TickerProvider class

An interface implemented by classes that can vend Ticker objects.

Tickers can be used by any object that wants to be notified whenever a frame triggers, but are most commonly used indirectly via an AnimationController. AnimationControllers need a TickerProvider to obtain their Ticker. If you are creating an AnimationController from a State, then you can use the TickerProviderStateMixin and SingleTickerProviderStateMixin classes to obtain a suitable TickerProvider. The widget test framework WidgetTester object can be used as a ticker provider in the context of tests. In other contexts, you will have to either pass a TickerProvider from a higher level (e.g. indirectly from a State that mixes in TickerProviderStateMixin), or create a custom TickerProvider subclass.

Implemented by


Abstract const constructor. This constructor enables subclasses to provide const constructors so that they can be used in const expressions.


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


createTicker(TickerCallback onTick) Ticker
Creates a ticker with the given callback. [...]
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
toString() → String
Returns a string representation of this object.


operator ==(dynamic other) → bool
The equality operator. [...]