Renderflex在底部溢出

Column(
  children: [
    Expanded(
      child: Container(
        color: Colors.red,
        child: ListView.builder(
          itemCount: 100,
          itemBuilder: (context, index) {
            return ListTile(title: Text('Item $index'));
          },
        ),
      ),
    ),
    Container(
      height: 50,
      color: Colors.blue,
    ),
  ],
);

SingleChildScrollView(
  child: Column(
    children: List.generate(100, (index) {
      return ListTile(title: Text('Item $index'));
    }),
  ),
);

Container(
  height: MediaQuery.of(context).size.height,
  child: Column(
    children: List.generate(100, (index) {
      return ListTile(title: Text('Item $index'));
    }),
  ),
);

OverflowBox(
  minHeight: 0.0,
  maxHeight: double.infinity,
  child: Column(
    children: List.generate(100, (index) {
      return ListTile(title: Text('Item $index'));
    }),
  ),
);