Android NDK GIF Library

GIF library built with ndk and gradle in aar format for usage with android gradle build system.

0.3.3 Change Log

• Added Gif Image Iterator for Image decoding.
• Fixed a problem of residual image on transparent background.

Encoding Option

• ENCODING_TYPE_SIMPLE_FAST
  • use low memory and encode fast. But low quality.
  • 
• ENCODING_TYPE_FAST (Thanks to commitor "JBurkeKF")
  • encode fast. And better quality.
  • 
• ENCODING_TYPE_NORMAL_LOW_MEMORY
  • use lower memory than ENCODING_TYPE_STABLE_HIGH_MEMORY. and image changing dynamic.
  • 
• ENCODING_TYPE_STABLE_HIGH_MEMORY
  • slowest and use high memory. But high quality and stable image sequence.
  • 

How to use

Remote repository

...  repositories {

  maven {
 url "http://dl.bintray.com/waynejo/maven" 
}

  ... 
}
  dependencies {

  compile('com.waynejo:androidndkgif:0.3.3') 
}

Decoding using Iterator. (Less memory used)

GifDecoder gifDecoder = new GifDecoder();
 final GifImageIterator iterator = gifDecoder.loadUsingIterator(destFile);
 while (iterator.hasNext()) {

  GifImage next = iterator.next();

  if (null != next) {

imageView.setImageBitmap(next.bitmap);

  
}
 
}
 iterator.close();

Decoding

GifDecoder gifDecoder = new GifDecoder();
 boolean isSucceeded = gifDecoder.load(destFile);
 if (isSucceeded) {

  for (int i = 0; i < gifDecoder.frameNum();
 ++i) {

Bitmap bitmap = gifDecoder.frame(i);

  
}
 
}

Encoding

GifEncoder gifEncoder = new GifEncoder();
 gifEncoder.init(width, height, filePath, GifEncoder.EncodingType.ENCODING_TYPE_NORMAL_LOW_MEMORY);
  // Bitmap is MUST ARGB_8888. gifEncoder.encodeFrame(bitmap1, delayMs);
 gifEncoder.encodeFrame(bitmap2, delayMs);
  gifEncoder.close();

Reference

• GIF Decoder is originally based on https://code.google.com/p/android-gifview/ .