How to remove extra padding around AppBar leading icon in Flutter

Question

In my Flutter app, I have this AppBar

Widget setAppBar(){   return new AppBar(     title: addAppBarTextWidget('Explore'),     elevation: 0.0,     leading: addLeadingIcon(),     actions: <Widget>[       addAppBarActionWidget(Constant.iconNotification, 22.0, 16.0, 8.0),       addAppBarActionWidget(Constant.iconProfile, 30.0, 30.0, 15.0)     ],   ); }  Widget addLeadingIcon(){   return new Container(     height: 25.0,     width: 25.0,     padding: const EdgeInsets.fromLTRB(0.0, 0.0, 0.0, 0.0),     margin: const EdgeInsets.fromLTRB(0.0, 0.0, 0.0, 0.0),     child: new Stack(       alignment: AlignmentDirectional.center,       children: <Widget>[         new Image.asset(           Constant.iconNotification,           width: 25.0,           height: 25.0,         ),         new FlatButton(             onPressed: (){               onLeadingShowCategoryClick();             }         )       ],     ),   ); } 

it looks like:

As you can see on the AppBar, there is some extra padding around the leading icon. How can I remove this extra padding.

Answer 1

Just add a property called titleSpacing,

Sample

appBar: AppBar(         leading: Icon(Icons.android),         titleSpacing: 0,         title: Text(widget.title),       ),