Once Timeline is set up, you can control its flow using the following methods:

timeline.play();
timeline.pause();
timeline.stop(); 

Note that stop() resets Timeline, while pause() allows Timeline to be played again from the same point by another play() call.

Two other important properties are the following:

• autoReverse:Allows an animated object to go back and forth smoothly
• cycleCount: Repetition count. The default value is 1 and the maximalvalue is infinite; it can be set through the Timeline.INDEFINITE constant:

        timeline.setCycleCount(Timeline.INDEFINITE);
        timeline.setAutoReverse(true);

To check whether Timeline is playing, you can use the Timeline.getStatus() method, which returns one of the following three values:

Animation.Status.RUNNING // after play()
Animation.Status.PAUSED  // after pause()
Animation.Status.STOPPED // initial Timeline state and one after stop()

For example, to start and pause Timeline on mouse clicks, you can use the following code:

// Also note that is how mouse events are handled in JavaFX: 
// you choose an object and provide a corresponding MouseEvent handler
root.setOnMouseClicked((event) -> {
            if (timeline.getStatus() == Animation.Status.RUNNING) 
                timeline.pause(); 
            else 
                timeline.play();});