Flutter用Showdialog设计透明的List搜索界面，支持模糊关键字：
代码实现很简单，只要不给Container和BoxDecoration设置颜色即可，即可实现透明的效果，用的插件叫
searchable_listview: ^1.0.0，Flutter还蛮好玩的：
onPressed: () { showDialog( context: context, builder: (context) { return Container( decoration: BoxDecoration( // color: Colors.blue[100], border: Border.all( color: Colors.blue.shade100, width: 3.0, ), borderRadius: BorderRadius.circular(10), ), width: 510, padding: const EdgeInsets.all(20), // color: Colors.blue[100], alignment: Alignment.center, child: searchBCGMData_Page(), ); },