Dynamic Drawer

Additionally, you want to draw things on element in animation.

Download Sample File

You can download a sample file from SVGA-Samples to try.

Step

Load animation as usual.

// Setup a SVGAImageView by yourself.
try {
    parser.parse(new URL("https://github.com/yyued/SVGA-Samples/blob/master/kingset.svga?raw=true"), 
        new SVGAParser.ParseCompletion() {
            @Override
            public void onComplete(@NotNull SVGAVideoEntity videoItem) {
            }
            @Override
            public void onError() {

            }
        }
    );
} catch (Exception e) {
    System.out.print(true);
}

Setup drawer.

try {
    parser.parse(new URL("https://github.com/yyued/SVGA-Samples/blob/master/kingset.svga?raw=true"), 
        new SVGAParser.ParseCompletion() {
            @Override
            public void onComplete(@NotNull SVGAVideoEntity videoItem) {
                SVGADynamicEntity dynamicEntity = new SVGADynamicEntity();
                dynamicEntity.setDynamicDrawer(new Function2<Canvas, Integer, Boolean>() {
                    @Override
                    public Boolean invoke(Canvas canvas, Integer frameIndex) {
                        Paint aPaint = new Paint();
                        aPaint.setColor(Color.WHITE);
                        canvas.drawCircle(50, 54, frameIndex % 5, aPaint);
                        return false;
                    }
                }, "banner");
                SVGADrawable drawable = new SVGADrawable(videoItem, dynamicEntity);
                testView.setImageDrawable(drawable);
                testView.startAnimation();
            }
            @Override
            public void onError() {

            }
        }
    );
} catch (Exception e) {
    System.out.print(true);
}

As result, you see a circle drawn on the banner.

ImageKey

The imageKey is the name of png file, ask your designer tell you the file name.

For example, the layer png image file name is xxx.png, imageKey is xxx. File name should always use English name, do not use Chinese or Japanese etc.