GiffleSample.java

Giffle.GiffleBuilder builder = new Giffle.GiffleBuilder()
    .size(320, 480) // otuput image size 320x480
    .delay(100) // 100 ms
    .file(File.createTempFile("PicCollage", "gif"));
final Giffle encoder = builder.build();
List<Bitmap> bitmaps = getOutputBitmaps(); // please impelemnt this block by youself
int[] colors = getTrainingPixels(bitmaps, pw, ph, totalFrame, frameMs); // this part is tricky
encoder.GenPalette(colors.length, colors);
for (Bitmap bm : bitmaps) {
    encoder.AddFrame(bm);
}
encoder.Close();
// END

private int[] getTrainingPixels(final List<Bitmap> bitmaps, int width, int height) {
    int trainingWidth = width / 2;
    int trainingHeight = height / 2;
    int frameLen = trainingWidth * trainingHeight;
    int[] tmp = new int[frameLen];
    int[] multiImagePixels = new int[frameLen * frameNum];
    for (Bitmap bm : bitmaps) {
        bm.getPixels(tmp, 0, bm.getWidth(), 0, 0, bm.getWidth(), bm.getHeight());
        System.arraycopy(tmp, 0, multiImagePixels, frameLen * i, pp.length);
    }
    return multiImagePixels;
}