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@override\nWidget build(BuildContext context) {\n  return ColorFiltered(\n      colorFilter: ColorFilter.mode(Colors.grey, BlendMode.color),\n      child: Scaffold(\n        appBar: _appBar,\n        body: IndexedStack(\n          index: _currIndex,\n          children: <Widget>[HomeItemPage(), WidgetPage(), MyPage()],\n        ),\n        backgroundColor: Theme.of(context).backgroundColor,\n        bottomNavigationBar: _buildBottomNavigationBar(context),\n      ));\n}\n<\/code><\/pre> \n 

\u524d\u540e\u6548\u679c\u5bf9\u6bd4\u5982\u4e0b\uff1a<\/p> \n \n \n \n \n \n
<\/th> \n <\/th> \n <\/tr> \n <\/thead> \n
<\/td> \n <\/td> \n <\/tr> \n <\/tbody> \n <\/table> \n

\u4ea4\u6d41<\/h2> \n

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