Java Music Player GUI

Question

Hello. I am implementing a GUI using Swing for a Java Music Player. I'd like to know if it is possible to make a time bar like the bar in WinAmp for example that can be moved to jump to a certain position in a song and shows the current position. If possible, how would one go about this?

Also, I'm using a JList to display Playlists and I'd like to know how to get double click events. I know that there are selection events, but I'd like objects in the list to be selected and start playing upon double clicks, not single clicks. I'd also like them to only be selected once, so the the event is not continuously called.

Thank you.

Answer 1

You surely can create such a control. You maybe want to sub-class JSlider and adapt it accordingly. You can simply override the paintComponent method to adapt the look but it it probably not done in a few minutes. You may also want to handle mouse clicks on the slider differently because I think normally clicking right or left of the thumb causes the slider to jump by a certain interval instead of jumping right to the click location.

As for double-clicks, simply use your overridden mouseClicked method of MouseListener. The MouseEvent has a method named getClickCount which will you can check to be 2 for a double-click.

I'm not quite sure what you mean with "only selected once". I'm guessing here but JList fires two selection "events" for each click: One on pressing the mouse button, another one upon release. This is annoying sometimes, especially if you fire something more expensive on selection.