constrain method

ConstrainedBox constrain({
  1. double? minWidth,
  2. double? maxWidth,
  3. double? minHeight,
  4. double? maxHeight,
})

限定尺寸 >>>

Implementation

ConstrainedBox constrain(
    {double? minWidth,
    double? maxWidth,
    double? minHeight,
    double? maxHeight}) {
  return ConstrainedBox(
    child: this,
    constraints: BoxConstraints(
        minWidth: minWidth ?? 0,
        minHeight: minHeight ?? 0,
        maxWidth: maxWidth ?? double.infinity,
        maxHeight: maxHeight ?? double.infinity),
  );
}