flutter - AppBar 参数设置布局效果

class MyHomePage extends StatelessWidget {
          
   
  @override
  Widget build(BuildContext context) {
          
   
    return Scaffold(
      appBar: AppBar(
        // backgroundColor: Colors.red,
        // backgroundColor: Color(0xff45ff41),
        leading: Container(
          padding: EdgeInsets.all(8),
          child: ClipOval(
            child: Image.network(
              "https://p3-juejin.byteimg.com/tos-cn-i-k3u1fbpfcp/ab5870542e8d4479bfb899ea7a195e4d~tplv-k3u1fbpfcp-watermark.image",
              fit: BoxFit.cover,
            ),
          ),
        ),
        title: Text("首页"),
        centerTitle: true,
        actions: [
          Row(
            children: [
              Text("右1"),
              SizedBox(width: 10),
              Text("右2"),
              SizedBox(width: 10),
              Text("右3"),
              SizedBox(width: 10),
            ],
          )
        ],
        elevation: 0.0
      ),
    );
  }
}

leading里放置一段文本，默认宽度下，文字过多时， 可能文字换行

设置 leadingWidth 后

设置titleSpacing