Tuesday, February 14, 2017

Re: Animating images in GWT

OK Thanks. Would that work as well if ultimately I will want to interrupt the timer to have buttons to pause the animation or sequence and continue?

On Tuesday, 14 February 2017 16:31:22 UTC+1, Thomas Broyer wrote:

On Tuesday, February 14, 2017 at 4:20:11 PM UTC+1, Jonathan Cook wrote:

I wanted to know the best way of taking a list of images which come from an HTTP request, each image then needs to be retrieved.

I would then like to use the images to make an animation behaviour so it looks like the list of images is for example is an animated gif. Moving between each image using a configurable time period.

This needs to be done using GWT. I saw that you can create a custom animation by using extends Animation:

I also saw AbstractImagePrototype but I'm not sure what to use, also exists AnimationScheduler.

I made a simple example with javascript using setInterval but its not clear in GWT how this should be done.

Use a com.google.gwt.user.client.Timer, or com.google.gwt.core.client.Scheduler.
Don't overdesign/overengineer using animations.
Also, just like in pure JS, you can swap in Image widgets or ImageElement elements, or update their 'src'.

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