javafx video player timeSlider - javafx

Question

How to make slider to move as video plays?
Initialization :
BorderPane border = new BorderPane();
HBox bar = new HBox(10);
//Button play = new Button("Play");
//Button pause = new Button("Pause");
Media:
Media media = new Media(Paths.get("C://video.mp4").toUri().toString());
MediaPlayer player = new MediaPlayer(media);
MediaView mediaView = new MediaView(player);
Positioning :
bar.getChildren().addAll(play,pause,timeSlider);
bar.setAlignment(Pos.CENTER);
border.setCenter(mediaView);
border.setBottom(bar);
Any suggestions how to make my slider move as video plays?
Edit:
Found answer :
player.currentTimeProperty().addListener((obs, oldTime, newTime) -> {
if (!timeSlider.isValueChanging()) {
timeSlider.setValue(newTime.toSeconds());
}
});

Answer 1

I'm working on a similar problem right now. This should work for you:
// Listen to the slider. When it changes, seek with the player.
// MediaPlayer.seek does nothing when the player is stopped, so the play/pause button's handler
// always sets the start time to the slider's current value, and then resets it to 0 after starting the player.
InvalidationListener sliderChangeListener = o-> {
Duration seekTo = Duration.seconds(timeSlider.getValue());
player.seek(seekTo);
});
timeSlider.valueProperty().addListener(sliderChangeListener);
// Link the player's time to the slider
player.currentTimeProperty().addListener(l-> {
// Temporarily remove the listener on the slider, so it doesn't respond to the change in playback time
// I thought timeSlider.isValueChanging() would be useful for this, but it seems to get stuck at true
// if the user slides the slider instead of just clicking a position on it.
timeSlider.valueProperty().removeListener(sliderChangeListener);
// Keep timeText's text up to date with the slider position.
Duration currentTime = player.getCurrentTime();
int value = (int) currentTime.toSeconds();
timeSlider.setValue(value);
// Re-add the slider listener
timeSlider.valueProperty().addListener(sliderChangeListener);
});