如何在Intellij Idea中创建像Quick Doc这样的弹出提示窗口？

Question

I am developing a simple swing application and I would like to have something which can help user with it. As example a little popup window will appear over "Start" button when user runs app first time and say "Hey, click here to start playing with me!"

Do you know the way to create something like quick doc in Intellij Idea? Could you please put me on the right way to sources, examples, source codes or anything else which could be useful? Below is example of how it can look like

PS. I have updated the picture.

Answer 1

As I said in the comment use javax.swing.PopupFactory to show popup for any component (which is probably not pointed by the mouse)

Popup p = PopupFactory.getSharedInstance().getPopup(component, new JLabel("It's a hint!"), 5, 5);
p.show();

component is the widget for which the popup must be shown.

You can also use the javax.swing.Timer to hide this popup automatically.

Answer 2

Tooltips are used in Swing to give the hover-over text that you are looking for. It is very easy to use a tooltip, all you have to do is set the tooltip text on your button

btnStart.setToolTipText("Hey, click here to start playing with me!");

Here is a pretty useful guide that explains the topic in more depth http://docs.oracle.com/javase/tutorial/uiswing/components/tooltip.html