make JavaFX wait until Timeline finishes

问题:

I have two timeline which runs inside one function, they are both affect one object, problem is when I play first timeline, other timeline also starts within next line of code, how can I wait until fist timeline finish then play another timeline?

回答1:

Timeline.play() is asynchronous—it starts the animation in the background and returns immediately. There are several ways to achieve sequential execution. Which fits best depends on your use case.

1. Use just one Timeline and move the KeyFrames from your second timeline to the first one, with adjusted start duration.
2. Start the second timeline when the first one is finished: timeline1.setOnFinished(e -> timeline2.play()).
3. If you can, use Transitions instead of Timelines and wrap them in a SequentialTransition.