How to pick dominant color from image on Android. Palette Google library used.

PickDominantColor.java

// Don't forget to add Palette library to your build.gradle
// compile 'com.android.support:palette-v7:+'

 public static int getDominantColor(Bitmap bitmap) {
        List<Palette.Swatch> swatchesTemp = Palette.from(bitmap).generate().getSwatches();
        List<Palette.Swatch> swatches = new ArrayList<Palette.Swatch>(swatchesTemp);
        Collections.sort(swatches, new Comparator<Palette.Swatch>() {
            @Override
            public int compare(Palette.Swatch swatch1, Palette.Swatch swatch2) {
                return swatch2.getPopulation() - swatch1.getPopulation();
            }
        });
        return swatches.size() > 0 ? swatches.get(0).getRgb() : getRandomColor();
    }