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How to remove default padding from ExpansionTile's header

By default we have 16 horizontal paddings in ExpansionTile's header, because it is ListTile and it has

/// If null, `EdgeInsets.symmetric(horizontal: 16.0)` is used.
    final EdgeInsetsGeometry contentPadding;

So we have spaces on left and right enter image description here

How to remove them?

Solution

  • The chosen answer is not working fully. In order to get it right you should go :

    ListTileTheme(
   contentPadding: EdgeInsets.all(0),
   dense: true,
   horizontalTitleGap: 0.0,
   minLeadingWidth: 0,
   child: ExpansionTile(...)
)