[codenameone-discussions] Switch to next image in ImageViewer every 3 sec

[Fuad Nassar]

*i used ImageViewer in my app and i want to display images for user as 
automatically change.*
*my code is *

   

String[] imageURLs = {
  "
http://awoiaf.westeros.org/images/thumb/9/93/AGameOfThrones.jpg/300px-AGameOfThrones.jpg
",
"
http://awoiaf.westeros.org/images/thumb/3/39/AClashOfKings.jpg/300px-AClashOfKings.jpg
",
"
http://awoiaf.westeros.org/images/thumb/2/24/AStormOfSwords.jpg/300px-AStormOfSwords.jpg
",
"
http://awoiaf.westeros.org/images/thumb/a/a3/AFeastForCrows.jpg/300px-AFeastForCrows.jpg
",
"http://awoiaf.westeros.org/images/7/79/ADanceWithDragons.jpg";
}; 
ImageList imodel = new ImageList(imagess); 
ImageViewer iv = new ImageViewer(imodel.getItemAt(0));
  new UITimer(() -> {
            if (i < 4) {

            *    ///... here i should change selected index, how i can do 
this ?*

                i++;
            } else {
                i = 0;
            }
        }).schedule(3000, true, hi);



      class ImageList implements ListModel<Image> {

            String[] images_str;
            private int selection;

//            public void setImages(String[] images_str) {
//                this.images_str = images_str;
//            }
            private Image[] images;
            private EventDispatcher listeners = new EventDispatcher();

            public ImageList(String[] images_str) {
                this.images_str = images_str;
                this.images = new EncodedImage[images_str.length];
            }

            public Image getItemAt(final int index) {
                if (images[index] == null) {
                    images[index] = placeholder;
                    
Util.downloadUrlToStorageInBackground(images_str[index], "list" + index, 
(e) -> {
                        try {
                            images[index] = 
EncodedImage.create(Storage.getInstance().createInputStream("list" + 
index)).scaledWidth(Display.getInstance().getDisplayWidth());
                            listeners.fireDataChangeEvent(index, 
DataChangedListener.CHANGED);
                        } catch (IOException err) {
                            err.printStackTrace();
                        }
                    });
                }
                return images[index];
            }

            public int getSize() {
                return images_str.length;
            }

            public int getSelectedIndex() {
                return selection;
            }

            public void setSelectedIndex(int index) {
                selection = index;
            }

            public void addDataChangedListener(DataChangedListener l) {
                listeners.addListener(l);
            }

            public void removeDataChangedListener(DataChangedListener l) {
                listeners.removeListener(l);
            }

            public void addSelectionListener(SelectionListener l) {
            }

            public void removeSelectionListener(SelectionListener l) {
            }

            public void addItem(Image item) {
            }

            public void removeItem(int index) {
            }
        };



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