LifecycleObserver class abstract

生命周期观察者 通过 onLifecycleChanged 监听 生命周期变化 任何对象可以通过实现此类，并将自身添加到被观察者 LifecycleObservable，实现监听生命周期变化

Constructors

LifecycleObserver()

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

onLifecycleChanged(LifecycleOwner owner, LifecycleState state) → void

widget 状态改变回调

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited