Chip

 const Chip({
    Key key,
    this.avatar, //头部组件
    @required this.label,//标签内容
    this.labelStyle, //标签字体样式
    this.labelPadding,//标签间距
    this.deleteIcon,//删除按钮
    this.onDeleted,//删除回调
    this.deleteIconColor,//删除按钮颜色
    this.deleteButtonTooltipMessage,
    this.shape,
    this.clipBehavior = Clip.none,//
    this.focusNode,
    this.autofocus = false,
    this.backgroundColor,//背景颜色
    this.padding,//控件左右间距
    this.visualDensity,
    this.materialTapTargetSize,
    this.elevation,
    this.shadowColor,//阴影颜色
  })