code: public void startScreenshotSequence(String name, int quality, int frameDelay, int maxFrames) {
  		if(config.commandLogging){
  			Log.d(config.commandLoggingTag, "startScreenshotSequence(\""+name+"\", "+quality+", "+frameDelay+", "+maxFrames+")");
  		}
  		
  		screenshotTaker.startScreenshotSequence(name, quality, frameDelay, maxFrames);
  	}
docs: Takes a screenshot sequence and saves the images with the specified name prefix in the {@link Config} objects save path (default set to: /sdcard/Robotium-Screenshots/).
  
  The name prefix is appended with "_" + sequence_number for each image in the sequence,
  where numbering starts at 0.
  
  Requires write permission (android.permission.WRITE_EXTERNAL_STORAGE) in the
  AndroidManifest.xml of the application under test.
  
  Taking a screenshot will take on the order of 40-100 milliseconds of time on the
  main UI thread.  Therefore it is possible to mess up the timing of tests if
  the frameDelay value is set too small.
  
  At present multiple simultaneous screenshot sequences are not supported.
  This method will throw an exception if stopScreenshotSequence() has not been
  called to finish any prior sequences.
  
  @param name the name prefix to give the screenshot
  @param quality the compression rate. From 0 (compress for lowest size) to 100 (compress for maximum quality)
  @param frameDelay the time in milliseconds to wait between each frame
  @param maxFrames the maximum number of frames that will comprise this sequence