GUI freezes when drawing Wave from animation on JPanel though i used Swing Timer

Question

plese look at my code snippets , wha is wrong with it , it frrezes GUI when the Swing timer stats which is repeteadly paints on the jpnael ??

class WaveformP         


        

Answer 1

I'm guessing that your wave drawing code, which is being called from within a paintComponent(...) method is taking longer than you think and is tying up both Swing painting and the EDT.

If this were my code, I'd consider drawing my waves to BufferedImages once, making ImageIcons from these images and then simply swapping icons in my Swing Timer.