ConfigListener mixin Null safety

Provides a protocol for subscribed observers of the Config class to listen to.

A set of actions that allow an observing class to take action based on certain events, such as fetch operations or activations.


hashCode int
The hash code for this object.
read-only, inherited
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited


noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed.
onActivateComplete(bool isCache) → void
Informs the app when an activation is done.
onFetchError(bool isRetrying) → void
Informs the app when a fetch is initiated but fails for some reason.
onFetchNoChange() → void
Informs the app when a fetch is completed but no changed are made.
onFetchSuccess() → void
Informs the app when a fetch is initiated and completed with a change.
toString() String
A string representation of this object.


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