Changing the opacity from 0.0 0.1 .. to 1.0 to create an animation effect

Question

I'm trying to change the opacity of my frame from 0 to 10 (0.0,0.1,0.2..1.0) so it will create an animation effect.

I tried this code at the end of the constructor but it produce only the last value of the opacity:

for(float k=0;k<=10;k++)
    {
        try {
            Thread.sleep(200);
        } catch (InterruptedException ex) {
        }
        setOpacity(k/10);
    }

Reimeus · Accepted Answer · 2013-04-17T00:41:18.833

4

Swing is single threaded. Calling Thread.sleep in the EDT prevents UI updates. Use a Swing Timer instead.

edited Apr 17 '13 at 00:41

answered Apr 17 '13 at 00:02

Reimeus

158,255
15
216
276

1

To suspend it, you can call the `stop()` method. – 0x6C38 Apr 17 '13 at 00:15

score 0 · Answer 2 · answered Apr 17 '13 at 00:03

0

When the animation is needed to initialize set some boolean variable to true, and then in the render function check if the boolean variable is true, and if it is, add .1, and when it reaches one set the boolean variable back to false.

answered Apr 17 '13 at 00:03

Kyle Saltzberg

64
2

Changing the opacity from 0.0 0.1 .. to 1.0 to create an animation effect

2 Answers2