enum FSearchAnimationType {
  /// 渐变动画
  ///
  /// Alpha animation
  Fade,

  /// 缩放动画
  ///
  /// Scale animation
  Scale,

  /// 上下滚动动画
  ///
  /// Scroll up and down animation
  Scroll,
}

FSearch(

  /// 设置高
  ///
  /// Set height
  height: 30.0,
  
  /// 设置背景颜色
  ///
  /// Set background color
  backgroundColor: color,

  /// 设置输入内容样式
  ///
  /// Set input text style
  style: style,

  /// 点击键盘搜索时触发
  ///
  /// Fired when you click on the keyboard to search
  onSearch: (value) {
    /// do something
  },

  prefixes: [buildAction()],
)

FSearch(
  height: 30.0,
  backgroundColor: mainBackgroundColor,
  style: style,

  /// 前缀 Widget
  ///
  /// prefix widget
  prefixes: [ buildAction() ],

  /// 后缀 Widget
  ///
  /// suffix widget
  suffixes: [
    buildAction_1(),
    buildAction_2(),
    buildAction_3(),
  ],
  onSearch: _onSearch,
)

FSearch(
  height: 30.0,
  backgroundColor: mainBackgroundColor,
  style: style,

  /// 配置渐变色
  ///
  /// Set gradient
  gradient: _gradient,
  prefixes: [ buildAction() ],
)

/// #1
FSearch(
  height: 30.0,
  backgroundColor: color,
  style: style,

  /// 边角
  ///
  /// Corner
  corner: FSearchCorner(
      leftTopCorner: 15.0,
      leftBottomCorner: 15.0,
      rightBottomCorner: 15.0),

  /// 边框宽
  ///
  /// border width
  strokeWidth: 1.0,

  /// 边框颜色
  ///
  /// border color
  strokeColor: mainTextTitleColor,

  /// 阴影
  ///
  /// shadow
  shadowColor: Colors.black38,
  shadowBlur: 5.0,
  shadowOffset: Offset(2.0, 2.0),
  prefixes: [buildAction()],
)

/// #2
FSearch(
  height: 30.0,
  backgroundColor: color,
  style: style,

  /// 边角
  ///
  /// Corner
  corner: FSearchCorner.all(6.0),

  /// 边角风格
  ///
  /// Corner style
  cornerStyle: FSearchCornerStyle.bevel,
  prefixes: [buildAction()],
)

FSearch(
  /// 光标配置
  ///
  /// Cursor
  cursorColor: Colors.red[200],
  cursorRadius: 5.0,
  cursorWidth: 5.0,

  height: 36.0,
  style: style,
  gradient: _gradient,
  corner: _corner,
  prefixes: [ buildAction() ],
  suffixes: [ buildAction() ],
)

/// #1
FSearch(
  height: 36.0,
  style: style,
  color: _color,
  corner: _corner,
  prefixes: [ buildAction() ],
  suffixes: [ buildAction() ],

  /// Hints
  hints: [
    "FSuper is awesome 👍",
    "Come to use FButton",
    "You will love FSearch",
  ],

  /// 开启 hint 交换动画
  ///
  /// Turn on hint exchange animation
  hintSwitchEnable: true,

  /// 配置 hint 交换动画类型
  ///
  /// Configure hint exchange animation type
  hintSwitchType: FSearchAnimationType.Fade,
)

/// #2
FSearch(
  height: 36.0,
  style: style,
  color: _color,
  corner: _corner,
  prefixes: [ buildAction() ],
  suffixes: [ buildAction1(),  buildAction2()],
  hints: [
    "Do you want to try FFloat?😃",
    "FRadio can do more 😱 !",
    "I heard that you have been waiting for FDottedLine for a long time...",
  ],
  hintSwitchEnable: true,
)

/// #3
FSearch(
  height: 36.0,
  style: style,
  color: _color,
  corner: _corner,
  prefixes: [ buildAction() ],
  suffixes: [ buildAction() ],

  /// Hints
  hints: [
    "Embrace FWidget 👬",
    "We care about your app 🥰",
    "Want to build beautiful apps 🤨 ?",
  ],
  hintSwitchEnable: true,

  /// 配置 hint 交换动画类型
  ///
  /// Configure hint exchange animation type
  hintSwitchType: FSearchAnimationType.Scale,

  /// 获得焦点时是否停止交换动画
  ///
  /// Whether to stop exchanging animation when focus is obtained
  stopHintSwitchOnFocus: false,
)

FSearch(
  controller: _controller,
  height: 36.0,
  style: style,
  gradient: _gradient,
  corner: _corner,
  prefixes: [ buildAction() ],
  suffixes: [ buildAction() ],
  hints: [
    "Want more beautiful widgets 🤨 ?",
    "We will launch the official website of FWidget",
    "Will you expect it?",
  ],
  hintStyle: hintStyle,
  hintSwitchEnable: true,
)

/// 获取输入框内容
///
/// Get the input box content
String input = controller.text;

/// 清空输入框内容
///
/// Clear the contents of the input box
controller.text = null;

/// 获取当前 hint，如果有的话
///
/// Get the current hint, if any
String hint = controller.hint;

/// 移除焦点
/// 
/// Remove focus
controller.clearFocus();


/// 获取焦点
///
/// Request focus
controller.requestFocus();