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2022年版 flutterでbottom sheetを表示する方法

Posted at

最近のアプリでは一般的になっているbottom sheet

  void _showBottomSheetMenu(BuildContext context) {
    showModalBottomSheet(
        context: context,
        shape: const RoundedRectangleBorder(
          borderRadius: BorderRadius.vertical(top: Radius.circular(25.0)),
        ),
        builder: (builder) {
          return Container(
            height: 350.0,
            color: Colors.transparent,
            child: const Center(
              child: Text("This is a modal sheet"),
            ),
          );
        });
  }

このようなメソッドを定義して
例えばfloatingActionButtonのonPressedで呼び出すなら

      floatingActionButton: FloatingActionButton(
        onPressed: (){
          _showBottomSheetMenu(context);
        },
        child: const Icon(Icons.add)
      ),

こんな感じでできてしまう
スクリーンショット 2022-07-30 13.04.31.png

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