Android:点击时生成随机颜色? [英] Android: Generate random color on click?

问题描述

我有一个 ImageView，我在其中以编程方式创建可绘制对象并将它们呈现给用户.我的目标是点击上述 ImageView 并更改 drawable 的颜色.

I have an ImageView, in which I am programmaticly creating drawables and presenting them to the user. My goal is to click on said ImageView and change the drawable's color.

我将如何处理随机颜色变化位?我目前正在修改 Random()、Color.argb() 和其他一些东西，但我似乎无法让它工作！

How would I go about the random color changing bit? I am currently tinkering with Random(), Color.argb() and a few other things, but I can't seem to get it to work!

推荐答案

Random rnd = new Random();
paint.setARGB(255, rnd.nextInt(256), rnd.nextInt(256), rnd.nextInt(256));

或

Random rnd = new Random(); 
int color = Color.argb(255, rnd.nextInt(256), rnd.nextInt(256), rnd.nextInt(256));   
view.setBackgroundColor(color);

尽管在您的情况下，您似乎想创建一个新的可绘制对象并将其分配给您的视图.在你的情况下，drawable 是什么?是图像、形状、填充...

Though in your case it seems that you want to create a new drawable and assign it to your view. What is actually the drawable in your case? Is it an image, shape, fill...

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