This fragment uses 4 vertical seekbars. Each bar is adjustable between 0% and 100%. As a bar is adjusted the other bars adjust in realtime so that the total of all bars always equals 100%

BarsFragment.java

public class BarsFragment extends Fragment {
	int[] positionsArray = new int[4];
	VerticalSeekBar[] seekBarArray;
	LinearLayout ll;
	@Override
	public View onCreateView(LayoutInflater inflater, ViewGroup container,
			Bundle savedInstanceState) {
		View view = inflater.inflate(R.layout.barsfragment, container, false);
		String myTag = getTag();
		((MainActivity) getActivity()).setFragmentTag(myTag);
		for (int x = 0; x < positionsArray.length; x++) {
			positionsArray[x] = 25;
		}
		seekBarArray = new VerticalSeekBar[4];
		seekBarArray[0] = (VerticalSeekBar) view.findViewById(R.id.redbar);
		seekBarArray[1] = (VerticalSeekBar) view.findViewById(R.id.bluebar);
		seekBarArray[2] = (VerticalSeekBar) view.findViewById(R.id.yellowbar);
		seekBarArray[3] = (VerticalSeekBar) view.findViewById(R.id.pinkbar);
		for (VerticalSeekBar vsb : seekBarArray) {
			setupSeekBar(vsb);
		}
		ll = (LinearLayout) view.findViewById(R.id.ll);
		ll.setOnLongClickListener(longClickListener);
		return view;
	}

	private void setupSeekBar(VerticalSeekBar vsb) {
		vsb.setOnSeekBarChangeListener(seekListener);
		vsb.setMax(100);
		vsb.setProgress(25);
	}

	VerticalSeekBar.OnSeekBarChangeListener seekListener = new VerticalSeekBar.OnSeekBarChangeListener() {

		@Override
		public void onStopTrackingTouch(VerticalSeekBar seekBar) {
		}

		@Override
		public void onStartTrackingTouch(VerticalSeekBar seekBar) {
		}

		@Override
		public void onProgressChanged(VerticalSeekBar seekBar, int progress,
				boolean fromUser) {
			if (fromUser) {
				int diff = 0;
				for (int x = 0; x < tagsArray.length; x++) {
					if (seekBar.getTag().toString().matches(tagsArray[x])) {
						if (progress < positionsArray[x]) {
							diff = positionsArray[x] - progress;
							Log.d("*", "down : " + String.valueOf(diff));
							while (0 < diff) {
								int moveThis = getIndexOfRandomSeekBar(seekBar
										.getTag().toString());
								seekBarArray[moveThis].incrementProgressBy(1);
								diff--;
							}
						} else if (progress > positionsArray[x]) {
							diff = progress - positionsArray[x];
							Log.d("*", "up : " + String.valueOf(diff));

							while (0 < diff) {
								int moveThis = getIndexOfRandomSeekBar(seekBar
										.getTag().toString());
								if (seekBarArray[moveThis].getProgress() != 0) {
									seekBarArray[moveThis]
											.incrementProgressBy(-1);
									diff--;
								}
							}
						}
					}
				}
				for (int x = 0; x < tagsArray.length; x++) {
					positionsArray[x] = seekBarArray[x].getProgress();
					Log.d("", String.valueOf(tagsArray[x]) + "set to "
							+ positionsArray[x]);
				}
			}
		}
	};
        public BarsFragment() {
	}
        private static String[] tagsArray = new String[] { "redbar", "bluebar",
			"yellowbar", "pinkbar" };

	public int getIndexOfRandomSeekBar(String tag) {
		ArrayList<Integer> indexes = new ArrayList<Integer>();
		for (int x = 0; x < tagsArray.length; x++) {
			if (!tagsArray[x].equals(tag)) {
				indexes.add(x);
			}
		}
		Collections.shuffle(indexes);
		return indexes.get(0).intValue();
	}

	View.OnLongClickListener longClickListener = new View.OnLongClickListener() {
		@Override
		public boolean onLongClick(View v) {
			for (int x = 0; x < positionsArray.length; x++) {
				positionsArray[x] = 25;
				seekBarArray[x].setProgress(25);

			}
			return false;
		}
	};
}