Flutter

Flutter button的类 

RaisedButton({
    Key key,
  //点击按钮的回调出发事件
    @required VoidCallback onPressed,
  //水波纹高亮变化回调
    ValueChanged onHighlightChanged,
  //按钮的样式（文字颜色、按钮的最小大小，内边距以及shape）[ Used with [ButtonTheme] and [ButtonThemeData] to define a button's base
//colors, and the defaults for the button's minimum size, internal padding,and shape.]
    ButtonTextTheme textTheme,
    //文字颜色
    Color textColor,
    //按钮被禁用时的文字颜色
    Color disabledTextColor,
    //按钮的颜色
    Color color,
    //按钮被禁用时的颜色  
    Color disabledColor,
    //按钮的水波纹亮起的颜色
    Color highlightColor,
    //水波纹的颜色
    Color splashColor,
    //按钮主题高亮
    Brightness colorBrightness,
    //按钮下面的阴影长度
    double elevation,
    //按钮高亮时的下面的阴影长度
    double highlightElevation,
    double disabledElevation,
    EdgeInsetsGeometry padding,
    ShapeBorder shape,
    Clip clipBehavior = Clip.none,
    MaterialTapTargetSize materialTapTargetSize,
    Duration animationDuration,
    Widget child,
  }

code

RaisedButton(
            textTheme: ButtonTextTheme.accent,
            color: Colors.teal,
            highlightColor: Colors.deepPurpleAccent,
            splashColor: Colors.deepOrangeAccent,
            colorBrightness: Brightness.dark,
            elevation: 50.0,
            highlightElevation: 100.0,
            disabledElevation: 20.0,
            onPressed: () {
              //TODO
            },
            child: Text(
              '这是按钮',
              style: TextStyle(color: Colors.white, fontSize: 40),
            ),
          )

 

悬浮按钮

FloatingActionButton({
    Key key,
    //  按钮上的组件，可以是Text、icon, etc.
    this.child,
    //长按提示
    this.tooltip,
    // child的颜色（尽在child没有设置颜色时生效）
    this.foregroundColor,
    //背景色，也就是悬浮按键的颜色
    this.backgroundColor,
    this.heroTag = const _DefaultHeroTag(),
    //阴影长度
    this.elevation = 6.0,
    //高亮时阴影长度
    this.highlightElevation = 12.0,
    //按下事件回调
    @required this.onPressed,
    //是小图标还是大图标
    this.mini = false,
    //按钮的形状(例如：矩形Border，圆形图标CircleBorder)
    this.shape = const CircleBorder(),
    this.clipBehavior = Clip.none,
    this.materialTapTargetSize,
    this.isExtended = false,
  })

code

FloatingActionButton(
      child: Icon(Icons.access_alarm),
      tooltip: "ToolTip",
      foregroundColor: Colors.white,
      backgroundColor: Colors.deepPurple,
      shape: const Border(),
      onPressed: () {
        //click callback
      },
    )

Flutter icon 名字地址  https://material.io/resources/icons/?style=baseline