Flutter运行时报如下错误
An InputDecorator, which is typically created by a TextField, cannot have an unbounded width.
原因
TextField 没有被限定大小。
解决方法
使用Container包起来,如果时column或者row可以用Expanded包起来。
content: Container(
width: 200,
child: TextField(
controller: _textEditingController,
decoration: const InputDecoration(hintText: "请输入数据"),
),
),