如何在 Flutter 的 SingleChildScrollView 内滚动小部件？

Question

我在 SingleChildScrollView 中有 pdf 查看器。 Pdf 查看器不会仅滚动列。 如何使 Column 能够滚动并且 pdf 也能够滚动？

return Scaffold(
        appBar: AppBar(
          title: const Text('Nahranie súboru'),
          automaticallyImplyLeading: false,
        ),
        body: SingleChildScrollView(
          physics: const NeverScrollableScrollPhysics(),
          child: Column(
            mainAxisAlignment: MainAxisAlignment.center,
            crossAxisAlignment: CrossAxisAlignment.stretch,
            children: [
              SizedBox(
               child: SfPdfViewer.file(file), 
               height: 200, 
               width: double.infinity
              ),
              const SizedBox(height: 10),
              const PayRadioGroup(),
              const SizedBox(height: 10),
              const PayList(),
              const SizedBox(height: 10),
              ElevatedButton(
                  onPressed: () => uploadData(),
                  child: const Text('Odoslať Dáta'),
              ),
            ],
          ),
        ),
      );

Answer 1

尝试不使用 pdf 的大小盒。

return Scaffold(
        appBar: AppBar(
          title: const Text('Nahranie súboru'),
          automaticallyImplyLeading: false,
        ),
        body: SingleChildScrollView(
          child: Column(
            mainAxisSize : MainAxisSize.min
            mainAxisAlignment: MainAxisAlignment.center,
            crossAxisAlignment: CrossAxisAlignment.stretch,
            children: [
               SfPdfViewer.file(file), 
              const SizedBox(height: 10),
              const PayRadioGroup(),
              const SizedBox(height: 10),
              const PayList(),
              const SizedBox(height: 10),
              ElevatedButton(
                  onPressed: () => uploadData(),
                  child: const Text('Odoslať Dáta'),
              ),
            ],
          ),
        ),
      );