
          }
      }
  </code></pre>