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class Charts extends StatelessWidget
{const Charts
();
@override
Widget build
(BuildContext context
) {return DefaultTabController
(length: 2,
child: Scaffold
(appBar: AppBar
(title: const TabBar
(tabs:
[Tab
(text: 'BTCUSD'
),
Tab
(text: 'ETHUSD'
),
],
),
),
body: const TabBarView
(children:
[ChartView
(key: Key
('BTCUSD'
),
instrumentId: 'BTCUSD',
),
ChartView
(key: Key
('ETHUSD'
),
instrumentId: 'ETHUSD',
),
],
),
),
);
}hh
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