How to create an animated GIF from JPEGs in Android (development)

See this solution.

https://github.com/nbadal/android-gif-encoder

It's an Android version of this post.

http://www.jappit.com/blog/2008/12/04/j2me-animated-gif-encoder/

To use this class, here is an example helper method to generate GIF byte array. Note here the getBitmapArray() function is a method to return all the Bitmap files in an image adapter at once. So the input is all the Bitmap files in one adapter, the output is a byte array which you can write to the file.

public byte[] generateGIF() {    ArrayList<Bitmap> bitmaps = adapter.getBitmapArray();    ByteArrayOutputStream bos = new ByteArrayOutputStream();    AnimatedGifEncoder encoder = new AnimatedGifEncoder();    encoder.start(bos);    for (Bitmap bitmap : bitmaps) {        encoder.addFrame(bitmap);    }    encoder.finish();    return bos.toByteArray();}

To use this function, do the following then you can save the file into SDcard.

FileOutputStream outStream = null;        try{            outStream = new FileOutputStream("/sdcard/generate_gif/test.gif");            outStream.write(generateGIF());            outStream.close();        }catch(Exception e){            e.printStackTrace();        }

This might help you. It's a class which is used to generate gif files.

http://elliot.kroo.net/software/java/GifSequenceWriter/

It did very well for me, It create file fast and good quality images

//True for dither. Will need more memory and CPUAnimatedGIFWriter writer = new AnimatedGIFWriter(true);OutputStream os = new FileOutputStream("animated.gif");Bitmap bitmap; // Grab the Bitmap whatever way you can// Use -1 for both logical screen width and height to use the first frame dimensionwriter.prepareForWrite(os, -1, -1)writer.writeFrame(os, bitmap);// Keep adding frame herewriter.finishWrite(os);// And you are done!!!

https://github.com/dragon66/android-gif-animated-writer