A navigator class that can switch between Scenes, but has no 'back' behavior of its own.

This Navigator is able to save and restore its instance state in saveInstanceState, but does not implement SavableNavigator itself. You can opt in to this state saving by explicitly implementing the SavableNavigator interface.

Creates the initial Navigator for this CompositeReplacingNavigator.

Will only be called once in the lifetime of this Navigator, and zero times if this Navigator is being restored from a saved state.

Instantiates a Navigator instance for given navigatorClass and state.

This function is called when restoring the CompositeReplacingNavigator from a saved state.

Registers given listener with this Navigator.

Replaces the current Navigator with given navigator.

If the receiving Navigator is currently active, the current child Navigator will be stopped and destroyed, and given navigator will receive a call to Navigator.onStart.

If the receiving Navigator is currently inactive, the current child Navigator will be destroyed. Starting the receiving Navigator will trigger a call to the Navigator.onStart method of given navigator.

Calling this method when the receiving Navigator has been destroyed will have no effect.

Finishes this Navigator.

If this Navigator is currently active, the current child Navigator will be stopped and destroyed, and the receiving Navigator will be destroyed.

If this Navigator is currently not active, the current navigator will only have its Scene.onDestroy method called.

Calling this method when the Navigator has been destroyed will have no effect.

Starts this Navigator.

Calling this method when the Navigator is not started or destroyed triggers a call to Scene.onStart for the Scene that is currently active in the Navigator. Listeners registered with addNavigatorEventsListener will be notified of that Scene through Events.scene.

Calling this method when the Navigator is started or destroyed has no effect.

Stops this Navigator.

Calling this method when the Navigator is started triggers a call to Scene.onStop for any Scenes that are currently active in the Navigator.

Calling this method when the Navigator is stopped or destroyed has no effect.

Destroys this Navigator.

Calling this method when the Navigator is started will trigger a call to Scene.onStop for the Scene that is currently active in the Navigator. Furthermore, a call to Scene.onDestroy is triggered for every Scene this Navigator is managing.

Calling this method when the Navigator is stopped triggers a call to Scene.onDestroy for every Scene this Navigator is managing.

Calling this method when the Navigator is destroyed has no effect.

When this method has been called, the Navigator must be considered as dead, and no calls to onStart or onStop should be done anymore.

Called when a Scene change occurs in the Navigator.

Will only be called if a Scene change occurs when the Navigator is in the started state, or when the Navigator enters the started state.

Called when the Navigator has finished.

Finish events occur when the Navigator has no more Scenes to show, such as a stack-based Navigator with an empty stack, or a wizard Navigator that reached the end of the wizard.

Invoked when the user presses the back button.

Returns whether this Navigator has been destroyed.