LifeCycle class

author:郑再红 email:1096877329@qq.com date: 2023/12/22 time: 14:17 describe: 监听组件焦点，提供类似Android Activity的生命周期回调

Inheritance

Constructors

LifeCycle({required Widget child, VoidCallback? onCreate, VoidCallback? onStart, VoidCallback? onResume, VoidCallback? onPause, VoidCallback? onDestroy, double visibilityThreshold = 1.0, String? debugLabel, Key? key}): const

child → Widget: 子组件
final
debugLabel → String?: 调试标签，用于日志输出
final
hashCode → int: The hash code for this object.
no setterinherited
key → Key?: Controls how one widget replaces another widget in the tree.
finalinherited
onCreate → VoidCallback?: 开始创建widget时回调方法，可能还不可见
final
onDestroy → VoidCallback?: 销毁
final
onPause → VoidCallback?: 失去焦点
final
onResume → VoidCallback?: 得到焦点可见状态
final
onStart → VoidCallback?: 创建widget完成时回调方法
final
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
visibilityThreshold → double: 可见性阈值，默认1.0表示完全可见时才触发onResume 设置为0.5表示50%可见时就触发onResume 范围：0.0 - 1.0
final

createElement() → StatefulElement: Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → State<LifeCycle>: 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