Question

I have this idea that I want to implement into my project.
I know it is doable, but I do not know where to start.

I have a JPanel,
in there will be a Jbutton , a JLabel, and a ComboBox, and a JtextArea.

Originally, there is only the JtextArea and JButton on my panel.

When I hit the button, the Combobox, and JLabel will slide in or fade in, or drop down, or event rotate in.

So how would I accomplish this, I know I have to use graphic g, repaint(). It is easy to do the Jlabel but what about the combobox.

Should I add the combobox and Jlabel into a separate Jpanel and make that panel animated in. but even that, I do not know how to make this panel in motion.

Please help me on this, and example would be appreciated

Thank you!

Answer 1

To get started, you’ll probably need to research these terms:

• Slide layout (thanks @Andrew Thompson)
• setLocation
• TimerTask (I think, or maybe just Timer)
• clobbering graphics objects

Once you know about that stuff, you’ll be in a position to make the design decisions that you’re asking about.

It sounds like you’ll have a child panel with a slide layout. Try not to use null layouts when possible.

You’ll set its location or style per each tick in a timer task.

If you’re setting a style, you’ll need to clone your graphics object to avoid “clobbering” it – that is, work on a copy of the graphics object, so the original isn’t changed or repainted accidentally while you’re working on it.