如何将 Java 中的“Color.rgb”设置为随机？

Question

I'm experimenting with Android studio and I wanted to pass a random value to the color.rgb. This is the code that I tried

int x  = rand.nextInt(9);
int y  = rand.nextInt(9);
int z  = rand.nextInt(9);

viewTest.setBackgroundColor(Color.rgb(x,y,z));

edit: the color range is between 0 and 255 so to right code is

int x  = rand.nextInt(255);
int y  = rand.nextInt(255);
int z  = rand.nextInt(255);

viewTest.setBackgroundColor(Color.rgb(x,y,z));

not the best solution but it works Thanks to jon Skeet for remembering me :)

Answer 1

You can generate a random color like this:

Random rng = new Random();
int red = rng.nextInt(256);
int green = rng.nextInt(256);
int blue = rng.nextInt(256);

viewTest.setBackgroundColor(Color.rgb(red, green, blue));

Using nextInt(266) means that you will get a random int from 0 to 255.