Android棒棒糖联系人颜色

Question

如何select 联系人徽章的颜色。使用什么算法？

Answer 1

不保存。它使用联系人姓名字符串的哈希码来确定颜色。

示例：

String name = "Harish";
int colors[] = new int[] { Color.RED, Color.GREEN, Color.BLUE};

int chosenColor = colors[Math.abs(name.hashCode()) % colors.length];

我学到了这个answer

Answer 2

您可以试试这样的颜色生成器..

public class ColorGenerator {

    public static ColorGenerator DEFAULT;

    public static ColorGenerator MATERIAL;

    static {
        DEFAULT = create(Arrays.asList(
                //your list of default tints
        ));
        MATERIAL = create(Arrays.asList(
                //your list of material colors
        ));
    }

    private final List<Integer> mColors;
    private final Random mRandom;

    public static ColorGenerator create(List<Integer> colorList) {
        return new ColorGenerator(colorList);
    }

    private ColorGenerator(List<Integer> colorList) {
        mColors = colorList;
        mRandom = new Random(System.currentTimeMillis());
    }

    public int getRandomColor() {
        return mColors.get(mRandom.nextInt(mColors.size()));
    }

    public int getColor(Object key) {
        return mColors.get(Math.abs(key.hashCode()) % mColors.size());
    }
}

Android棒棒糖联系人颜色

Android lollipop contact color

android

android-5.0-lollipop