onDispose method

@protected @nonVirtual void onDispose(VoidCallback func)

Call this function to register a callback to be called when disposing (i.e. when State.dispose is called).

• the registered callbacks will be invoked in reverse order (i.e. the last registered callback will be invoked first).
• the callbacks are invoked after hookDispose is called.

Implementation

@protected
@nonVirtual
void onDispose(VoidCallback func) {
	this._arrOnDisposeCallbacks.add(func);
}