Android maps utils cluster icon color

Question

Is there any method to change the background color of the cluster item? (the one that displays the count of the markers, like 100+, 200+ ...). I tried to look into the sourc

Answer 1

Go to DefaultClusterRenderer (package com.google.maps.android.clustering.view;), and change the getColor() method to this:

private int getColor(int clusterSize) {
        // custom color
        double _logClusterSize; // log
        final int _maxRed = Integer.parseInt("ff", 16);
//        Log.v("kai", String.valueOf(_maxRed));
        final int _minRed = Integer.parseInt("e6", 16);
        final int _maxGreen = Integer.parseInt("a2", 16);
        final int _minGreen = Integer.parseInt("47", 16);
        final int _maxBlue = Integer.parseInt("93", 16);
        final int _minBlue = Integer.parseInt("2d", 16);
        final double _maxLogClusterSize = 10;
        double _step = (_maxRed - _minRed) / _maxLogClusterSize;

        _logClusterSize = Math.log(clusterSize);
        if(_logClusterSize > 10) _logClusterSize = 10;

        int _red = _maxRed - (int) (_step * _logClusterSize);
        int _green = _maxGreen - (int) (_step * _logClusterSize);
        int _blue = _maxBlue - (int) (_step * _logClusterSize);

        return Color.rgb(_red, _green, _blue);

//        final float hueRange = 220;
//        final float sizeRange = 300;
//        final float size = Math.min(clusterSize, sizeRange);
//        final float hue = (sizeRange - size) * (sizeRange - size) / (sizeRange * sizeRange) * hueRange;
//        return Color.HSVToColor(new float[]{
//                hue, 1f, .6f
//        });
    }

This will change the Cluster color to pink, in the range of the color defined by min(max) red(green, blue). Hope that help!