NZFloatingActionButton class

NZFloatingActionButton 是一个多功能的悬浮按钮，支持：

  1. 拖动 (draggable)
  2. 图片背景 (image)
  3. 仅图标或图标加文字 (standard/icon)
  4. 滚动隐藏 (scroll to hide)
Inheritance

Constructors

NZFloatingActionButton({Key? key, required VoidCallback onPressed, Widget? icon, String? label, ImageProvider<Object>? image, NZFloatingActionButtonType type = NZFloatingActionButtonType.standard, bool draggable = false, Offset initialPosition = const Offset(20, 20), ScrollController? scrollController, Color? backgroundColor, Color? foregroundColor, Object? heroTag, String? tooltip})
const
NZFloatingActionButton.icon({Key? key, required VoidCallback onPressed, required Widget icon, bool draggable = false, Offset initialPosition = const Offset(20, 20), ScrollController? scrollController, Color? backgroundColor, Color? foregroundColor, Object? heroTag, String? tooltip})
快速创建仅图标样式 FAB
factory
NZFloatingActionButton.image({Key? key, required VoidCallback onPressed, required ImageProvider<Object> image, Widget? icon, bool draggable = false, Offset initialPosition = const Offset(20, 20), ScrollController? scrollController, Object? heroTag, String? tooltip})
快速创建图片背景样式 FAB
factory
NZFloatingActionButton.standard({Key? key, required VoidCallback onPressed, required Widget icon, required String label, bool draggable = false, Offset initialPosition = const Offset(20, 20), ScrollController? scrollController, Color? backgroundColor, Color? foregroundColor, Object? heroTag, String? tooltip})
快速创建标准样式 FAB (图标 + 文字)
factory

Properties

backgroundColor → Color?
背景颜色
final
draggable → bool
是否可以拖动
final
foregroundColor → Color?
前景颜色（图标和文字）
final
hashCode → int
The hash code for this object.
no setterinherited
heroTag → Object?
英雄动画标签
final
icon → Widget?
图标组件
final
image → ImageProvider<Object>?
背景图片（用于 image 模式）
final
initialPosition → Offset
初始位置（仅在 draggable 为 true 时生效）
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
label → String?
标签文本（用于 standard 模式）
final
onPressed → VoidCallback
点击回调
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
scrollController → ScrollController?
滚动控制器（用于实现滚动隐藏功能）
final
tooltip → String?
提示信息
final
type → NZFloatingActionButtonType
按钮类型
final

Methods

createElement() → StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → State<NZFloatingActionButton>
Creates the mutable state for this widget at a given location in the tree.
override
debugDescribeChildren() → List<DiagnosticsNode>
Returns a list of DiagnosticsNode objects describing this node's children.
inherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toDiagnosticsNode({String? name, DiagnosticsTreeStyle? style}) → DiagnosticsNode
Returns a debug representation of the object that is used by debugging tools and by DiagnosticsNode.toStringDeep.
inherited
toString({DiagnosticLevel minLevel = DiagnosticLevel.info}) → String
A string representation of this object.
inherited
toStringDeep({String prefixLineOne = '', String? prefixOtherLines, DiagnosticLevel minLevel = DiagnosticLevel.debug, int wrapWidth = 65}) → String
Returns a string representation of this node and its descendants.
inherited
toStringShallow({String joiner = ', ', DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String
Returns a one-line detailed description of the object.
inherited
toStringShort() → String
A short, textual description of this widget.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited