如何取出CupertinoPicker的衬垫？

Question

我有两个CupertinoPicker和一个我需要消除之间的差距，谁有一个想法？

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 Center(
        child: Row(
          children: [
            SizedBox(
                height: 200,
                width: 100,
                child: CupertinoPicker(
                    itemExtent: 20,
                    onSelectedItemChanged: (index) => setState(() {
                          this.index == index;
                        }),
                    children: definingHoursList())),
            SizedBox(
                height: 200,
                width: 100,
                child: CupertinoPicker(
                    itemExtent: 20,
                    onSelectedItemChanged: (index) => setState(() {
                          this.index == index;
                        }),
                    children: definingHoursList()))
          ],
        ),
      ),

Answer 1

看看CupertinoPickerDefaultSelectionOverlay文档类。

通过将其传递给CupertinoPicker，您可以禁用边距，但它也会丢失圆角。

  CupertinoPicker(
    selectionOverlay: const CupertinoPickerDefaultSelectionOverlay(
      capStartEdge: false,
      capEndEdge: false, 
    ),
    // other parameters,
  )