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Dynamic Text Layout

PonyCui edited this page Dec 19, 2018 · 2 revisions

Another way to add text above an element is StaticLayout. With StaticLayout, you could render SpannableString 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 text layout

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();
                SpannableStringBuilder spannableStringBuilder = new SpannableStringBuilder("Pony sends many flowers.");
                spannableStringBuilder.setSpan(new ForegroundColorSpan(Color.YELLOW), 0, 4, Spannable.SPAN_INCLUSIVE_INCLUSIVE);
                TextPaint textPaint = new TextPaint();
                textPaint.setColor(Color.WHITE);
                textPaint.setTextSize(28);
                dynamicEntity.setDynamicText(new StaticLayout(
                            spannableStringBuilder,
                            0,
                            spannableStringBuilder.length(),
                            textPaint,
                            0,
                            Layout.Alignment.ALIGN_CENTER,
                            1.0f,
                            0.0f,
                            false
                ), "banner");
                SVGADrawable drawable = new SVGADrawable(videoItem, dynamicEntity);
                testView.setImageDrawable(drawable);
                testView.startAnimation();
            }
            @Override
            public void onError() {

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

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.

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