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javaswtsystem-traytrayicontray

Display numbers on a tray icon with SWT

I would like to show some numbers on my tray icon indicating a number of events that happened to the user like what is done in this facebook notifications icons:

enter image description here

Do you think that it is possible ?

Thank you

Solution

  • You can do this using the TaskBar and TaskItem classes although it may not work on all platforms.

    TaskBar taskBar = Display.getDefault().getSystemTaskBar();
// TODO may return null if not supported on the platform

// Get application item

TaskItem taskItem = taskBar.getItem(null);
if (taskItem != null)
  taskItem.setOverlayText("your text");

    Also try:

    TaskItem taskItem = taskBar.getItem(shell);

    where shell is your main application shell. The TaskItem JavaDoc suggests trying both methods of getting the TaskItem:

    For better cross platform support, the application code should first try to set this feature on the TaskItem for the main shell then on the TaskItem for the application.