Re: Animating images in GWT

To preload images:

img = Document.get().createImageElement()

img.setSrc(url)

(you could then keep all those ImageElement⋅s in a list and use them directly instead of setHTML)

You can use Image widgets too, which have load event handlers.

On Wednesday, February 15, 2017 at 1:33:37 PM UTC+1, Jonathan Cook wrote:

I tried with a timer but the transition is a little slow the first time as the images download. Is there some way to cache or download them into memory before iterating them?

// Create a new timer that iterates the images
               Timer t = new Timer() {
                  int counter = 0;

                  @Override
                  public void run() {
                     if (counter < imageUrls.size()) {
                        iconPreviewHTML.setHTML("<img src=\"" + imageUrls.get(counter) + "\"/>");
                     }
                     counter++;
                  }
               };
               // Schedule the timer to run once in x seconds.
               t.scheduleRepeating(500);

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