Flutter中Switch开关部件

Switch参数

const Switch({
  Key key,
  @required this.value,//true：开 false：关
  @required this.onChanged,//变化时回调
  this.activeColor,//打开状态下颜色
  this.activeTrackColor,//打开状态下track颜色
  this.inactiveThumbColor,//关闭状态thumb颜色
  this.inactiveTrackColor,//关闭状态track颜色
  this.activeThumbImage,打开状态下thumb图片
  this.inactiveThumbImage,关闭状态thumb图片
  this.materialTapTargetSize,点击区域
  this.dragStartBehavior = DragStartBehavior.start,
  this.focusColor,
  this.hoverColor,
  this.focusNode,
  this.autofocus = false,
})

Switch(
  value: _switch_flag,
  onChanged: (value){
    setState(() {
      _switch_flag=value;
    });
  },
),

SwitchListTile参数

 const SwitchListTile({
    Key key,
    @required this.value,
    @required this.onChanged,
    this.activeColor,
    this.activeTrackColor,
    this.inactiveThumbColor,
    this.inactiveTrackColor,
    this.activeThumbImage,
    this.inactiveThumbImage,
    this.title,
    this.subtitle,
    this.isThreeLine = false,//设置为true，高度变大
    this.dense,
    this.secondary,//左侧图标
    this.selected = false,
    })

SwitchListTile(
  title: Text('SwitchListTile部件'),
  subtitle: Text('SwitchListTile部件描述'),
  value: _switch_list_flag,
  onChanged: (value){
    setState(() {
      _switch_list_flag=value;
    });
  },

),